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NGR BC AAS stream sediments and moss mats (As)
NGR British Columbia stream samples (sediments and moss mats), analysis by atomic absorption spectroscopy (AAS) for As.
Add 2 ml KI and dilute HCl to 0.8M HNO3 – 0.2M HCl. 2 ml of borohydride solution is added to produce AsH3 gas which is passed through a heated quartz tube in the light path of an atomic absorption spectrophotometer. After Aslin (1976).
Aslin, G.E.M. (1976). The determination of arsenic and antimony in geological materials by flameless atomic absorption spectrophotometer. Journal of Geochemical Exploration v6, p321-330.
Sample material: solid
Sample weight: 500 milligrams
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