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    熊丽蓓, 卢大胜, 戴艺, 冯超, 林元杰, 张昀. 水中双酚A和烷基酚聚氧乙烯醚降解物的GC-MS测定方法研究[J]. 环境卫生学杂志, 2013, 3(6): 566-570, 574.
    引用本文: 熊丽蓓, 卢大胜, 戴艺, 冯超, 林元杰, 张昀. 水中双酚A和烷基酚聚氧乙烯醚降解物的GC-MS测定方法研究[J]. 环境卫生学杂志, 2013, 3(6): 566-570, 574.
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    Xiong Libei, Lu Dasheng, Dai Yi, Feng Chao, Lin Yuanjie, Zhang Yun. Determination of Bisphenol A and Degraded Compounds of Alkylphenol Ethoxylates in Water by Gas Chromatograph-Mass Spectrometry[J]. Journal of Environmental Hygiene, 2013, 3(6): 566-570, 574.
    Citation: Xiong Libei, Lu Dasheng, Dai Yi, Feng Chao, Lin Yuanjie, Zhang Yun. Determination of Bisphenol A and Degraded Compounds of Alkylphenol Ethoxylates in Water by Gas Chromatograph-Mass Spectrometry[J]. Journal of Environmental Hygiene, 2013, 3(6): 566-570, 574.
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    水中双酚A和烷基酚聚氧乙烯醚降解物的GC-MS测定方法研究

    Determination of Bisphenol A and Degraded Compounds of Alkylphenol Ethoxylates in Water by Gas Chromatograph-Mass Spectrometry

      摘要
    • 摘要:
      目的 建立水中烷基酚聚氧乙烯醚(APEOs)降解物(NP、OP、NP1EO、NP2EO、OP1EO和OP2EO)和双酚A(BPA)的GC-MS检测方法。
      方法 样品经盐酸酸化、二氯甲烷微液液萃取(micro-LLE)、浓缩、BSTFA硅烷化处理和正己烷定容后进行GC-MS分析。
      结果 标准物浓度在10~200μg/L范围内, 本方法线性关系良好(R2度大于等于0.9992);方法的检测限为1.39~5.34 ng/L; 加标(20和100 ng/L)回收率为85%~105%, 日间偏差小于等于6%;在2个月的饮用水监测实际应用中, 内分泌干扰物(EDCs)检出率为100%, 各个EDCs的暴露水平为0.5~90 ng/L。
      结论 该方法灵敏度高、选择性好、操作简单且成本较低, 可以在常规实验室条件下满足水样中该类的分析要求。

       

      Abstract:
      Objectives A method for the determination of Bisphenol A and degraded compounds of alkylphenol ethoxylates (NP, OP, NP1EO, NP2EO, OP1EO and OP2EO) in water was developed by using GC-MS.
      Methods After acidification with concentrated hydrochloric acid and addition of 4-nonlphenol and 4-nonylphenol monoethoxylate as internal standards, the water sample was subsequently extracted with dichloromethane. After concentrated, the target analytes were converted to their derivatives by using BSTFA and then were performed chromatographic separation and detection with GC-MS.
      Results Good dynamic linearities were obtained in the range of investigated concentration (10~200 μg/L) with R2≥0.9992. The method detection limits (MDLs) were in the range of 1.39~5.34 ng/L. The interday (n=5) and intraday (n=5) recoveries at two spiking concentrations (20 and 100 ng/L) were in the range of 85%~105%, and the RSDs were less than 6.5% for all target analytes. The monitoring of drinking water samples collected from Shanghai Municipality showed a detected rate of 100% and an exposure concentration in the range of 0.5~90 ng/L for various analytes.
      Conclusions The method has been proved to be rapid, robust and feasible for the requirement of analysing trace amount of these compounds in water with low cost and less labor and time consumption.

       

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