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Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry for Direct Detection Melamine in Powdered Milk Products
Author(s): 
Pages: 691-694
Year: Issue:  5
Journal: Chinese Journal of Analytical Chemistry

Keyword:  表面解吸常压化学电离源质谱三聚氰胺奶粉快速检测;
Abstract: 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.
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