头发中汞的化学形态：应用 X 射线吸收光谱法的研究。
The chemical forms of mercury in human hair: a study using X-ray absorption spectroscopy.
机构信息
Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK, Canada.
出版信息
J Biol Inorg Chem. 2010 Jun;15(5):709-15. doi: 10.1007/s00775-010-0638-x. Epub 2010 Mar 12.
Abstract
Human hair is frequently used as a bioindicator of mercury exposure. We have used X-ray absorption spectroscopy to examine the chemical forms of mercury in human hair samples taken from individuals with high fish consumption and concomitant exposure to methylmercury. The mercury is found to be predominantly methylmercury-cysteine or closely related species, comprising approximately 80% of the total mercury, with the remainder an inorganic thiolate-coordinated mercuric species. No appreciable role was found for selenium in coordinating mercury in hair.
摘要
头发常被用作汞暴露的生物指示剂。我们利用 X 射线吸收光谱，检测了高鱼摄入量人群头发样本中的汞化学形态，这些人同时接触甲基汞。结果表明，头发中的汞主要以甲基汞-半胱氨酸或相关形态存在，占总汞的 80%左右，其余为无机硫醇配位的二价汞。头发中并未发现硒在汞配位中起重要作用。
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