| 吹扫捕集-GC-MS测定水中痕量氯乙酸的研究 |
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| 引用本文： | 张坚,王坚.吹扫捕集-GC-MS测定水中痕量氯乙酸的研究[J].广东化工,2011,38(2):159-160. |
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| 作者姓名： | 张坚 王坚 |
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| 作者单位： | 广州市自云区环境监测站,广东,广州,510405 |
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| 摘 要： | 固相萃取．吹扫捕集．气质联用法对一氯乙酸、二氯乙酸、三氯乙酸进行分析，水样体积为200mL时，此方法检出限分别为：0.004mg/L、0．0008mg/L、0．002mg/L，加标回收率为94％~107％。5次平行测定的相对标准偏差为3．78％-5．96％。取1000mL广州市自来水测定其中氯乙酸含量的结果是：一氯乙酸5．37μg／L、二氯乙酸10．84μg/L、三氯乙酸8．74μg／L。
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| 关 键 词： | 氯乙酸 GC—MS 固相萃取 吹扫捕集 自来水 |
Study on Determination of Trace Chloroacetic Acids in Water Using Purge and Trap-GC-MS |
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| Zhang Jian,Wang Jian.Study on Determination of Trace Chloroacetic Acids in Water Using Purge and Trap-GC-MS[J].Guangdong Chemical Industry,2011,38(2):159-160. |
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| Authors: | Zhang Jian Wang Jian |
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| Affiliation: | (Environmental Monitoring Center of Baiyun District in Guangzhou, Guangzhou 510405, China) |
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| Abstract: | The analytical performance of techniques based on the combination of solid phase extraction and purge and trap with gas chromatography-mass spectrometry were studied. It was found that the detection limits for monochloroacetie acid, diehloroaeefic acid and trichloroacetic acid by purge and trap were 0.004 mg/L, 0.0008 mg/L and 0.002 mg/L, respectively. The recovery was in the range of 94 %-107 % with RSD （n-5） of 3.78 %5.96 %. By the proposed method, the contents of monoehloroacetie acid, diehloroaeetic acid and trichloroacetic acid in tap water samples collected from Guangzhou were found to be 5.37 μg/L, 10.84 μg/L and 8.74 μg /L, respectively. |
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| Keywords: | GC-MS |
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