| 固相微萃取-GC-MS-SIM法监测惠州市地表水中MTBE的污染状况 |
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| 引用本文： | 王希在,奉夏平,闻环.固相微萃取-GC-MS-SIM法监测惠州市地表水中MTBE的污染状况[J].光谱实验室,2009,26(6). |
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| 作者姓名： | 王希在 奉夏平 闻环 |
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| 作者单位： | 王希在,闻环(广东(惠州)石油产品质量监督检验中心,广东省惠州市江北文华二路,516003);奉夏平(广东省惠州市质量计量监督检测所,广东省惠州市江北文华二路,516003) |
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| 摘 要： | 采用固相微萃取(SPME)-顶空采样-气相色谱-质谱联用选择离子检测法(GC-MS-SIM)测定水中微量的甲基叔丁基醚.最优化实验条件为:使用75μm Carboxen/PDMS固相微萃取纤维,30℃搅拌条件下,加入20%氯化钠进行盐析.检出限为0.05μg/L,相对标准偏差为2.75%(n=8),重现性较好,样品的加标回收率在82%-120%之间.对惠州市市区地表水中MTBE的污染状况进行了监测,结果表明惠州市汽油油罐附近地表水中MTBE含量未超过美国环保局(EPA)规定最低限,居民区地表水中MTBE含量未检出,符合环保和健康要求.
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| 关 键 词： | 甲基叔丁基醚 固相微萃取 气相色谱-质谱联用 选择离子检测法 |
Determination of Methyl Tert-Butyl Ether in Surface Water of Huizhou City Using the Method of SPME-Headspace-GC-MS-SIM |
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| WANG Xi-Zai FENG Xia-Pinga WEN Huan,a.Determination of Methyl Tert-Butyl Ether in Surface Water of Huizhou City Using the Method of SPME-Headspace-GC-MS-SIM[J].Chinese Journal of Spectroscopy Laboratory,2009,26(6). |
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| Authors: | WANG Xi-Zai FENG Xia-Pinga WEN Huan a |
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| Institution: | WANG Xi-Zai FENG Xia-Pinga WEN Huan (Guangdong Quality Supervision & Testing Center for Petroleum Products,Wenhuaerlu,Jiangbei,Huizhou,Guangdong 516003,P.R.China) a(Guangdong Huizhou Quality & Measuring Testing Institue,P.R.China) |
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| Abstract: | Trace methyl tert-butyl ether (MTBE) in surface water was determined using the method of solid-phase micro extraction (SPME)-headspaee-GC-MS-SIM. The detection limit was 0.05μg/L, and the relative standard deviation was 2.75 %. The recoveries with standard addition were 82%-120%. We have studied the MTBE polution problem in surface water of Huizhou. The result suggested that MTBE content in surface water of Huizhou was not beyond EPA standard limits. |
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| Keywords: | Methyl Tert-Butyl Ether SPME GC-MS SIM |
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