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Title: Trace element analysis by spark-source mass spectrometry following preconcentration by cementation
Author: Welch, K. H.
ISNI:       0000 0001 3565 5945
Awarding Body: University of Aberdeen
Current Institution: University of Aberdeen
Date of Award: 1981
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A preconcentration procedure has been developed which at one and the same time raises the concentration of the two groups of elements, AS, Au, Cu, Os, Pb, Pd, Pt and Rh and As, Sb, Se, So, To and T1, in many natural materials above the detection limits of the spark-source mass spectrometric technique and separates them from interfering matrix elements. The technique involves the cementation of the elements from solution on amalgamated aluminium powder which can be pelleted directly to form the electrode for spark source mass spectrometric analysis. Through the use of wet oxidative digestions and oxygen flaskcombustion oxidation procedures in conjunction with the cementation procedure the above elements have been determined in a number of biological, geological and environmental samples.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Methods and equipment, general