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Citation: GONG Xiaoming, MA Ronghui, WANG Hongtao, GUO Liqiang, LI Kai, WU Zhenxing, ZHAO Han, SUN Jun. Determination of ochratoxin A in wine by direct analysis in real time-tandem mass spectrometry[J]. Chinese Journal of Chromatography, ;2017, 35(2): 185-190. doi: 10.3724/SP.J.1123.2016.07008 shu

Determination of ochratoxin A in wine by direct analysis in real time-tandem mass spectrometry

GONG Xiaoming ^1, ,
MA Ronghui ¹ ,
WANG Hongtao ¹ ,
GUO Liqiang ¹ ,
LI Kai ¹ ,
WU Zhenxing ² ,
ZHAO Han ¹ ,
SUN Jun ¹

1.
Weifang Entry-Exit Inspection and Quarantine Bureau, Weifang 261041, China;
2.
Technical Center, Shandong Entry-Exit Inspection and Quarantine Bureau, Qingdao 266002, China

Received Date: 7 July 2016

Fund Project: Scientific Research Fund Project of General Administration of Quality Supervision and Inspection and Quarantine of the Peoples Republic of China (No. 2013IK177).

A method for the determination of ochratoxin A (OTA) in wine was developed using direct analysis in real time-electrospray ionization tandem mass spectrometry (DART-MS/MS). The sample was extracted with ethyl acetate and purified by votexing with ODS powder, detected using DART-MS/MS. The results showed that the average recoveries ranged from 88.7% to 105.7% with the RSDs of 8.5%-12.8% at three spiked levels of 1.0, 2.0, and 10 μ g/kg. The LOQ was 0.5 μg/kg. The proposed method was accurate, rapid and reliable, which can be successfully applied to the qualitative and quantitative analysis of ochratoxin A in wine.
- QuEChERS,
- isotope dilution internal standard,
- direct analysis in real time (DART),
- tandem mass spectrometry (MS/MS),
- ochratoxin A (OTA),
- wine
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