Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (10): 1961.

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Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry for Direct Detection of Trace Amounts of Cocaine in Hot Pot Sauce Materials

SONG Qing-Hao1,3, WANG Jiang2, HU Bin2, CHEN Huan-Wen2, JIN Qin-Han1*   

  1. 1. Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310058, China;
    2. Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China;
    3. Shandong Electric Power Engineering Consulting Institute, Jinan 250013, China
  • Received:2010-02-05 Online:2010-10-10 Published:2010-10-10
  • Contact: JIN Qin-Han. E-mail: qhjin@zju.edu.cn
  • Supported by:

    东华理工大学研究生创新资金(批准号: DYCA10002)资助.

Abstract: 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 ave-rage 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.

Key words: Surface desorption atmospheric pressure chemical ionization, Mass spectrometry, Cocaine, Hot pot sauce materials, Rapid analysis

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