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首页> 外文期刊>Environmental Science & Technology >Biomonitoring of Mercury Exposure with Single Human Hair Strand
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Biomonitoring of Mercury Exposure with Single Human Hair Strand

机译：人类单发汞接触生物监测

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摘要

Hair samples continue to be used extensively for biomonitoring of mercury (Hg) exposure.Routine methods require a bundle of 100-150 hair strands and involve chemical digestion.Recently,Hg analyzers that combine combustion,gold amalgamation,and atomic absorption spectrometry (C-GA-AAS) became commercially available.This method was shown to provide quick and sensitive measurements in solid samples such as hair.The objective of this study was to validate C-GA-AAS for measuring total Hg in single hair strands as an alternative method for Hg biomonitoring.Hair samples from 12 women with a wide range of Hg exposure were obtained from two projects conducted in Brazil and Canada.A 1:1 relationship was observed between C-GA-AAS and the established cold vapor atomic absorption spectrometry (CV-AAS) for analysis of 1-cm segments from a bundle of hair.For individual hair variability,the average relative standard deviation (RSD) of Hg between hair strands was 6.5 ± 2.8%,thus justifying the use of single hair strand for biomonitoring.With a limit of quantification of 0.10 ng of total Hg,a single hair strand can be used to assess monthly exposure.This technique will facilitate routine biomonitoring and thus help prevent Hg poisoning among the public.
机译：头发样本仍被广泛用于生物监测汞（Hg）的暴露。常规方法需要一捆100-150根发束并涉及化学消化。最近，结合了燃烧，金汞齐和原子吸收光谱法（C- （GA-AAS）可以从市场上买到，该方法显示出可以对头发等固体样品进行快速灵敏的测量。本研究的目的是验证C-GA-AAS用于测量单根发丝中的总Hg的替代方法。从巴西和加拿大的两个项目中获得了来自12个汞接触范围广泛的女性的头发样本，C-GA-AAS与已建立的冷蒸气原子吸收光谱法（CV）之间存在1：1的关系。 -AAS）分析一束头发的1厘米部分。对于单个头发变异性，发束之间Hg的平均相对标准偏差（RSD）为6.5±2.8％，因此可以使用s用于监测的单股发丝.Hg总量的定量限制为0.10 ng，可以使用单根发丝评估每月的暴露量，该技术将有助于常规的生物监测，从而有助于防止公众中的Hg中毒。

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  • 来源
    《Environmental Science & Technology》 |2005年第12期|p.4594-4598|共5页
  • 作者

    MELISSA LEGRAND; CARLOS JOSE SOUSA PASSOS; DONNA MERGLER; KING MAN CHAN;

  • 作者单位

    Centre for Indigenous Peoples' Nutrition and Environment and School of Dietetics and Human Nutrition,McGill University,Macdonald Campus,21,111 Lakeshore Road,St-Anne-de-Bellevue,Quebec,Canada H9X 3V9,and Centre d'etudes des interactions biologiques e;

    Centre for Indigenous Peoples' Nutrition and Environment and School of Dietetics and Human Nutrition,McGill University,Macdonald Campus,21,111 Lakeshore Road,St-Anne-de-Bellevue,Quebec,Canada H9X 3V9,and Centre d'etudes des interactions biologiques e;

    Centre for Indigenous Peoples' Nutrition and Environment and School of Dietetics and Human Nutrition,McGill University,Macdonald Campus,21,111 Lakeshore Road,St-Anne-de-Bellevue,Quebec,Canada H9X 3V9,and Centre d'etudes des interactions biologiques e;

    Centre for Indigenous Peoples' Nutrition and Environment and School of Dietetics and Human Nutrition,McGill University,Macdonald Campus,21,111 Lakeshore Road,St-Anne-de-Bellevue,Quebec,Canada H9X 3V9,and Centre d'etudes des interactions biologiques e;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
  • 关键词

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