title: Simultaneous analysis of thiabendazole, carbendazim and 2-aminobenzimidazole in concentrated fruit juices by liquid chromatography after a single mix-mode solid-phase extraction cleanup.
abstract: A method using liquid chromatography and a single mix-mode solid-phase extraction cleanup for the simultaneous analysis of thiabendazole [2-(1,3-thiazol-4-yl)-1H-benzoimidazole], carbendazim [(methyl N-(1H-benzoimidazol-2-yl)-carbamate)] and 2-aminobenzimidazole (1H-benzimidazol-2-amine) in concentrated fruit juices is described. The three fungicides were isolated from the samples and concentrated by solid-phase extraction on Oasis MCX cartridges. The determination was performed by liquid chromatography with a diode array, detecting at 288 nm. In this method, the average recoveries from blank control juice samples spiked in a concentration range of 0.01-0.10 mg/kg were in the range of 81-95%, with relative standard deviations below 8%. Detection limits and limits of quantification were 4 micro g/kg and 10 micro g/kg, respectively, for each fungicide. Real juice samples were analyzed by the proposed method. The results were compared to those from liquid chromatography-tandem mass spectrometry.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China. lxs3344@126.com
authors.forename: Xiao S
authors.initials: XS
authors.lastname: Liu
authors.forename: Zhang F
authors.initials: ZF
authors.lastname: Tong
authors.forename: Ling
authors.initials: L
authors.lastname: Zhen
authors.forename: Da X
authors.initials: da X
authors.lastname: Huang
authors.forename: Xin
authors.initials: X
authors.lastname: Gao
authors.forename: Chao Y
authors.initials: CY
authors.lastname: Xu
mesh_terms: D001562:Benzimidazoles / Q000032:analysis*; D001628:Beverages / Q000032:analysis*; D002219:Carbamates / Q000032:analysis*; D002853:Chromatography, Liquid; D005506:Food Contamination / Q000032:analysis; D005638:Fruit / Q000737:chemistry*; D005659:Fungicides, Industrial / Q000032:analysis; D057230:Limit of Detection; D052616:Solid Phase Extraction; D013827:Thiabendazole / Q000032:analysis*
chemical_list: D001562:Benzimidazoles; D002219:Carbamates; D005659:Fungicides, Industrial; C027391:2-aminobenzimidazole; C006698:carbendazim; D013827:Thiabendazole