%0 Journal Article
%T Automatic Continuous Monitoring of Volatile Organic Compounds Using Ion Mobility Spectrometer Array<br>全自动阵列离子迁移谱仪连续监测挥发性有机化合物
%A ZHOU Qing-hu
%A CANG Huai-wen
%A JU Bang-yu
%A LI Lin
%A DU Yong-zhai
%A CHEN Chuang
%A HOU Ke-yong
%A LI Jing-hu
%A WANG Wei-guo
%A LI Hai-yang
%A <br>周庆华
%A 仓怀文
%A 鞠帮玉
%A 李林
%A 杜永斋
%A 陈创
%A 侯可勇
%A 李京华
%A 王卫国
%A 李海洋
%J 环境科学
%D 2011
%I 
%X An ion mobility spectrometer array was designed, in order to broaden the detection range of ion mobility spectrometer and improve the accuracy of compound identification. This instrument was based on the combination of ionization sources of 63Ni positive ion mode,63Ni negative ion mode and photoionization mode with vacuum UV lamp, and it can continuously monitor the volatile organic compounds in air. With the automatic system of sampling and injection of this instrument, the positive ion of dimethyl sulfoxide and negative ion of dichloromethane were detected simultaneously. By comprehensive analysis of spectra with ion mobility spectrometer array, acrylonitrile, m-xylene and acetone were identified, which were difficult to be distinguished under the63Ni positive ion mode. Acetone samples were determined quantitatively within four days continuously, and the results indicated that the linear range of acetone in this instrument was 2 orders of magnitude. The linear correlation coefficient R was higher than 0.995, and the relative standard deviations were controlled in the range of 4.0%-18.3%. Methacrylate leaked in simulation was monitored on-line for 24 h continuously, using the method of dynamic tracking, and the result showed the leaking time and the concentration of methacrylate directly.
%K array
%K ion mobility spectrometer(IMS)
%K continuous monitoring
%K volatile organic compounds(VOCs)
%K dynamic tracking<br>阵列
%K 离子迁移谱仪
%K 连续监测
%K 挥发性有机化合物
%K 动态跟踪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=9345C3E296A5F6AFD5A1F463C98B3820&yid=9377ED8094509821&vid=9971A5E270697F23&iid=59906B3B2830C2C5&sid=5063098C39A2DD49&eid=0841934E59C5EA30&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=16