芯片级高场非对称波形离子迁移谱技术检测危险品  

Determination of Hazardous Chemicals by Microchip-based Field Asymmetric Waveform Ion Mobility Spectrometric Technology

作　　者：张洁 李灵锋[2,3] 郭大鹏[2] 张媛 王琦[4] 李鹏[3] 汪小知[2,3] 

机构地区：[1]微木智能系统有限公司,苏州215163 [2]浙江大学信息与电子工程学系,杭州310027 [3]浙江大学苏州工业技术研究院,苏州215163 [4]江南大学食品学院,无锡214000

出　　处：《分析化学》2013年第7期986-992,共7页Chinese Journal of Analytical Chemistry

基　　金：浙江省教育厅科研项目(No.Y201225980);中央高校基本科研业务费专项资金资助(2012QNA5010);江苏省科技支撑计划项目(社发)(BE2012655);苏州市国际科技合作项目(SH201222)

摘　　要：建立了吸气法-芯片级高场非对称波形离子迁移谱(FAIMS)技术,设置进样温度为50℃,载气与样品气流量分别为1500和100 mL/min时,测定了10种国家交通部门规定严禁携带的易燃易爆危险品。实验结果表明,利用FAIMS技术可以有效检测多种危险品。实验得到了10种危险品的FAIMS图谱,并对其进行了指纹识别。利用扩散管辅助技术得到10种物质的检测浓度范围约为0.1～20 mg/L。此方法方便快速,灵敏度高,具有很好的应用前景。An in-situ analytical procedure employing silicon chip based ultra high field asymmetric waveform ion mobility spectrometry （FAIMS） via direct sniffing was developed. The sample introduction temperature was 50℃. The carrier gas flow rate and the sample flow rate were 1500 mL/min and 100 mL/min respectively. Ten listed hazardous chemicals, which were prohibited for public transportation in China, were selected to verify the procedure in terms of validity, sensitivity and selectivity. Recognition algorithm was also developed for the FAIMS fingerprint spectral. Ten chemicals were resolved with high reproducibility at the concentration from 0.1 to 20 mg/L. In comparison with current competing instruments, the microehip-based FAIMS instru- ment, which features its simplicity, high sensitivity and selectivity, fast response and free of sample pretreat- ment, opens up new applications in the field of public security and homeland security.

关 键 词：高场非对称波形离子迁移谱 吸气法 易燃易爆危险品 

分 类 号：O657.75[理学—分析化学]