In vivo analysis of two new fungicides in mung bean sprouts by solid phase microextraction-gas chromatography-mass spectrometry. (1st March 2019)

• Record Type: Journal Article
• Authors: Shi, Zhen; Chen, Dan; Chen, Tian-Tian; Wei, Ge; Yin, Chun-Yan; Xu, Hui; Yang, Guang-Fu
• Is Part Of: Food chemistry. Volume 275(2019)
• Page Start: 688
• Page End: 695
• Publication Date: 2019-03-01
• Subjects: SPME solid phase microextraction -- GC–MS chromatography-mass spectrometry -- PS/G@SiO2 polystyrene/graphene@silica -- RSDs relative standard deviations -- R2 correlation coefficients -- LC-MS/MS liquid chromatography-tandem mass spectrometry -- LLE liquid-liquid extraction -- DMF N, N-Dimethylformamide -- MW molecular weight -- PDMS polydimethylsiloxane -- CAR/PDMS carboxen/polydimethylsiloxane -- EI electron ionization -- SIM selected ion monitoring -- FT-IR Fourier transform infrared -- FE-SEM field emission electron microscope -- BET Brunauer-Emmett-Teller -- TGA Thermogravimetric Analysis -- LOD limits of detection; Solid phase microextraction -- Gas chromatography-mass spectrometry -- Polystyrene/graphene@silica -- Fungicides -- In vivo -- Mung bean sprouts; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2018.09.148
• Languages: English
• ISSNs: 0308-8146

Abstract

Abstract: A novel solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC–MS) method was developed to quantify two new fungicide residuals (Y13149, Y12196) in mung bean sprouts. With a stable and biocompatible elcetrospinning nanofiber (polystyrene/graphene@silica, PS/G@SiO2 ) as coating, the SPME fiber was directly inserted into the stem of mung bean sprout to in-situ in-vivo sampling and extraction, followed by GC–MS analysis. Under the optimal conditions, satisfactory average recoveries of 99% and 72% were obtained for Y13149 and Y12196 with the relative standard deviations (RSDs) under 16.3%, indicating good precision and anti-matrix ability of the method. The result also exhibited low detection limit (0.06–0.08 μg·L −1 ) and wide liner range (0.3–100 μg·L −1 ) with the correlation coefficients (R 2 ) of 0.9989. The established method was applied successfully to trace the accumulation and distribution of fungicides in mung bean sprouts, and it provides a simple, rapid and reliable quantitative method for food analysis.