Did you know that a cyclic voltammogram can look like a familiar loop while telling a completely different story when its potential axis is reversed? If you need to translate cyclic voltammetry plots into clear English, another language, accessible descriptions or technical documentation, the scan direction matters just as much as the peaks. A diagram is not merely a shape: it is a record of how an electrode was driven and how current responded.
This guide explains how to translate cyclic voltammograms without confusing electrode potential, current, anodic and cathodic responses, forward and reverse sweeps, or the potential reference. Cyclic voltammetry, usually shortened to CV, changes a working electrode’s potential according to a programmed cycle and measures current as a function of that programme. It is a useful experimental technique, but its trace does not independently reveal every molecular mechanism.
For readers encountering electrochemical plots in research papers, laboratory manuals or classroom materials, accurate translation means preserving axes, units, signs, experimental conditions and the distinction between observation and interpretation. We will build from the simplest coordinates to examples involving diffusion, reversible electron transfer, catalysis and modified electrodes, always returning to what a reader can actually infer from the recorded data.
Begin with the measurement, not the curved line
A cyclic voltammogram is generally a plot of current against working-electrode potential, typically measured relative to a designated reference electrode. The instrument varies potential over a chosen interval, often reverses it, and records current as conditions change at the electrode. The result can form a loop with peaks, waves or flatter regions depending on the chemical system and setup.
It helps to tell readers what kind of measurement they are viewing before explaining the chemistry. Start with: this plot shows current response during a programmed potential sweep. Then identify the sample, electrode and electrolyte if known. Finally, describe important features with their potential and current coordinates. A translation that starts by assigning molecules to every wiggle may sound confident, but it can conceal the experiment’s actual evidence.
Potential and current are different physical quantities
Potential, measured in volts or millivolts, concerns the electrical condition of the working electrode relative to a reference. Current, measured in amperes and commonly shown in microamperes or milliamperes, concerns the rate of charge flow. Current density is current divided by an explicitly defined electrode area and has units such as mA/cm².
These quantities cannot be interchanged because a curve happens to have two numerical axes. When writing a caption, attach each measured value to its correct unit. A feature at −0.35 V with a cathodic current of −0.8 mA is a pair of coordinates, not two ways of expressing the same quantity. Preserving the difference is the foundation of faithful technical explanation.
The reference electrode completes the potential value
Electrode potential is ordinarily reported relative to a reference system. Common labels can include Ag/AgCl, saturated calomel, a particular nonaqueous reference or a calibrated redox standard. The number 0.2 V alone does not contain all the context needed for meaningful comparison. A report using 0.2 V versus one reference may not be numerically comparable with another that used a different reference.
Do not omit the phrase versus the stated reference when it matters. If a paper reports that values were converted to a standard scale, preserve the conversion explanation and any assumptions. Translation is not an opportunity to guess a reference because the figure resembles a familiar experiment. A label such as V vs Ag/AgCl belongs to the measurement, just like a unit belongs to a temperature.
Read increasing potential from tick values
Many people assume that left-to-right movement means increasing values. In electrochemical publications, potential axes may be displayed from positive to negative or negative to positive depending on convention, author preference and presentation. The page direction of a line is therefore not a reliable description of the physical sweep. This is a common source of reversed chemical explanations.
Inspect the axis numerals. State whether the programmed potential moves to more positive or more negative values rather than whether the line moves right or left. For screen-reader descriptions, mention if the x-axis is displayed in descending order. A mirrored picture can still be scientifically consistent, but a translation that ignores its numerals can turn the anodic and cathodic sequence upside down.
The initial direction is chosen by the experiment
Cyclic voltammetry may begin by scanning toward more positive potentials or toward more negative potentials. The initial direction is not universally oxidation or reduction. It depends on the species, starting potential, electrode environment and process being investigated. A researcher may begin in a potential region where little faradaic reaction occurs before entering the region of interest.
If arrows or method notes identify the first sweep, include them in your translation. If no information establishes scan order, describe the observed branches without inventing which happened first. This is a crucial difference between reading a static picture and reconstructing an experiment. The graph displays data along a trajectory; the method determines the temporal order of that trajectory.
Forward and reverse do not always mean oxidation and reduction
The forward sweep is the first part of the programmed potential excursion, while the reverse sweep follows the switching point. Either part may contain oxidation, reduction, background charging or other processes. Calling every forward branch the oxidation branch and every return branch the reduction branch can be false.
A useful caption describes the first sweep by potential direction, then identifies any observed faradaic feature based on its supported assignment. It follows with the switching point and returning sweep. When a product formed on the first excursion is converted back on the return, explain that connection in the correct order. Otherwise, readers may assume the chemistry reversed simply because the applied potential reversed.
What oxidation and reduction mean at an electrode
Oxidation involves electron loss by a reacting species, while reduction involves electron gain. In an electrochemical cell, the working electrode can transfer electrons under suitable conditions as the applied potential changes. But the total current may also include charging of the electrical double layer or contributions from unintended processes. The plotted trace is not always pure oxidation or reduction current from the named analyte.
Translate the source’s reaction assignments, rather than treating all upward or downward features as one process. If a peak has been identified as oxidative in a validated system, that is meaningful information. If the peak remains unassigned, a neutral description of current sign and potential is safer. Chemical words should come from physical reasoning and evidence, not from a colour or line direction.
Understand anodic and cathodic current conventions
Anodic current is conventionally associated with oxidation; cathodic current with reduction. In a commonly used plotting convention, anodic current is positive and cathodic current negative. Nevertheless, instrument displays or exported charts may use different sign handling, so the translator should read the source’s convention rather than relying on memory.
A positive-looking peak on a page is not necessarily an anodic event if the y-axis is inverted or a sign transformation was applied. Check current ticks, legend and electrode process. In teaching language, it can be helpful to say that an anodic feature appears at the specified potential, with positive current in this graph’s convention. That short clarification prevents a visual convention from being mistaken for a universal drawing rule.
Why a peak can appear during a continuing sweep
Consider a dissolved electroactive species that begins reacting as electrode potential enters a suitable range. Current may increase because electron transfer becomes favourable, but concentration near the electrode surface changes as molecules are consumed or produced. Diffusion from the bulk solution then becomes important. Under appropriate conditions, the current reaches a peak and subsequently declines even while the potential continues in the same direction.
This is not evidence that electricity stopped flowing at the peak. It reflects the interaction of applied potential, available reactant and transport. A clear translation describes the maximum current response and then notes the subsequent fall rather than saying the reaction ended. This explanation is more accurate and helps a beginner understand the familiar rounded CV profile.
Distinguish a peak from a switching point
The switching potential is the programmed value where the instrument reverses the potential sweep. A redox peak potential is the potential at which a particular current feature reaches its extremum. The two values can differ considerably. A graph may include a sharp-looking turn near the edge of the x-axis that represents programme reversal rather than a chemical reaction.
When converting the figure into prose, mark the switching potential separately from peak positions. A listener should know which point was chosen by the operator and which features emerged from the sample’s response. Confusing them can make it seem that a substance oxidises at the scan boundary simply because the trace changes direction there.
Peak potential and peak current use separate units
Peak potential indicates the position of a current extremum along the potential axis. Peak current indicates the magnitude of the recorded current at that feature under a stated treatment. Some papers label anodic peak potential and cathodic peak potential with subscripts and report corresponding peak currents. Those labels should be translated consistently across figure, caption and results table.
If a figure reports a cathodic feature at −0.42 V and −150 µA, preserve the distinction. Do not call −150 µA a negative voltage or describe −0.42 V as a current density. When comparisons depend on peak height, note whether current was corrected for background and whether the reported value is a baseline-adjusted peak current or raw coordinate.
Current density needs a denominator
Electrodes can differ substantially in geometric area and surface structure. Comparing unnormalised current values may therefore be misleading. Many papers use current density, such as milliamperes per square centimetre, to assist comparison. Yet geometric area, electrochemically active area and catalyst-mass normalisation represent different bases and should not be silently substituted.
For a translated catalyst study, state whether reported values are total currents or values divided by a specific area. A change from 5 mA to 5 mA/cm² is not a harmless editorial correction. The denominator changes the physical quantity. If a paper does not define which area it used, avoid inventing that detail in the translated explanation.
Scan rate is how fast potential changes
Scan rate is expressed as a change in potential per unit time, commonly millivolts per second. A sweep at 100 mV/s traverses a given potential interval faster than a sweep at 10 mV/s. This rate can affect peak positions and sizes, reaction competition and the relative importance of current contributions. It is not the same thing as reaction rate or measured electrical current.
Translate the number together with its unit. Do not call a rate of 100 mV/s a voltage of 100 mV. If several traces are collected at different rates, identify their order and preserve which curve belongs to each rate. A statement that current increased with scan rate may be true but still incomplete without specifying whether peak current or background current was measured.
Diffusion-controlled models have conditions
For an idealised reversible soluble redox species in an appropriate planar-electrode system, peak current can follow a relationship involving the square root of scan rate. Researchers use such trends to investigate diffusion-controlled behaviour. But real voltammograms may contain adsorption, chemical reactions, uncompensated resistance or other complications that change the observed relationship.
A translator should preserve the source’s model and qualifiers. Say that the observed trend is compatible with diffusion control under the stated assumptions rather than claiming the graph uniquely proves diffusion. If a separate plot shows peak current against square root of scan rate, its horizontal axis is not simply ordinary scan rate. Name the transformed variable in the translated caption.
Surface-bound species can follow another pattern
A species attached to an electrode can behave differently from molecules freely diffusing in solution. Under an ideal surface-confined model, peak current may scale approximately with scan rate rather than its square root. Interactions, surface coverage and electron-transfer kinetics can modify that picture. The comparison is useful but should not be applied without examining electrode preparation.
If a report discusses a modified electrode, explain what was bound to or coated on the surface and which features the source attributes to that layer. Do not treat every larger peak as evidence of more dissolved analyte. The current may reflect surface coverage, electrode area, background charging or another process. Accurate translation preserves the proposed origin and the experimental basis for assigning it.
Faradaic and capacitive contributions coexist
Faradaic current arises from charge-transfer reactions, while capacitive current is associated with charging of the electrode interface. Both can appear in a measured scan. In a clean example, a reaction peak may stand well above a charging background. In another experiment, the baseline may be large, tilted or dependent on scan rate, complicating peak measurement.
A source may subtract a blank electrolyte response or fit a baseline before reporting peak current. Include that processing step. A translated sentence should not assert that a peak height reflects only electroactive material when the current contains substantial background. The presence of a clear-looking line does not guarantee chemical specificity, and a good caption helps readers understand what the analyst did to isolate a signal.
Peak separation and electrochemical reversibility
For a simple reversible one-electron couple under appropriate theoretical conditions, anodic and cathodic peak positions have an expected relationship. The measured separation can differ when electron transfer is slower, solution resistance matters or other processes occur. Researchers may use this information to discuss electrochemical reversibility, but the connection depends on the model.
Do not translate a narrow separation as proof of perfect reversibility in every system. Likewise, a wide separation does not uniquely establish one failure mechanism. State the peak positions, their difference and the assumptions underlying the source’s conclusion. If a study calls the behaviour quasi-reversible, preserve that term and explain its intended electrochemical meaning rather than replacing it with an imprecise almost reversible.
Chemical reversibility is another question
A reduced or oxidised species produced during the sweep may react chemically before the reverse scan. A subsequent reaction can reduce the return peak even if the original electron transfer was fast. Conversely, a kinetically slow electron-transfer step can distort the voltammogram without requiring that the reaction product decomposed irreversibly.
These possibilities matter when translating discussions of chemical versus electrochemical reversibility. A missing return peak does not, on its own, prove which factor is responsible. The narrative should follow the source’s mechanism proposal, include any experiments that support it, and distinguish disappearance of a signal from disappearance of a substance. That distinction protects an important scientific inference.
Formal potential and midpoint estimates
For appropriate reversible couples, authors may estimate a formal or midpoint potential from the positions of anodic and cathodic peaks. This can be useful for characterising a redox couple, but the method is not automatically valid for strongly irreversible or catalytic profiles. Several different terms—formal potential, half-wave potential and peak midpoint—have specific uses.
When translating a numerical result, preserve the exact term and its determination method. A casual substitution with reaction voltage loses context. If the source relates an estimate to a particular reference electrode and electrolyte, keep those conditions visible. The resulting figure description should tell readers which value was directly observed and which was derived from a pair of observations.
Uncompensated resistance changes apparent potentials
A current flowing through solution resistance can generate an iR drop, causing the actual interfacial potential to differ from a nominal instrument setting. This may shift or broaden features, especially at higher currents. Some instruments and analyses apply compensation or report corrected values. The abbreviation iR is not decorative: it describes a potential error linked to current and resistance.
Translate corrected and uncorrected potentials consistently. If the study says compensation was applied, do not imply it necessarily removed every distortion. If two curves differ significantly in current magnitude, avoid assuming their peak shifts are purely chemical without examining resistance and method conditions. A reliable translation helps readers see how the measurement apparatus can shape the recorded coordinates.
The electrochemical window limits interpretation
Electrode material, electrolyte, solvent and experimental conditions determine a region in which useful measurements can be made without overwhelming unwanted reactions. Near the limits, solvent breakdown, electrolyte reactions or electrode surface changes may produce substantial current. These signals may not belong to the intended analyte.
If an observed wave appears near the edge of the selected potential window, describe its location and preserve any caution in the source. Do not automatically assign every feature to the named target compound. The absence of a peak beyond the tested range is also not evidence that a species never reacts; the potential simply was not explored. The scan window defines what conclusions the experiment can support.
Supporting electrolyte and solution chemistry matter
The supporting electrolyte contributes ionic conductivity and may influence interfacial behaviour, while solvent, pH and dissolved gases can affect electrochemical reactions. A voltammogram of the same nominal species may differ between aqueous acidic conditions and a nonaqueous electrolyte. Ignoring the medium can make valid datasets seem contradictory.
A translated method should preserve electrolyte identity, concentration and pH when relevant. If a figure compares different solutions, describe them explicitly rather than treating every difference as an intrinsic molecular fingerprint. This is a recurring lesson in technical language: measurements are made under conditions, not in a vacuum. The chemistry surrounding a signal is part of the meaning of the signal.
Repeated cycles can change an electrode
Running several consecutive potential cycles can alter the electrode surface, concentration profile or deposited material. The first scan may show conditioning, while later scans become more stable or develop new features. Other systems may degrade or foul with repeated cycling. The mere presence of ten curves does not guarantee ten statistically independent specimens.
Translate cycle numbers, sequence and what was held constant. If a paper shows the first and twentieth cycles, say which was which. A growing current might reflect surface activation or accumulation, but the cause requires further evidence. A shrinking current might suggest degradation or fouling, but can also have alternative explanations. Report the trend before adopting an explanation.
Anodic and cathodic branches in a simple example
Imagine an illustrative solution containing an oxidised species that can accept one electron. The potential initially sweeps toward more negative values, enabling reduction. Cathodic current increases in magnitude, reaches a peak and then changes as transport and near-surface concentration evolve. On reversal toward more positive potential, a return oxidation feature may appear if the reduced form remains available and the electrochemistry supports it.
To translate the curve, narrate those steps in order. Do not say that a line moving back proves the molecules reversed their chemical history. Instead, explain how the changed electrode potential can drive the opposite electron-transfer reaction under suitable conditions. This distinction is simple enough for a beginner and precise enough to preserve the purpose of a research figure.
A bare-electrode versus coated-electrode example
Consider two traces from a bare electrode and a coated electrode collected under nominally matched conditions. The coated electrode may show a different peak current, peak potential or charging background. A caption should identify the two traces and report the observed differences before discussing their cause. The coating may influence active area, mass transport, surface reactions or electronic properties.
A careless translation declares that a larger peak proves faster electron transfer. A better one states that the coated electrode produced a larger current response in the reported experiment and notes any supporting tests for kinetics or catalysis. If current density was used, specify the normalisation basis. This maintains a sharp distinction between evidence and interpretation without making the prose difficult to read.
Analytical detection and calibration
Cyclic voltammetry can help detect electroactive species, but a qualitative peak is not automatically a validated concentration measurement. Analytical quantification generally needs a defined response variable, blanks, calibration, suitable controls and knowledge of the measurement range. Interferences can overlap with the target response, while adsorption and electrode fouling can alter sensitivity.
When translating an analytical assay, distinguish observed redox peak from determined analyte concentration. Preserve calibration equation, units, concentration range, detection limit and any matrix qualifications stated by the source. If the paper claims a sensor responds to a species, do not rewrite that as perfect selectivity without supporting experiments. A graph can motivate a chemical claim without serving as proof of every practical performance feature.
Catalytic currents do not always form neat peak pairs
Electrocatalytic systems may produce enhanced, broad or plateau-like currents rather than the paired peaks common in introductory diagrams. A catalyst may sustain a reaction that regenerates an electroactive species or converts substrate in a coupled process. Its profile can depend on kinetics, diffusion and applied potential. Describing such a trace with an inappropriate simple reversible-couple model can mislead readers.
A translated account should use the terms actually defined by the experiment: catalytic onset, steady current, peak current or current density at a specified potential. Do not replace all of them with oxidation potential. When comparing catalysts, preserve the reference electrode, chosen current criterion and measurement conditions. This is vital for interpreting reported overpotentials and electrochemical performance.
Overpotential requires a defined reference reaction
Overpotential concerns how far an electrode operates from a relevant equilibrium or reversible potential under particular conditions. It is not simply the absolute potential printed on the horizontal axis. A catalyst paper might report the overpotential required to reach a certain current density. That numerical result depends on the reaction, reference scale, electrolyte and correction methods.
When translating the metric, do not call overpotential voltage without context. Explain what benchmark or equilibrium potential the value is measured against if the report states it. Never calculate a new overpotential from a plot unless the necessary data and conventions are available. A fluent sentence that omits the criterion can turn a meaningful comparison into an apples-to-oranges claim.
Concentration, diffusion and current are connected but not identical
In many systems, the current response depends on electroactive-species concentration and mass transport. However, higher current does not invariably mean a proportionally higher concentration. Surface area, scan rate, temperature, adsorption, background reactions and electrode state may also change the signal. The relation should be established by an appropriate model or calibration.
For a classroom explanation, compare the electrode to a place where molecules must arrive before reacting, then immediately return to the measurement’s actual terminology. Metaphors can help, but they should not imply that every molecule moves at the same speed or that a peak directly counts individual species. Technical accuracy and accessible explanation can reinforce each other when the limits of an analogy are made clear.
A useful caption begins with the experimental conditions
A technical figure caption should identify the chemical system or electrode, the relevant electrolyte, the potential reference, the scan rate and the meaning of each curve. It can then mention major anodic and cathodic features and any processing of the current. If the source omitted essential details, a translator should not fill gaps by assumption.
A caption that says red and blue curves without naming their conditions is difficult to interpret and inaccessible to readers who cannot see colour. Use sample labels, cycle numbers or rate values instead. A clear caption makes the scientific comparison portable beyond a particular visual presentation and reduces the chance of contradictory interpretations in later summaries.
Build an accessible description in layers
Start with a short overview: a current-versus-potential plot with a forward and return sweep showing labelled electrochemical features. Then give the potential axis direction and reference electrode, current units, scan sequence, switching point and principal peak positions. A longer description can explain relative differences between curves or cycles and note which peak assignments are tentative.
Do not begin a screen-reader description by reading dozens of coordinate pairs with no context. Give the listener the structure before the details. Nor should the description invent chemistry that the graph does not establish. If no scan arrows are shown and the method is unavailable, explain that the sweep sequence cannot be determined from the supplied image alone.
International number and symbol verification
Negative potential signs, decimals and units such as V, mV/s, µA, mA and mA/cm² are central to the meaning of a voltammogram. A lost minus sign can reverse the relative electrode condition. A missing denominator can turn current density into total current. When text moves across languages with different decimal conventions or writing directions, the risk of silent corruption increases.
Create a side-by-side record of original and translated values. Check the reference scale, scan limits, peak coordinates, current-density basis and rate. Inspect the final layout, especially in right-to-left contexts, where symbol order may change around parentheses or Latin abbreviations. The last review should evaluate numeric meaning, not merely whether the translated sentences sound natural.
Build a redox vocabulary network
A practical glossary can connect potential, reference electrode, scan rate, current, current density, oxidation, reduction, anodic, cathodic, forward scan, reverse scan, peak current, peak potential, charge, diffusion, reversibility, overpotential and uncompensated resistance. Group words by concept instead of learning them as disconnected dictionary entries.
Some languages lack a concise everyday expression for formal potential or nonfaradaic current. A short explanatory phrase may be preferable to an inaccurate familiar word. Consistent terminology matters especially in figures where symbols, legends and captions must match. The purpose of vocabulary study is to let readers reconstruct the physical relationship without having to reverse-engineer the translator’s wording.
Common translation errors and their repairs
One error equates moving right with increasing potential even when the axis is reversed. Correct it by reading tick values. Another calls the switching point a chemical peak. Correct it by separating the programme from the response. A third reports peak current as total charge; correct it by distinguishing current from its time integral. A fourth removes the reference-electrode label; restore it.
A fifth describes every large current as fast intrinsic electron-transfer kinetics, ignoring transport or area. A sixth says a missing return peak proves chemical destruction without alternative explanations. A seventh changes a reported current density into a total current. These errors illustrate one principle: preserving each independent quantity and its context usually prevents a chain of larger interpretive mistakes.
Read absence of a peak with appropriate caution
Not observing a peak can have many meanings. The relevant potential may not have been reached, the species may have reacted too slowly, its signal may be below detection, an interfering reaction may mask it, or the electrode could have changed. The absence of a feature from one voltammogram is therefore not the same as proof that a molecule cannot undergo the corresponding electrochemical reaction.
A good translation reports that no discernible peak was observed over the investigated potential window under the stated conditions. This does not weaken the scientific message; it states precisely what is known. It is particularly important for learners, who may otherwise infer an overly broad chemical rule from one instrument screenshot.
Translation for teaching versus publication
A beginner may need a one-paragraph explanation of why current rises and falls during a sweep. A research reader may need exact potentials, scan rates, correction methods and uncertainty. Both can receive accurate descriptions if the author separates a short conceptual explanation from the detailed conditions. Simplifying the reading path does not require deleting all the terms that make the data meaningful.
In a teaching version, introduce the potential programme before the current response. In a publication caption, supply reference electrode and units from the outset. In a multilingual report, keep a glossary to prevent variants from appearing in different sections. In an accessible description, narrate the curve’s time order. These are different presentations of one experiment, not separate claims about what the experiment showed.
A verification exercise for students and editors
Take a CV figure and conceal its title. From the axes alone, identify potential reference, current units, numerical orientation and displayed limits. Then inspect the method to reconstruct the initial scan and reversal. Only after that should you label electrochemical features. Finally, compare your interpretation with the figure legend and results paragraph to identify any unsupported assumptions you made.
Repeat the exercise with a second graph whose potential axis is reversed. Notice which statements change and which scientific relationships remain the same. This practice builds transferable skill because it forces the reader to distinguish a drawing convention from a measurement. It also trains the attention required for translating other visual scientific information accurately.
What to check before publishing a translation
Verify electrode and sample names, electrolyte, reference system, potential direction, initial sweep, switching potential, current sign, scan rate and number of cycles. Check whether signals were normalised, smoothed or baseline-corrected. Read every peak value against the original source and compare figure labels with any results table. Preserve the difference between an observed current response and a proposed reaction mechanism.
Then ask a second reader to reconstruct the scan from the translated text alone. Can they identify the axes, explain which way the potential moved and distinguish peak positions from experimental boundaries? If not, revise. Automated translation tools can make an initial draft, but the last review should focus on scientific meaning, numeric integrity and visible uncertainty. Fluency is not sufficient evidence of accuracy.
Questions readers often ask
Does the highest peak mean the fastest reaction? Not necessarily: current depends on mass transport, concentration and surface conditions as well as kinetics. Does a forward scan always oxidise the sample? No, it depends on sweep direction and system. Does the return branch prove the chemical reaction reverses? No, the signal needs interpretation. Can identical numerical potentials be compared if the reference electrodes differ? Not without a justified scale conversion.
Is scan rate measured in amperes? No, it measures change of potential with time. Is current density the same as total current? No. Can a curve identify every molecule present? No, responses can overlap. Can a large catalytic current prove better catalyst quality without checking conditions? No. These basic questions help readers distinguish a direct measurement from a tempting but unjustified conclusion.
Related learning routes and authoritative references
The American Chemical Society beginner’s guide to cyclic voltammetry gives a detailed introduction to electrochemical sweep sequences, diffusion and peak behaviour. The Ossila cyclic voltammetry guide discusses common sign and peak conventions. On eduKateSG, the article about cyclic voltammetry and electrode-reaction evidence supplies another scientific explanation.
Readers working on technical language can explore the science learning hub, the translation verification and bilingual quality-assurance guide, and the guide to learning technical vocabulary through roots and word families. Related visual-data translation topics include calibration curves and fluorescence excitation–emission maps.
The final principle
To translate a cyclic voltammogram, begin with the reference electrode and the actual potential sweep rather than the visual direction of the line. Identify current and current density correctly. Keep peak values separate from switching points, distinguish anodic and cathodic responses, and recognise that transport, charging and chemical processes can all influence the trace. Every mechanistic claim should remain matched to its evidence.
When these relationships survive the language change, the reader can understand the experiment without seeing the original plot or repeating its measurements. Good technical translation is not a new interpretation disguised as clearer prose. It is the same measured meaning made accessible to another person.