| 固体涂层吸收采样流动注射光度法测定大气中的二氧化氮 |
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| 引用本文： | 王胜天,丁兰,秦玉华,闫吉昌. 固体涂层吸收采样流动注射光度法测定大气中的二氧化氮[J]. 分析化学, 2005, 33(12): 1730-1732 |
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| 作者姓名： | 王胜天 丁兰 秦玉华 闫吉昌 |
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| 作者单位： | 东北师范大学化学学院,长春,130024;吉林大学化学学院,长春,130023 |
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| 摘 要： | 采用固体涂层吸收采样与流动注射技术相结合方法测定大气中NO2。该方法的检出限为0．4mg／L，进样频率为90次／h；线性范围为0．4—3．2mg／L；相对标准偏差为3％。与常规方法比较结果一致。分析速度则比常规方法大为提高，样品易于保存，从而满足大批量样品监测的需要。
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| 关 键 词： | NO2 流动注射 吸收率 大气监测 |
| 收稿时间： | 2004-11-23 |
| 修稿时间： | 2004-11-232005-04-25 |
Determination of NO2 in Air Based on Flow Injection-Spectrophotometry with Sold-Absorption Sampling |
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| Wang Shengtian,Ding Lan,Qin Yuhua,Yan Jichang. Determination of NO2 in Air Based on Flow Injection-Spectrophotometry with Sold-Absorption Sampling[J]. Chinese Journal of Analytical Chemistry, 2005, 33(12): 1730-1732 |
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| Authors: | Wang Shengtian Ding Lan Qin Yuhua Yan Jichang |
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| Affiliation: | Department of Chemistry of Northeast Normal University, Changchun 130024; 2 Institute of Chemistry, Jilin University, Changchun 130023 |
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| Abstract: | A new sold-absorption-flow injection-spectrophotometric method has been developed for the determination of NO2 in air. The detection limit is 0.4 mg/L and relative standard deviation is 3%. The linear range of the method is 0.4 - 3.2 mg/L and the sampling rate is 90 time/h. The determination results of this method are in good agreement with those of the standard method. It is suitable for the routine analysis of a lot of samples. |
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| Keywords: | NO2 |
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