摘要
采用表面解吸常压化学电离(SDAPCI)质谱法,在无需样品预处理情况下,直接测定了火锅底料中可卡因的含量.采用取样针取样,单次取样量在纳升级,单个样品测定时间少于0.5min,回收率为92.9%～106.6%;相对标准偏差(RSD)为4.7%～11.6%;可卡因的检出限可达1.5×10-12g/mL.该方法适用于批量火锅底料等食品类样品的快速半定量检测.
A novel method was developed for the direct detection of cocaine in hot pot sauce materials by surface desorption atmospheric pressure chemical ionization mass spectrometry（SDAPCI-MS） without any sample pretreatment.By using sample needle sampling,the volume of each sampling was at nanoliter level.The average time for a single sample analysis was less than 0.5 min.The recoveries of six samples spiked with cocaine were shown to be in the range of 92.9% —106.6%,and the relative standard deviations of the method were in the range of 5.2% —11.8%.The detection limit of this method for cocaine was found to be 1.5 × 10-12 g/mL.The data show SDAPCI-MSn is a powerful tool for rapid,semi-quantitative detection of cocaine in hot pot sauce materials.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第10期1961-1964,共4页
Chemical Journal of Chinese Universities
基金
东华理工大学研究生创新资金(批准号:DYCA10002)资助
关键词
表面解吸常压化学电离源
质谱
可卡因
火锅底料
快速检测
Surface desorption atmospheric pressure chemical ionization
Mass spectrometry
Cocaine
Hot pot sauce materials
Rapid analysis
