Multiresidue determination of pesticides in honey samples by gas chromatography–mass spectrometry and application in environmental contamination

2007 ◽  
Vol 101 (4) ◽  
pp. 1719-1726 ◽  
Author(s):  
S RISSATO ◽  
M GALHIANE ◽  
M DEALMEIDA ◽  
M GERENUTTI ◽  
B APON
2006 ◽  
Vol 89 (6) ◽  
pp. 1677-1681 ◽  
Author(s):  
Wei Zhang ◽  
Hejia Wang ◽  
Jianping Wang ◽  
Xiaowei Li ◽  
Haiyang Jiang ◽  
...  

Abstract A gas chromatography/mass spectrometry (GC/MS) method with immunoaffinity cleanup was developed for the determination of zeranol and related compounds, taleranol, zearalanone, and α-zearalenol in bovine muscle. Muscle samples were extracted with methanol and cleaned up with immunoaffinity chromatography (IAC) columns containing monoclonal antibodies raised against zeranol coupled to CNBr-activated Sepharose 4B. After derivatization, the compounds were analyzed by GC/MS. The dynamic column capacities for zeranol, taleranol, zearalanone, and α-zearalenol were 2639.7, 2840.3, 2731.5, and 2736.3 ng/mL Sepharose gel, respectively. The limits of detection and quantification were 0.5 and 1.0 ng/g, respectively, for all 4 compounds. Mean recoveries were 79.6110.7% with coefficients of variation of 3.211.4% at spiked levels of 1.05.0 ng/g. This IAC-GC/MS method may be used for the determination of zeranol, taleranol, zearalanone, and α-zearalenol residues in bovine muscle, and possibly other tissues.


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