Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Explain in detail anodic stripping voltammetry.(short question)
Accepted Answer
Anodic stripping voltammetry (ASV) is an electroanalytical technique used to determine the concentration of trace metals in a sample. It involves two steps:
1. Electrodeposition: The analyte metal ions are deposited onto a working electrode (often a hanging mercury drop electrode or a thin-film mercury electrode) by applying a negative potential. This process reduces the metal ions to their metallic form, which accumulates on the electrode surface.
2. Stripping: The potential is then scanned in a positive direction. As the potential becomes more positive, the deposited metal is oxidized and stripped back into solution. The current generated during this stripping process is proportional to the amount of metal deposited, and therefore to the original concentration of the metal in the sample.
ASV is highly sensitive and can be used to determine the concentration of metals at the parts-per-billion (ppb) or even parts-per-trillion (ppt) levels. It is a versatile technique that can be applied to a wide range of samples, including environmental samples, biological samples, and industrial samples.
Articles you might like