| 预冷冻浓缩系统与气相色谱-质谱法测定空气中苯的测量不确定度评定 |
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| 引用本文： | 朱希希,张祥志,张宗祥.预冷冻浓缩系统与气相色谱-质谱法测定空气中苯的测量不确定度评定[J].环境监控与预警,2014,6(6):34-36. |
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| 作者姓名： | 朱希希 张祥志 张宗祥 |
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| 作者单位： | 1. 泰州市环境监测中心站,江苏 泰州,225300
2. 江苏省环境监测中心,江苏 南京,210036 |
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| 摘 要： | 根据 Top－down技术中的控制图法，运用预冷冻浓缩系统与气相色谱－质谱联用对苯标准样气进行多次测定。通过计算和评定，得出当苯的测定浓度为100×10^－9时，不确定度为5．1×10^－9。
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| 关 键 词： | 不确定度评定 Top-down技术 预冷冻浓缩 气相色谱 -质谱法 苯 空气 |
| 收稿时间： | 4/2/2014 12:00:00 AM |
| 修稿时间： | 7/5/2014 12:00:00 AM |
Uncertainty Evaluation of Analyzing Benzene in Environmental Air by Cryo concentration/GC MS |
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| ZHU Xi-xi
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ZHANG Xiang-zhi
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ZHANG Zong-xiang.Uncertainty Evaluation of Analyzing Benzene in Environmental Air by Cryo concentration/GC MS[J].Environmental Monitoring and Forewarning,2014,6(6):34-36. |
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| Authors: | ZHU Xi-xi ZHANG Xiang-zhi ZHANG Zong-xiang |
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| Institution: | ZHU Xi-xi, ZHANG Xiang-zhi, ZHANG Zong-xiang ( 1. Taizhou Environmental Monitoring Central station, Taizhou, Jiangsu 225300, China ;2. Jiangsu Environmental Monitoring Center, Nanjing, Jiangsu 210036, China ) |
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| Abstract: | Based on the repeated testing of standard gas of benzene by pre-concentration combined gas chromatography-mass spec-trometry,the top-down control chat was used for uncertainty evaluation.The results showed that the uncertainty was 5.1×10^ -9 when the concentration of benzene was 100 ×10^-9 . |
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| Keywords: | Uncertainty evaluation Top down technique Cryo concentration GC MS Benzene Air |
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