Analytical Suite Metadata

GSC (stream sediments) AAS (Ba; nitrous oxide-acetylene using a multi-acid total digestion)



Geological Survey of Canada, stream sediments; atomic absorption spectroscopy (Ba; nitrous oxide-acetylene)

General Methodology:

Ba was determined by atomic absorption spectrophotometry after decomposition with a multi-acid total digestion.  A 500 mg sample was leached over a period of 4 hours using a 5 ml aliquot of HF-HCl-HNO3-HClO4 acid mixture (ratio 1:1:1:1).  A final solution of 5% HCl was made up to a volume of 20 ml. Ba was atomized using a nitrous oxide-acetylene flame.

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Spectroscopy >> Electromagnetic radiation >> Visible-ultraviolet >> Atomic >> Absorption >> Flame >> C2H2/N2O

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> Aqueous dissolution >> Acid >> Strong Acid >> 4 ACID

Children

4-acid (Acme)


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  1155     Ba_AAS  0.02

Associated Analytical Packages:

IndexPackage IDPackage Name
1  381     GSC (stream sediments) AAS (As+ Sb+Cd+Ba), CVAAS (Hg), COL(P2O5)
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