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Chem Res Toxicol
February 1992
Biological and Medical Research Division, Argonne National Laboratory, Illinois 60439-4833.
Qualitative and quantitative analysis of human hemoglobin-carcinogen adducts has potential as a diagnostic tool for estimation of biologically effective levels of carcinogen exposure and for attaining a better understanding of individual susceptibility to chemical carcinogenesis. The purpose of this study was to devise a strategy for preanalytical enrichment of the class of covalent human hemoglobin-carcinogen adducts formed by reaction at the hemoglobin beta 93 cysteine sulfhydryl groups. The results define a charge-shift strategy in which a mixture composed of natural hemoglobin (Hb-SH) and low levels of hemoglobin-S-xenobiotic adducts (Hb-SX) is treated with an anionic sulfhydryl reagent (R-), followed by anion-exchange liquid chromatographic separation of Hb-SR- from the unreactive Hb-SX adducts.
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