Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Determining the practical quantitation level for arsenic
Laboratories using current, approved analytical methods can quantify arsenic in drinking water as low as 4 μg/L.
In light of the fact that the maximum contaminant level (MCL) for arsenic is likely to be lowered significantly, the purpose of this study was to assess the capabilities of laboratories for arsenic analysis by atomic absorption spectrometry at concentrations near those being considered for the revised MCL. The evaluation involved 22 laboratories and used four representative drinking water matrixes to determine a practical quantitation level (PQL) for arsenic, which could be used by the US Environmental Agency in setting the new MCL. Samples were spiked with arsenic at concentrations ranging from 1 to 10 μg/L. On an interlaboratory basis, analytical precision and bias changed markedly at concentrations <4 μg/L, setting a lower limit to the PQL of 4 μg/L. Reliable quantitation levels were also determined.
Determining the practical quantitation level for arsenic
Laboratories using current, approved analytical methods can quantify arsenic in drinking water as low as 4 μg/L.
In light of the fact that the maximum contaminant level (MCL) for arsenic is likely to be lowered significantly, the purpose of this study was to assess the capabilities of laboratories for arsenic analysis by atomic absorption spectrometry at concentrations near those being considered for the revised MCL. The evaluation involved 22 laboratories and used four representative drinking water matrixes to determine a practical quantitation level (PQL) for arsenic, which could be used by the US Environmental Agency in setting the new MCL. Samples were spiked with arsenic at concentrations ranging from 1 to 10 μg/L. On an interlaboratory basis, analytical precision and bias changed markedly at concentrations <4 μg/L, setting a lower limit to the PQL of 4 μg/L. Reliable quantitation levels were also determined.
Determining the practical quantitation level for arsenic
Eaton, Andrew D. (Autor:in)
Journal ‐ American Water Works Association ; 86 ; 100-114
01.02.1994
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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