Simple Method for Determination of Fungicides in Citrus Fruits by Liquid Chromatography–Tandem Mass Spectrometry

A simple method for the determination of four fungicides (thiabendazole, imazalil, o -phenylphenol, and diphenyl) in citrus fruits has been developed. After spiking surrogates of these fungicides, the sample was extracted with acetonitrile, salted out, and the water was simultaneously removed using...

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Bibliographic Details
Published in:Food analytical methods 2016-12, Vol.9 (12), p.3345-3351
Main Authors: Kakimoto, Yo, Takatori, Satoshi, Okihashi, Masahiro, Kajimura, Keiji, Toriba, Akira, Hayakawa, Kazuichi
Format: Article
Language:English
Subjects:
Acetonitrile
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Citrus fruits
Data points
Dimethyl sulfoxide
Food safety
Food Science
Fruits
Fungicides
Liquid chromatography
Magnesium
Mass spectrometry
Microbiology
Photoionization
Sodium chloride
Spectroscopy
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Summary:A simple method for the determination of four fungicides (thiabendazole, imazalil, o -phenylphenol, and diphenyl) in citrus fruits has been developed. After spiking surrogates of these fungicides, the sample was extracted with acetonitrile, salted out, and the water was simultaneously removed using anhydrous magnesium sulfate and sodium chloride. The extract was first purified with a primary secondary amine and octadecylsilane, followed by the addition of dimethyl sulfoxide as a keeper solvent, and subsequently concentrated under a nitrogen stream. The compounds were analyzed by liquid chromatography–tandem mass spectrometry using the atmospheric pressure photoionization interface. The recoveries and relative standard deviations (RSDs) of the fungicides (1 mg kg −1 ) were satisfactory (recovery 92–114 %; RSD
ISSN:1936-9751
1936-976X
DOI:10.1007/s12161-016-0530-6