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| 表面解吸常压化学电离质谱法直接测定奶粉中三聚氰胺 | |
| 引用本文： | 杨水平,胡斌,李建强,韩京,张燮,陈焕文,刘清,刘清珺,郑建.表面解吸常压化学电离质谱法直接测定奶粉中三聚氰胺[J].分析化学,2009,37(5). |
| 作者姓名： | 杨水平 胡斌 李建强 韩京 张燮 陈焕文 刘清 刘清珺 郑建 |
| 作者单位： | 1. 东华理工大学应用化学系,抚州,344000 2. 东华理工大学应用化学系,抚州,344000;吉林大学化学学院,长春,130012 3. 北京市理化分析测试中心,北京,100089 |
| 基金项目： | 国家自然科学基金，科技部仪器升级改造专项基金 |
| 摘 要： | 应用表面解吸常压化学电离(SDAPCI)质谱法,在无需样品预处理的情况下,直接测定了奶粉中三聚氰胺,并用串联质谱法对测定结果进行了鉴定.采用手动进样,单个样品测定时间少于0.5 min,回收率为86.7%～112.8%;相对标准偏差(RSD)为4.3%～10.3%;对奶粉中三聚氰胺的检出限为8.8 μg/kg.方法适用于批量样品的快速半定量检测. |
| 关 键 词： | 表面解吸常压化学电离源 质谱 三聚氰胺 奶粉 快速检测 |
Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry for Direct Detection Melamine in Powdered Milk Products |
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| YANG Shui-Ping,HU Bin,LI Jian-Qiang,HAN Jing,ZHANG Xie,CHEN Huan-Wen,LIU Qing,LIU QingJun,ZHENG Jian.Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry for Direct Detection Melamine in Powdered Milk Products[J].Chinese Journal of Analytical Chemistry,2009,37(5). | |
| Authors: | YANG Shui-Ping HU Bin LI Jian-Qiang HAN Jing ZHANG Xie CHEN Huan-Wen LIU Qing LIU QingJun ZHENG Jian |
| Institution: | Department of Applied Chemistry;East China Institute of Technology;Fuzhou 344000;College of Chemistry;Jilin University;Changchun 130012;Beijing Center for Physical and Chemical Analysis;Beijing 100089 |
| Abstract: | A novel method was developed for the direct detection of trace amounts of melamine in powdered milk products by using surface desorption atmospheric pressure chemical ionization mass spectrometry(SDAPCI-MS) without any sample pretreat ment.Taking the advantage of multiple-stage tandem MS capability of an ion trap mass analyzer,all the signals detected from milk powders were quickly identified using the characteristic fragments of melamine,resulting in confident validation of the analytical results.The avera... |
| Keywords: | Surface desorption atmospheric pressure chemical ionization mass spectrometry melamine milk power rapid analysis |
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