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| 顶空气相色谱法测定漓江底泥中的三氯乙烯和四氯乙烯 |
| Determination of Trichloroethylene and Tetrachloroethylene in Li River Sediments by Headspace Gas Chromatography |
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| DOI： |
| 中文关键词: 三氯乙烯 四氯乙烯 顶空气相色谱法 底泥 |
| 英文关键词: Trichloroethylene Tetrachloroethylene Headspace gas chromatography Sediment |
| 基金项目:桂林市环境监测中心站科研孵化基金资助项目（FH201502） |
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| 中文摘要: |
| 采用NaCl溶液提取，顶空气相色谱法测定底泥中的三氯乙烯和四氯乙烯，方法在0.098 ng/L～1.03 ng/L范围内线性良好，三氯乙烯和四氯乙烯的方法检出限分别为0.013 ng/g和0.016 ng/g。对空白样品做3个质量比水平的加标回收试验，7次测定结果的RSD为2.0%～3.8%，平均加标回收率为94.0%～109%。将该方法用于桂林市漓江底泥样品的测定，结果三氯乙烯和四氯乙烯均为未检出，实际样品加标回收率为92.0%～107%。 |
| 英文摘要: |
| Trichloroethylene and tetrachloroethylene in sediment were extracted by 10% NaCl solution, and determined by headspace gas chromatography. Results showed that good linearity was obtained in the concentration range of 0.098 ng/L～1.03 ng/L. The MDL of trichloroethylene and tetrachloroethylene were 0.013 ng/kg and 0.016 ng/kg, respectively.7 times of spiked blank tests were carried out in 3 concentration level, the RSDs of 7 tests ranged from 2.0%～3.8%, the average recoveries were in the range of 94.0%～109%. The test results of sediment samples from Li River in Guilin showed that trichloroethylene and tetrachloroethylene were not detected, the recoveries of spiked sample were in the range of 92%～107%. |
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