Determination of Triazole Fungicides in Fruits and Vegetables by Liquid Chromatography-Mass Spectrometry (LC/MS) - Agricultural Chemistry - page 182

consistent and reproducible recoveries for tomato, cabbage and orange for most triazole
compounds but not for carrot. High Performance Liquid Chromatography coupled with
mass spectrometry by atmospheric pressure ionisation can be used for the identification of
triazole fungicides in vegetables and additional confirmatory is not needed.
More sensitive analytical methods such as LC-QTof (Liquid chromatography high
resolution time-of-flight), orbitrap mass analyzers (LC-HR-MS), LC-MS/MS that have higher
sensitivity and specificity can also be used. LC-QTof, LC-MS/MS can be used for screening
and confirmation work and need no additional confirmatory. Liquid chromatography
coupled with high resolution time-of-flight or orbitrap mass analyzers (LC-HR-MS) seems to
open new and attractive possibilities for residue analysis [30-31].
Author details
Nor Haslinda Hanim Bt Khalil
Food Quality Laboratory, Health And Environmental, Dept., Kuala Lumpur City Hall,
Selayang, Kuala Lumpur
Tan Guan Huat
Dept. of Chemistry, Faculty of Science, Universiti Malaya, Lembah Pantai, Kuala Lumpur
Acknowledgement
The author wish to thank the Director and Deputy Director of Health and Environmental
Department, Kuala Lumpur City Hall for their support of this project and Mohd. Fairuz,
Assistant Science Offcer of Food Quality Laboratory, Kuala Lumpur City Hall for the
technical assistance.
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residues of 251 pesticides in fruits and vegetables by gas chromatography/mass
spectrometry and liquid chromatography with fluorescence detection. J. AOAC Int. 83,
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[4] S. Nemoto; K. Sasaki; S. Eto; I. Saito; H. Sakai; T. Takahashi; Y. Tonogai; T. Nagayama;
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[5] H. Obana; K. Akutsu; M. Okihashi; and S. Hori (2001). Analyst 126, 1529-1534
[6] Anastassiades, M., Lehotay, S.J., Štajnbaher, D., and Schenck, F.J. (2003). Fast and Easy
Multiresidue Method Employing Acetonitrile Extraction /Partitioning and”Dispersive
Solid-Phase Extraction” for the Determination of Pesticide Residues in Produce. J.
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