title: Simultaneous Determination of Seven Kinds of Fungicides in Citrus Fruits by Gas Chromatograghy/Mass Spectrometry.
abstract: A simple and accurate procedure was developed for the determination of seven fungicides, azoxystrobin (AZO), diphenyl (DP), fludioxonil (FLUDI), imazalil (IMZ), o-phenylphenol (OPP), pyrimethanil (PYRI) and thiabendazole (TBZ), in citrus fruits. The citrus fruit sample was extracted with acetonitrile and cleaned up with a graphite carbon/aminopropyl silanized silica gel solid-phase extraction cartridge using acetonitrile-toluene (3 : 1, v/v) as the eluent. Triphenylene was used as an internal standard (I.S.) at the concentration of 0.5 μg/mL. The sample solution was subjected to GC-MS utilizing the matrix-matched standard solution method. The recoveries of AZO, FLUDI, IMZ, OPP, PYRI and TBZ spiked in domestic citrus fruits (Satsuma mandarin) at the level of 0.01-10.0 μg/g were 72.8-104% and the limits of quantification were 0.01 μg/g. The recoveries of DP spiked in domestic citrus fruits at the level of 0.01-70.0 μg/g were 70.8-80.4% and the limit of quantification was 0.01 μg/g. The proposed method was applied to the determination of fungicides in citrus fruits purchased in various markets.
authors: Setagaya Public Health Center.
authors: Hideo
authors: H
authors: Nagashima
authors: Akiho
authors: A
authors: Hirao
authors: Yuuki
authors: Y
authors: Tokuda
authors: Kumiko
authors: K
authors: Uruta
mesh_terms: D001713:Biphenyl Compounds / Q000032:analysis / Q000302:isolation & purification; D002957:Citrus / Q000737:chemistry*; D004149:Dioxoles / Q000032:analysis / Q000302:isolation & purification; D005504:Food Analysis / Q000379:methods*; D005659:Fungicides, Industrial / Q000032:analysis* / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D007093:Imidazoles / Q000032:analysis / Q000302:isolation & purification; D008689:Methacrylates / Q000032:analysis / Q000302:isolation & purification; D011743:Pyrimidines / Q000032:analysis / Q000302:isolation & purification; D011758:Pyrroles / Q000032:analysis / Q000302:isolation & purification; D000073739:Strobilurins; D013827:Thiabendazole / Q000032:analysis / Q000302:isolation & purification
chemical_list: D001713:Biphenyl Compounds; D004149:Dioxoles; D005659:Fungicides, Industrial; D007093:Imidazoles; D008689:Methacrylates; D011743:Pyrimidines; D011758:Pyrroles; D000073739:Strobilurins; D013827:Thiabendazole; C010574:biphenyl; C108337:pyrimethanil; C017435:enilconazole; C004369:2-phenylphenol; C108339:fludioxonil; C087670:azoxystrobin