基于电热蒸发辅助脉冲电晕放电大气压离子化源的重金属污染在线质谱检测技术

J4 ›› 2011, Vol. 49 ›› Issue (01): 135-138.

基于电热蒸发辅助脉冲电晕放电大气压离子化源的重金属污染在线质谱检测技术

周建光, 林静, 张涛, 张体强, 牟颖

浙江大学工业控制技术国家重点实验室, 智能系统与控制实验室, 分析仪器研究中心, 杭州 310058

收稿日期:2010-03-25 出版日期:2011-01-26 发布日期:2011-02-19
通讯作者: 牟颖 E-mail:ymu100@yahoo.com.cn

OnLine Mass Spectrometry Detection of Heavy Metals byElectrothermal VaporizationAssisted Pulsed Corona DischargeIonization Source under Ambient Conditions

ZHOU Jianguang, LIN Jing, ZHANG Tao, ZHANG Tiqiang, MU Ying

State Key Lab of Industrial Control Technology, Institute of CyberSystems and Control, Research Center for Analytical Instrumentation, Zhejiang University, Hangzhou 310058, China

Received:2010-03-25 Online:2011-01-26 Published:2011-02-19
Contact: MU Ying E-mail:ymu100@yahoo.com.cn

摘要/Abstract

摘要：

研制电热蒸发辅助脉冲电晕放电大气压离子化源, 将其与飞行时间质谱耦合联用, 建立了重金属污染的在线检测方法. 实验结果表明, 该方法对V,Cr,Mn,As等主要重金属污染物检测性能较好, 灵敏度高, 检出限一般可达10^-13~10^-12 g, 具有结构简单、操作方便、能耗低等特点, 实现了在线监测.

关键词: 脉冲电晕放电；电热蒸发；重金属检测；大气压电离；在线质谱监测

Abstract:

A homemade electrothermal vaporizationassisted pulsed corona discharge atmospheric pressure ionization source was developed for cou
pling with a timeofflight mass spectrometer for online detection of heavy metals in water samples. Experimental results show that vanadium, chromium, manganese, arsenic, including arsenic, chromium, which are great harmful to the environment, could be detected. The source has a simple structure, convenient operation, low energy consumption, and is easy to use, with a high sensitivity. The limit of detection can get to
10^-13—10^-12 g, and the method can be used online.

Key words: pulsed corona discharge, electrothermal vaporization; detection of heavy metal, atmospheric pressure ionization, online mass spectrometry detection

中图分类号:

O657.63

周建光, 林静, 张涛, 张体强, 牟颖. 基于电热蒸发辅助脉冲电晕放电大气压离子化源的重金属污染在线质谱检测技术[J]. J4, 2011, 49(01): 135-138.

ZHOU Jian-Guang, LIN Jing, ZHANG Chao, ZHANG Ben-Jiang, MAO Ying. OnLine Mass Spectrometry Detection of Heavy Metals byElectrothermal VaporizationAssisted Pulsed Corona DischargeIonization Source under Ambient Conditions[J]. J4, 2011, 49(01): 135-138.