| 自动进样及气体分流技术测定气体中非甲烷总烃 |
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| 引用本文： | 缪建军,吴鹏,於香湘.自动进样及气体分流技术测定气体中非甲烷总烃[J].干旱环境监测,2011,25(4):203-204,F0004. |
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| 作者姓名： | 缪建军 吴鹏 於香湘 |
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| 作者单位： | 南通市环境监测中心站,江苏南通,226006 |
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| 基金项目： | 江苏省环境监测科研基金项目 |
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| 摘 要： | 采用自动进样和气体分流技术,双柱双FID检测器气相色谱法测定气体中的非甲烷总烃,实现了非甲烷总烃的连续自动分析,同时一次进样即可得到甲烷和总烃的数据。方法的检出限为0.05 mg/m3,测定的相对标准偏差在0.7%~1.8%内,非甲烷总烃的加标回收率为96.0%~98.5%。与传统手动进样法相比,本方法具有重复性好、操...
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| 关 键 词： | 自动进样 分流技术 气相色谱 非甲烷总烃 |
Determination of Non-methane Hydrocarbons Using Auto Injection and Gas Split Technology |
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| MIAO Jian-jun,WU Peng,YU Xiang-xiang.Determination of Non-methane Hydrocarbons Using Auto Injection and Gas Split Technology[J].Arid Environmental Monitoring,2011,25(4):203-204,F0004. |
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| Authors: | MIAO Jian-jun WU Peng YU Xiang-xiang |
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| Institution: | (Nantong Environmental Monitoring Center,Nantong Jiangsu 226006,China) |
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| Abstract: | Auto injection and gas split technology are applied in the determination of non-methane hydrocarbons（NMHC） by gas chromatography with dual-column and dual-FID.The NMHC is determined automatically.And concentrations of methane and total hydrocarbons can be obtained simultaneously with one injection.The detection limit is 0.05 mg/m3.The RSD of NMHC is in the range of 0.7%~1.8%.The recovery rate of NMHC is in the range of 96.0%~98.5%.Comparing to traditional method,this method is fast,easy and has good repeatability,which could greatly improve the analysis efficiency of NMHC. |
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| Keywords: | auto injection gas split GC non-methane hydrocarbons |
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