What forms of arsenic do the arsenic test kits measure?
Arsenic forms measured by test kits catalog number 2800000 (low-range) and 2822800 (EZ-Arsenic high range)
The arsenic test kits Arsenic, Low Range Test Kit (catalog number 2800000) and EZ Arsenic, High Range Test Kit (catalog number 2822800) measure inorganic arsenic in the +3 and +5 oxidation states. Not detected are organic arsenic compounds, such as dimethylarsenic acid. To measure total arsenic, including inorganic and organic arsenic, the EZ-Arsenic high range test kit instructions include information on digesting the sample; digested results would include organic arsenic.