A Study on Using A Micro Differential Mobility Spectrometry (DMS) for Toluidine Isomers Separation and Detection

摘要：

Using Micro-Electro-Mechanical System (MEMS) technology, a Differential Mobility Spectrometry (DMS) has been fabricated to separate and detect three Toluidine isomers, o-Toluidine, m-Toluidine and p-Toluidine. The 4×2×0.2cm3 ion drift tube, key component of DMS, is equipped with a 10.6 eV (λ.=116.5 nm) photo-discharge lamp as the ion source. The flow rate of 99.9％ Nitrogen as drift gas is 6 L/min. The resolution and the detection limits of ions of the DMS have been evaluated through nonlinear ion mobility coefficients and concentration dependence. Results demonstrate that three Toluidine isomers can be separated and detected effectively by the DMS. Concentrations of o-Toluidine as low as 10 parts-per-billion have been detected. Good resolution of ions for Toluidines illustrates an advantage of DMS for isomers separation and detection.

关键词： Differential Mobility Spectrometry (DMS) Toluidines isomers nonlinear ion mobility coefficients carcinogenic aromatic amines

作者: Chen Chilai Zhao Cong Kong Deyi Mei Tao Lin Xinhua

作者单位: institute of Intelligent Machines, Chinese Academy of Science Department of Precision Machine and Pr institute of Intelligent Machines, Chinese Academy of Science institute of Intelligent Machines, Chinese Academy of Science

会议类型: 国际会议

会议名称: 2011 International Conference on Information and Industrial Electronics(2011年信息与工业电子国际会议 ICIIE 2011)

会议地点: 成都

会议语种:英文

页码: 530-532

在线出版日期: 2011-01-14（万方平台首次上网日期，不代表论文的发表时间）