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自动固相萃取—气相色谱—质谱法测定生活饮用水中60种半挥发性有机物 [中文引用][英文引用]

Determination of 60 Semi-Volatile Organic Compounds in Drinking Water Using Automatic Solid Phase Extraction-Gas Chromatography-Mass Spectrometry

作者(英文):YILIHAMU Zhayier1 2  YANG Yanwei1  ZHU Ying1  HU Xiaojian1  LU Yifu1 
单位(英文): 
分类号:R123
出版年·卷·期(页码):2020·10·第1期(81-88)
DOI:
-----摘要:-------------------------------------------------------------------------------------------

目的 提出一种同时测定生活饮用水中60种半挥发性有机物的自动固相萃取-气相色谱-质谱联用法。方法 1 L水样中加入5 mL甲醇,通过自动固相萃取装置使用LC-Florisil固相萃取柱对水样进行富集,再分别用5 mL二氯甲烷和5 mL乙酸乙酯洗脱,氮吹浓缩定容至1 mL,进样分析。结果 60种半挥发性有机物在(0.125~4.00)μg/L的含量范围内具有较好的线性,其相关系数均≥ 0.99,方法检出限为(0.002~0.06)μg/L,检测限为(0.01~0.26)μg/L,回收率范围70.8%~129%,精密度(RSD)范围0.2%~21.5%。结论 该方法实现了前处理过程自动化,具有准确度高、操作简单和溶剂使用量少等优点,适用于同时测定生活饮用水中60种半挥发性有机物。
 

-----英文摘要:---------------------------------------------------------------------------------------

Objectives To develop a method for simultaneous determination of 60 semi-volatile organic compounds in domestic drinking water using automatic solid phase extraction-gas chromatography-mass spectrometry (GC-MS). Methods 5 mL methanol was added to 1 L water sample. Then the water sample was enriched by LC-Florisil SPE using automatic solid phase extraction equipment, and was eluted with 5 mL dichloromethane and 5 mL ethyl acetate, the eluent was concentrated with nitrogen to 1 mL and determined. Results The 60 semi-volatile organic compounds showed a good linearity in the range of (0.125-4.00) μg/L, and the correlation coefficients were all more than 0.99. The method detection limits was in the range of 0.002-0.04 μg/L and the detection limits was in the range of 0.01-0.17 μg/L. The recoveries ranged from 70.8% to 129% and the relative standard deviations (RSD) ranged from 0.2% to 21.5%. Conclusions The method has realized the automatic pretreatment which has advantages of high accuracy, simple operation and less solvent. This method was suitable for simultaneous determination of 60 semi-volatile organic compounds in domestic drinking water.

 

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中文著录格式: 依力哈木·扎依尔1,2,,杨艳伟1,,朱英1,,胡小键1,,陆一夫1.自动固相萃取—气相色谱—质谱法测定生活饮用水中60种半挥发性有机物.环境卫生学杂志.2020;10(1):81-88.
英文著录格式: YILIHAMU,Zhayier1,2,,YANG,Yanwei1,,ZHU,Ying1,,HU,Xiaojian1,,LU,Yifu1.Determination of 60 Semi-Volatile Organic Compounds in Drinking Water Using Automatic Solid Phase Extraction-Gas Chromatography-Mass Spectrometry..2020;10(1):81-88.

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