Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (8): 1430.doi: 10.7503/cjcu20160127

• Analytical Chemistry • Previous Articles     Next Articles

Direct Detection of Tetracycline in Honey by Neutral Desorption-Extractive Electrospray Ionization Mass Spectrometry

DENG Min1, FANG Xiaowei2, GUO Xiali1, HUANG Xueyong1, LIU Xingxing1,2, YU Tenghui1, LUO Liping1,*()   

  1. 1. School of Life Sciences, Nanchang University, Nanchang 330031, China
    2. Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
  • Received:2016-03-03 Online:2016-07-11 Published:2016-07-11
  • Contact: LUO Liping E-mail:lluo2@126.com
  • Supported by:
    Supported by the 12th Five-Rural Areas of the National Science and Technology Plan Project of China(No.2012BDA29B01), the National Natural Science Foundation of China(No.31071551), the Program for Changjiang Scholars and Innovative Research Team in University of China(No.IRT13054) and the Project of Science and Technology Department of Jiangxi Province of China(No.20121BDH80020)

Abstract:

A novel platform of neutral desorption-extractive electrospray ionization mass spectrometry(ND-EESI-MS) for direct and rapid detection oftetracycline(TC) in honey sample without any sample pretreatment wa constructed. The results showed that the limit of detection was 1.08 ng/mL with a linear working range from 20 to 1000 ng/mL(R2>0.997) toward TC in honey; the recoveries and relative standard deviations of TC from spiked samples, at three fortification levels(50, 500, 1000 ng/mL), were 94.26%, 98.38%, 103.00% and 3.28%, 1.39%, 1.12%, respectively. Eight common commodity honey samples were detected by this method and the results reveal that 2 of them contain traces of TC, while TC is not found in the rest samples. HPLC was also applied for TC detection in the asme honey samples, and TC is not found. Therefore, this ND-EESI-MS method is sensitive, rapid and specific for quantitative analysis of TC in honey without any sample pretreatment.

Key words: Neutral desorption-extractive electrospray ionization, Mass spectrometry, Tetracycline, Honey, Direct analysis

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