MEASUREMENT METHOD AND APPARATUS

摘要

A method and apparatus to analyse metal or metal ion content of a sample having a pre-determined volume comprising the steps of: generating a voltage, applying the voltage to the sample; detecting current flow as the voltage is applied to the sample; detecting a peak current (Ip) and corresponding voltage potential (Ep) from the applied voltage; selecting a metal present in the sample according to the values obtained by the peak detection means and the information from a metal database. Preferably a screen printed electrode is used to measure soil samples. The invention can conveniently measure metal contamination in soil samples on site.