[Rapid determination of thiabendazole residue in barbary wolfberry fruit by ion exchange chromatography and fluorescence detection].
OBJECTIVE
To developed a method for the determination of thiabendazole residues in barbary wolfberry fruit by ion exchange chromatography (IEC) with fluorescence detection.


METHODS
The samples were extracted with 0.1% H3PO4. Chromatographic analysis was performed on a Supelcosil LC-SCX (4.6 mm x 250 mm, 5 microm) column eluted with 0.1 mol x L(-1) KH2PO4 (pH 3.0)-acetonitrile (70:30) and detection at lamdaex = 307 nm and lamdaem = 359 nm.


RESULTS
Thiabendazole in measured samples was separated completely. The calibration curve was linear at the range of 0.0005-0.02 mg x L(-1) with good precision and accuracy.


CONCLUSIONS
The proposed method was satisfactorily applied to the analysis of thiabendazole residues in barbary wolfberry fruit.
Zhao
Jie
J
College of Science, Xi'an University of Technology, Xibn 710048, China. redflyingbird@yahoo.com.cn
He
Qiang
Q
Kong
Xiang-hong
XH
Li
Jian-hua
JH
D002852:Chromatography, Ion Exchange / Q000379:methods*; D005638:Fruit / Q000737:chemistry*; D032305:Lycium / Q000737:chemistry*; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence; D013827:Thiabendazole / Q000032:analysis* / Q000737:chemistry*
D013827:Thiabendazole