ISSN:
1436-5073
Keywords:
mercury
;
ET-AAS
;
analysis
;
matrix reduction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract ET-AAS is investigated for the analysis of high purity mercury. Two possibilities are proposed: ET-AAS determination of trace analytes in the presence of high mercury concentrations or after matrix separation by reduction. The ET-AAS analysis of high-purity mercury under optimal instrumental parameters permits fast and reproducible determination of 0.03 μgg−1 Al, Cd and Mn; 0.05 μgg−1 Cu, Co, Cr, Fe, Ni and Pb and 0.2 μgg−1 V. Preliminary mercury matrix reductive separation with ascorbic acid allows determination of 0.005 μgg−1 Cd, 0.02 μgg−1 Cu, Cr and Mn, 0.03 μg g−1 Co, Ni and Pb, 0.05 μg g−1 Al and Fe and 0.1 μgg−1 V, but the reproducibility is lower. The main advantage of the second procedure is that it avoids laboratory and instrument pollution with toxic mercury.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01242726
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