Merck Arsenic Test 117927 MQuant -100 Tests

The arsenic test strips are suitable for measuring arsenic in water, soil extracts, pharmaceutical products, prepared biological specimens and liquid foods. Within this MQuant Arsenic Test, test strips are used in combination with additional reagents. Arsenic is liberated from the sample by adding zinc powder, a solid acid, and – for the elimination of interfering sulfide ions – an oxidizing agent. On the reaction zone of the test strip, a yellow-brown dye is formed. The concentration of arsenic (III) and arsenic (V) are measured semi-quantitatively by visually comparing the reaction zone of the test strip with the fields of a color scale. The test strips are perfect for pre-testing a sample in an economical and quick way to estimate the arsenic concentration and a possible dilution factor before using a quantitative method such as a Spectroquant test.