溶剂解吸气相色谱法测定空气中21种挥发性卤代烃的方法改进
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摘要
改进了利用活性炭吸附-二硫化碳解吸-气相色谱/电子捕获检测器(GC/ECD)测定环境空气中反式-1,2-二氯乙烯、1,1-二氯乙烷、顺式-1,2-二氯乙烯、三氯甲烷、1,1,1-三氯乙烷、四氯化碳、1,2-二氯乙烷、三氯乙烯、1,2-二氯丙烷、1-溴-2-氯乙烷、1,1,2-三氯乙烷、四氯乙烯、氯苯、三溴甲烷、1,1,2,2-四氯乙烷、1,2,3-三氯丙烷、1,3-二氯苯、1,4-二氯苯、苄基苯、1,2-二氯苯、六氯乙烷这21种挥发性卤代烃的分析方法。所建立的方法在一定浓度范围内工作曲线线性良好,相关系数均在0.995 7~0.999 9之间,加标回收率在80.4%~113.3%之间,RSD为1.0%~6.6%,检出限为6.17~29.25μg/m3。所建立的方法操作简便、分析快速、灵敏度高,且具有较好的精密度与准确性。
This work improved a method of determining 21 kinds of volatile halogenated hydrocarbons including trans-1,2-dichloroethylene,1,1-dichloroethane,cis-1,2-dichloroethylene,chloroform,1,2-ichloroethane,1,1,1-trichloroethane,carbon tetrachloride,1,2-dichloropropane,trichloroethylene,1-bromo-2-chloroethane,1,1,2-trichloroethane,tetrachloroethylene,chloro-benzene,bromoform,1,1,2,2-tetrachloroethane,1,2,3-trichloropropane,benzyl chloride,1,4-dichlorobenzene,1,2-dichlorobenzene,1,3-dichlorobenzene,hexachloroethane in environmental air by activated charcoal adsorption/carbon disulfide desorption and gas chromatographic( GC/ECD).The curves of the method have a good linearity in a certain range of concentration with correlation coefficient of 0. 995 7 ~ 0. 999 9. The recovery ratios were 80. 4% ~ 113. 3% and the RSD was 1. 0% ~ 6. 6%. Using this method,the range of the lowest detection limits for 21 kinds of volatile halogenated hydrocarbons was 6. 17 ~ 29. 25 μg/m3.The method is simple operation,rapid analysis,high accuracy and sensitivity.
This work improved a method of determining 21 kinds of volatile halogenated hydrocarbons including trans-1,2-dichloroethylene,1,1-dichloroethane,cis-1,2-dichloroethylene,chloroform,1,2-ichloroethane,1,1,1-trichloroethane,carbon tetrachloride,1,2-dichloropropane,trichloroethylene,1-bromo-2-chloroethane,1,1,2-trichloroethane,tetrachloroethylene,chloro-benzene,bromoform,1,1,2,2-tetrachloroethane,1,2,3-trichloropropane,benzyl chloride,1,4-dichlorobenzene,1,2-dichlorobenzene,1,3-dichlorobenzene,hexachloroethane in environmental air by activated charcoal adsorption/carbon disulfide desorption and gas chromatographic( GC/ECD).The curves of the method have a good linearity in a certain range of concentration with correlation coefficient of 0. 995 7 ~ 0. 999 9. The recovery ratios were 80. 4% ~ 113. 3% and the RSD was 1. 0% ~ 6. 6%. Using this method,the range of the lowest detection limits for 21 kinds of volatile halogenated hydrocarbons was 6. 17 ~ 29. 25 μg/m3.The method is simple operation,rapid analysis,high accuracy and sensitivity.
引文
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[3]国家环境保护总局和空气和废气监测分析方法编委会.空气和废气监测分析方法(第四版增补版)[M].北京:中国环境科学出版社,2007.
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[7]大连市环境监测中心,环境保护部环境标准研究所.HJ 645—2013环境空气挥发性卤代烃的测定活性炭吸附-二硫化碳解吸/气相色谱法[S].北京:中国环境科学出版社,2013.
[8]李亮.热脱附-气相色谱-质谱法测定环境空气中5种挥发性卤代烃[J].环境科学与管理,2013,38(6):158-161.
[9]顾海东.吹扫捕集—气相色谱法测定水中挥发性卤代烃和氯苯[J].环境监测管理与技术,2002,14(6):23-25.
[10]四川省疾病预防控制中心,上海市疾病预防控制中心,青岛市疾病预防控制中心,等.GBZ/T 160.45-2004工作场所空气有毒物质测定卤代烷烃类化合物[S].北京:中国标准出版社,2004.
[11]The United States Environmental Protection Agency(USEPA).EPA TO-14A.Determination of volatile organic compounds(VOCs)in ambient air using specially prepared canisters with subsequent analysis by gas chromatography[S].USA:Environmental Protection Agency,1999.
[12]The United States Environmental Protection Agency(USEPA).EPA TO-17.Determination of volatile organic compounds in ambient air using active sampling onto sorbent tubes[S].USA:Environmental Protection Agency,1999.
[13]The United States Environmental Protection Agency(USEPA).EPA TO-2.Method for the determination of volatile organic compounds in ambient air by carbon molecular sieve adsorption and gas chromatography/mass spectrometry(GC/MS)[S].USA:Environmental Protection Agency,1984.
[14]大连市环境监测中心.HJ 584—2010环境空气苯系物的测定活性炭吸附/二硫化碳解吸-气相色谱法[S].北京:中国环境科学出版社,2010.
[15]张倩,张吉喆.气相色谱法测定室内空气中挥发性卤代烃[J].中国环境管理干部学院学报,2014,(5):62-64.
[2]周雯,房超.气相色谱-质谱法测定工作场所空气中的5种卤代烃[J].化学分析计量,2016,25(5):64-67.
[3]国家环境保护总局和空气和废气监测分析方法编委会.空气和废气监测分析方法(第四版增补版)[M].北京:中国环境科学出版社,2007.
[4]ISO/TC 146.ISO 9486-1991.Workplace air-Determination of vaporous chlorinated hydrocarbons-Charcoal tube/solvent desorption/gas chromatographic method[S].International Organization for Standardization,1991.
[5]The United States Environmental Protection Agency(USEPA).EPA TO-1.Method for the determination of volatile organic compounds in ambient air using tenax adsorption and gas chromatography/mass spectrometry(GC/MS)[S].USA:Environmental Protection Agency,1984.
[6]张莘民,徐朝.气相色谱法测定环境空气中的卤代烃[J].中国环境监测,2000,16(s1):60-62.
[7]大连市环境监测中心,环境保护部环境标准研究所.HJ 645—2013环境空气挥发性卤代烃的测定活性炭吸附-二硫化碳解吸/气相色谱法[S].北京:中国环境科学出版社,2013.
[8]李亮.热脱附-气相色谱-质谱法测定环境空气中5种挥发性卤代烃[J].环境科学与管理,2013,38(6):158-161.
[9]顾海东.吹扫捕集—气相色谱法测定水中挥发性卤代烃和氯苯[J].环境监测管理与技术,2002,14(6):23-25.
[10]四川省疾病预防控制中心,上海市疾病预防控制中心,青岛市疾病预防控制中心,等.GBZ/T 160.45-2004工作场所空气有毒物质测定卤代烷烃类化合物[S].北京:中国标准出版社,2004.
[11]The United States Environmental Protection Agency(USEPA).EPA TO-14A.Determination of volatile organic compounds(VOCs)in ambient air using specially prepared canisters with subsequent analysis by gas chromatography[S].USA:Environmental Protection Agency,1999.
[12]The United States Environmental Protection Agency(USEPA).EPA TO-17.Determination of volatile organic compounds in ambient air using active sampling onto sorbent tubes[S].USA:Environmental Protection Agency,1999.
[13]The United States Environmental Protection Agency(USEPA).EPA TO-2.Method for the determination of volatile organic compounds in ambient air by carbon molecular sieve adsorption and gas chromatography/mass spectrometry(GC/MS)[S].USA:Environmental Protection Agency,1984.
[14]大连市环境监测中心.HJ 584—2010环境空气苯系物的测定活性炭吸附/二硫化碳解吸-气相色谱法[S].北京:中国环境科学出版社,2010.
[15]张倩,张吉喆.气相色谱法测定室内空气中挥发性卤代烃[J].中国环境管理干部学院学报,2014,(5):62-64.