An attempt to prepare and characterize a soil reference material for Cr(VI) and Cr(III) |
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| Authors: | G. Solano S. A. Katz J. Holzbecher A. Chatt |
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| Affiliation: | (1) Department of Chemistry, Rutgers University, 08102-1205 Camden, NJ, (USA);(2) Department of Chemistry, Dalhousie University, B3H4J1 Halifax, N. S., (Canada) |
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| Abstract: | Reference materials for the speciation and quantification of chromium in contaminated soils were prepared by impregnating diatomaceous earth with BaCrO4 and Cr2O3. The chronium concentrations of these materials were confirmed to be 200 mg/kg both by atomic absorption spectrometry and by instrumental neutron activation analysis, but monthly assays over two calendar quarters of the reference material impregnated with BaCrO4 revealed the hexavalent chromium was not stable in this matrix. |
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