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首页> 外文期刊>Environmental Science & Technology >Quantitative Determination of Perfluorochemicals and Fluorotelomer Alcohols in Plants from Biosolid-Amended Fields using LC/MS/MS and GC/MS
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Quantitative Determination of Perfluorochemicals and Fluorotelomer Alcohols in Plants from Biosolid-Amended Fields using LC/MS/MS and GC/MS

机译：使用LC / MS / MS和GC / MS定量测定生物固体修正田中植物中的全氟化合物和氟代端基醇

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摘要

Analytical methods for determining perfluorochemicals (PFCs) and fluorotelomer alcohols (FTOHs) in plants using liquid chromatography/tandem mass spectrometry (LC/MS/MS) and gas chromatography/mass spectrometry (GC/MS) were developed, and applied to quantify a suite of analytes in plants from biosolid-amended fields. Dichloromethane—methano! and ethylacetate were chosen as extracting solutions for PFCs and FTOHs, respectively. Nine perfluorocarboxylic acids (PFCAs), three perfluorosulfonic acids (PFSAs), and ten FTOHs were monitored. Most PFCAs and perfluorooctanesulfonate (PFOS) were quantifiable in plants grown in contaminated soils, whereas PFCs went undetected in plants from two background fields. Perfluorooctanoic acid (PFOA) was a major homologue (~10—200 ng/g dry wt), followed by perfluorodecanoic acid (~3— 170 ng/g). [PFOS] in plants (1—20 ng/g) generally was less than or equal to most [PFCAs]. The site-specific grass/soil accumulation factor (GSAF = [PFC]Grass/[PFC]soil) was calculated to assess transfer potentials from soils. Perfluorohexanoic acid had the highest GSAF (= 3.8), but the GSAF decreased considerably with increasing PFCA chain length. Log-transformed GSAF was significantly correlated with the PFCA carbon-length (p < 0.05). Of the measured alcohols, 8:2nFTOH was the dominant species (< 1.5 ng/g), but generally was present at > lOx lower concentrations than PFOA.
机译：开发了使用液相色谱/串联质谱法（LC / MS / MS）和气相色谱/质谱法（GC / MS）测定植物中全氟化合物（PFC）和氟代端醇（FTOH）的分析方法，并将其用于定量分析生物固体改良领域中植物中分析物的分析二氯甲烷-甲烷！分别选择乙酸乙酯和乙酸乙酯作为PFC和FTOH的提取溶液。监测了九种全氟羧酸（PFCA），三种全氟磺酸（PFSA）和十种FTOH。在污染土壤中生长的植物中，大多数PFCA和全氟辛烷磺酸盐（PFOS）均可定量，而在两个背景田地的植物中未检出PFC。全氟辛酸（PFOA）是主要的同源物（〜10-200 ng / g干重），其次是全氟癸酸（〜3-170 ng / g）。植物中的[PFOS]（1-20 ng / g）通常小于或等于大多数[PFCA]。计算了特定地点的草/土壤累积因子（GSAF = [PFC]草/ [PFC]土壤），以评估土壤的迁移潜力。全氟己酸的GSAF最高（= 3.8），但随着PFCA链长度的增加，GSAF明显降低。对数转化的GSAF与PFCA碳长度显着相关（p <0.05）。在测得的醇中，8：2nFTOH是主要物质（<1.5 ng / g），但通常以比PFOA低10倍的浓度存在。

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  • 来源
    《Environmental Science & Technology》 |2011年第19期|p.7985-7990|共6页
  • 作者

    Hoon Yoo; John W. Washington; Thomas M. Jenkins; J. Jackson Ellington;

  • 作者单位

    National Research Council (NRC);

    Ecosystems Research Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605;

    Senior Service America (SSA);

    Ecosystems Research Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605;

  • 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);
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