固相萃取-气相色谱法同时测定水中的毒死蜱和六氯苯
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摘要
建立了一种能够同时快速测定水中六氯苯、毒死蜱的方法,利用控制变量的方法对Autosystem XL气相色谱仪的色谱柱温、检测器温度、汽化室温度条件进行选择,前处理条件比较了萃取小柱、洗脱剂的种类以及用量。试验结果表明,该方法测得的检出限分别为0.01、0.03μg/L,加标回收率为83.15%～109.6%,相对标准偏差为3.36%和7.71%,用此方法对自来水中的六氯苯、毒死蜱进行测定,耗时短,精密度好,检出限低,操作简便。
A method for simultaneous determination of hexachlorobenzene and chlorpyrifos in water was established. Temperature of the column,detector and vaporization chamber of the chromatograph Autosystem XL were determined by methods of variables control. Methods of pretreatment of water samples was determined by comparison of the eluents from extraction column. The experimental results showed that detection limits of the method were 0.01, 0.03 μg/L, the recoveries of standard addition were 83.15%～109.6%, and relative standard deviations were 3.36% and 7.71%. This method could be used to determine chlorpyrifos and hexachlorobenzene in water, which had the advantages of short time consuming, good precision, low detection limit and convenient operation.
A method for simultaneous determination of hexachlorobenzene and chlorpyrifos in water was established. Temperature of the column,detector and vaporization chamber of the chromatograph Autosystem XL were determined by methods of variables control. Methods of pretreatment of water samples was determined by comparison of the eluents from extraction column. The experimental results showed that detection limits of the method were 0.01, 0.03 μg/L, the recoveries of standard addition were 83.15%～109.6%, and relative standard deviations were 3.36% and 7.71%. This method could be used to determine chlorpyrifos and hexachlorobenzene in water, which had the advantages of short time consuming, good precision, low detection limit and convenient operation.
引文
[1] 刘翠英,王艳玲,蒋新. 六氯苯在土壤中的主要迁移转化过程[J]. 土壤, 2014, 46(1): 29-34.
[2] 吴荣芳,解清杰,黄卫红,等. 六氯苯的环境危害及其污染控制[J]. 化学与生物工程, 2006,23(8): 7-10.
[3] 刘辉,姜林,王琪,等. 六氯苯微生物降解研究进展[J]. 环境污染与防治, 2013, 35(1): 86-92.
[4] 吴小毛,方华,王晓,等. 固相萃取-毛细管气相色谱法测定蔬菜、土壤和水中的毒死蜱残留量[J]. 环境污染与防治, 2005,27(2): 142-145.
[5] 胡鸿雁. 水中毒死蜱的固相萃取气相色谱测定法[J]. 环境科学与技术, 2008,31(8): 71-72.
[6] 刘承兰,钟国华,高燕,等. 测定环境水样中毒死蜱及其降解产物的固相萃取-高效液相色谱法[J]. 西北农林科技大学学报(自然科学版), 2008,36(2): 215-221.
[7] 刘之菊,季铁梅,田华,等. 固相萃取-气相色谱法测定海水中痕量有机磷农药毒死蜱[J]. 净水技术, 2016, 35(1): 83-87.
[8] 孟凡生,王业耀,陈晶. 我国水环境有机物分析前处理技术[J]. 环境监测管理与技术, 2010, 22(4): 15-18.
[9] 张景明,刘建琳,周雯,等. 水样中痕量有机物分析的前处理方法[J]. 中国环境监测, 2001(3): 31-33.Simultaneous Determination of Chlorpyrifos and Hexachlorobenzene in Tap Water by Solid Phase Extraction-Gas Chromatography
[2] 吴荣芳,解清杰,黄卫红,等. 六氯苯的环境危害及其污染控制[J]. 化学与生物工程, 2006,23(8): 7-10.
[3] 刘辉,姜林,王琪,等. 六氯苯微生物降解研究进展[J]. 环境污染与防治, 2013, 35(1): 86-92.
[4] 吴小毛,方华,王晓,等. 固相萃取-毛细管气相色谱法测定蔬菜、土壤和水中的毒死蜱残留量[J]. 环境污染与防治, 2005,27(2): 142-145.
[5] 胡鸿雁. 水中毒死蜱的固相萃取气相色谱测定法[J]. 环境科学与技术, 2008,31(8): 71-72.
[6] 刘承兰,钟国华,高燕,等. 测定环境水样中毒死蜱及其降解产物的固相萃取-高效液相色谱法[J]. 西北农林科技大学学报(自然科学版), 2008,36(2): 215-221.
[7] 刘之菊,季铁梅,田华,等. 固相萃取-气相色谱法测定海水中痕量有机磷农药毒死蜱[J]. 净水技术, 2016, 35(1): 83-87.
[8] 孟凡生,王业耀,陈晶. 我国水环境有机物分析前处理技术[J]. 环境监测管理与技术, 2010, 22(4): 15-18.
[9] 张景明,刘建琳,周雯,等. 水样中痕量有机物分析的前处理方法[J]. 中国环境监测, 2001(3): 31-33.Simultaneous Determination of Chlorpyrifos and Hexachlorobenzene in Tap Water by Solid Phase Extraction-Gas Chromatography