Mercury Analysis in Water - The purity of your chemicals

http://mercuryanalyser.com/mercury-instrument/problems-of-interferences-using-vapour-generation-atomic-fluorescence-spectrometry-mercury-analysers/ In order to measure the mercury levels in your sample correctly and reliably, the mercury level in your reagents should be at least less than half of the mercury concentrations in the sample. For water analysis, mercury is usually found at 1 ng per litre level, which means the mercury background value in all the chemical we use combined needs to be less than 0.5 ng per litre. That shows the purity of the chemical is absolutely critical for mercury analysis in water samples.