光电离-离子迁移谱实验参数与性能研究

J4 ›› 2012, Vol. 29 ›› Issue (1): 8-14.

光电离-离子迁移谱实验参数与性能研究

李虎^1,3 牛文琪² 王鸿梅¹ 黄超群¹ 李建权¹ 沈成银¹ 江海河¹ 储焰南¹?

1.中科院安徽光学精密机械研究所环境光谱学研究室，合肥230031；
2.安徽农业大学理学院，合肥230036；
3.安徽理工大学理学院，淮南232001

收稿日期:2011-03-18 修回日期:2011-04-14 出版日期:2012-01-28 发布日期:2012-01-28
通讯作者: 储焰南，研究员，博士，博士生导师，主要从事环境光谱质谱研究。 E-mail:ychu@aiofm.ac.cn
作者简介:李虎，男，博士生，从事离子迁移谱研究。E-mail: lihu94@163.com
基金资助:
国家自然科学基金（20907054）,中国科学院创新工程重要方向项目（KGCX2-YW-917）

Parameters and performance analysis of photoionization ion mobility spectrometry

Li Hu^1,3, Niu Wenqi², Wang Hongmei¹, Huang Chaoqun¹, Li Jianquan¹, Shen Chenyin¹, Jiang Haihe¹, Chu Yannan¹

1.Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031
2.School of Science,Anhui Agricultural University, 230036 Hefei, China;
3.Anhui University of Science and Technology, 232001 Huainan, China

Received:2011-03-18 Revised:2011-04-14 Published:2012-01-28 Online:2012-01-28

摘要/Abstract

摘要：

报道了自主研制的光电离-离子迁移谱装置的基本结构和性能。采用Kr灯为电离源,以苯为检测样品。对迁移电场电压，离子门电压和脉冲宽度参数进行优化，得到最佳装置参数为离子门脉冲宽度0.15 ms，离子门电压80 V，迁移区电压2153 V。使用指数稀释方法制备样品浓度，获得了离子迁移谱检测苯的标准曲线，对苯的检测限为400 ppt，检测线性动态范围跨越三个数量级。

关键词: 光谱, 离子迁移谱, 光电离, 苯, 分辨率

Abstract:

The construction and performance study is reported for a newly developed photoionization ion mobility spectrometry (UV-IMS). An ion mobility spectrometry equipped with a 10.6eV Kr lamp has been developed. The effect of the total voltage of drift tube, pulse width and voltage of ion gate on resolving power and sensitivity of UV-IMS were discussed. The optimal values with the detection of benzene are 2153V, 0.15ms and 80V, respectively. The concentrations of benzene were prepared by means of exponential dilution method. The experiments show that the UV-IMS has a limit of detection at 400 ppt for benzene and its measurable linear dynamics range is over three orders of magnitude.

Key words: spectroscopy, UV-IMS, photoionization, benzene, resolution

中图分类号:

O659.2

李虎牛文琪王鸿梅黄超群李建权沈成银江海河储焰南. 光电离-离子迁移谱实验参数与性能研究[J]. J4, 2012, 29(1): 8-14.

Li Hu, Niu Wenqi, Wang Hongmei, Huang Chaoqun, Li Jianquan, Shen Chenyin, Jiang Haihe, Chu Yannan. Parameters and performance analysis of photoionization ion mobility spectrometry[J]. J4, 2012, 29(1): 8-14.

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