Analytical Suite Metadata

Bondar Clegg (stream sediment) AAS (As; hydride evolution)



Bondar Clegg, stream sediment; atomic absorption spectroscopy (arsenic; hydride evolution)

General Methodology:

A 1 gram sample was reacted with 3 ml concentrated HNO3 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 30 minutes with periodic shaking.  1 ml concentrated HCl was added and heating was continued for another 90 minutes.  The sample 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).

Reference:

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.

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Spectroscopy >> Electromagnetic radiation >> Visible-ultraviolet >> Atomic >> Absorption >> Hydride

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> Aqueous dissolution >> Acid >> Moderate Acid >> Aqua Regia (s.l.)

Children

Aqua Regia (s.s.) | Lefort | Aqua Regia (Acme/BVM) | Aqua regia (NGR) | Aqua regia (NASGLP)


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  1008     As_AAS  1

Associated Analytical Packages:

IndexPackage IDPackage Name
1  309     Bondar Clegg (NGR BC stream sediment) AAS (8+6), Ba (XRF), CVAAS (Hg), W, LOI, F, U(10**12)
2  403     Bondar Clegg (NGR stream sediment) AAS (8+5), CVAAS (Hg), COL(W), U
3  412     Bondar Clegg (NGR stream sediment) AAS (8+7), CVAAS (Hg),W, LOI, F, U
4  422     Bondar Clegg (NGR stream sediment) AAS (8+6), Ba (HClO4 only), CVAAS (Hg), W, LOI, F, U(10**12)
5  426     Bondar Clegg (NGR stream sediment) AAS (8+6), DCP (Ba), CVAAS (Hg), W, LOI, F, U
6  427     Bondar Clegg (NGR stream sediment) AAS(8+6), DCP (Ba), CV(Hg), COL (W), LOI at 500°C, F, U
7  439     Bondar Clegg (NGR stream sediment) AAS(8+6), CV(Hg), LOI, F, U
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