Abstract
A fast, automated and inexpensive screening-test for recognizing heavy metal contamination in water samples is described to avoid costly and time-consuming determination by atomic absorption spectrometry. The test is based on the reaction of Cd 2+, Co 2+, Cu 2+, Ni 2+, Pb 2+ and Zn 2+ with dithizone at pH 6 and the extractive photometric determination in a flow injection system. The test was developed for drinking, surface and waste water and was verified with a large number of real samples.
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