Method and system for voltammetric characterization of a liquid sample

Method for voltammetric characterization of a liquid sample, using a voltammetric setup comprising at least two working electrodes (E1-E4) and a counter electrode (30) that are placed in contact with the liquid sample (20), the method comprising the steps of:

• a. applying a first potential (P1) on all working-electrodes (E1-E4),
• b. performing a number of voltammetric cycles according to a predetermined pulse-sequence, each comprising the steps of:
• i. applying a second potential (P2) on the counter electrode (30) according to the pulse-sequence,
• ii. performing a predetermined number of measurement procedures, each comprising the steps of:
• removing said applied first potential (P1) from all but one of the working electrodes (E1-E4),
• registering the current passing through the working electrode (E1-E4) still having said first potential applied thereto,
• storing the registered value in a data storage unit (80),
• applying the first potential (P1) on all working electrodes (E1-E4), and
• c. analyzing said stored values using a predetermined mathematical model to produce a result.