| 便携式气相色谱质谱测定水中挥发性有机物再现性和准确度研究 |
| Study on Reproducibility and Accuracy of Determining Volatile Organic Compounds in Water by Portable GC-MS |
| 投稿时间：2013-06-20 修订日期：2013-09-30 |
| DOI： |
| 中文关键词: 便携式GC-MS 准确度 再现性 应急监测 挥发性有机物 |
| 英文关键词:portable GC-MS accuracy reproducibility emergency monitoring volatile organic compounds |
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| 摘要点击次数: 10686 |
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| 中文摘要: |
| 建立了便携式顶空-气相色谱-质谱（HS-GC-MS）测定水中挥发性有机物的方法。以水中苯系物、卤代烃和氯代苯等VOCs为研究对象，在同一实验室内，使用3台便携式HS-GC-MS模拟现场应急监测环境开展检测活动，研究测定结果的再现性和准确度。实验结果表明，检测结果的相对标准偏差为0.7%~13%；绝大多数目标化合物测定结果的回收率为80%~120%。综合来看，方法的精密度和准确度基本满意，能够满足应急监测工作的需要。 |
| 英文摘要: |
| A method for portable gas chromatography and mass spectrometry (GC-MS) was established to analyze volatile organic compounds (VOCs) in water.At a same laboratory, the benzene and its analogies(BTEX)、halo-hydrocarbons and chlorobenzenes of VOCs in water were determined by portable headspace (HS)-GC-MS in order to study their analytic reproducibility and accuracy. The result reaches reproducibility with the RSD from 0.7% to 13%, as well as accuracy with the recoveries for most compounds from 80% to 120%. Generally, the precision and accuracy of the method were satisfied to meet the demand of emergency monitoring. |
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