Quantofix Arsenic test kits and reagents for the semi-quantitative determination of arsenic in solutions

Quantofix Arsenic 10 has a gradation of scale: 0-0.01-0.025-0.05-0.1-0.5 ppm.

The addition of zinc and a solid acid results in the formation of arsine from any arsenic compounds in the sample solution. Arsine reacts in the gaeous phase with the mercury bromide in the reaction zone of the test stick to form mixed arsenic/mercury halides, which, depending on the concentration, are colored yellow to brown.