Analytical Suite Metadata
Chemex AAS (As; hydride evolution) 6ml decomp: 4 HNO3 1 HCL
Chemex, atomic absorption spectroscopy - hydride evolution (arsenic) 6ml decomp: 4 HNO3 1 HCL
A 1 gram sample was reacted with 6 ml of a mixture of 4 M HNO3 and M HCl in a test-tube overnight at room temperature. After digestion, the test-tube was immersed in a hot water bath at room temperature and brought up to 90oC and held at this temperature for 2 hours with periodic shaking. The sample solution was then diluted to 20 ml with metal free water and mixed.
The element was determined by atomic absorption using a hydride evolution method wherein the hydride (AsH3 or SbH3) is evolved and passed through a heated quartz tube in the light path of an atomic absorption spectrophotometer. The method is described by 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: unstated
Aqua regia (NGR-S) | Aqua regia (NGR-L) | Aqua regia (NGR-S, no details) | Aqua regia (NGR-L, no details) | Aqua regia (NGR-LS) | Aqua regia (NGR-S, alternate) | Aqua regia (NGR-L, alternate) | Aqua regia (NGR-S, BC)
|Index||Method Order||Method ID||Quantity||Detection Limit|
Associated Analytical Packages:
|Index||Package ID||Package Name|
|1||416||Chemex (NGR lake sediment) AAS (8+5), CVAAS (Hg), COL(W), LOI, NADNC (U-5**10)|
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