title: In situ hydrothermal growth of ZnO/g-C3N4 nanoflowers coated solid-phase microextraction fibers coupled with GC-MS for determination of pesticides residues.
abstract: In this paper, Zinc oxide (ZnO) hybridized with graphite-like C3N4 (ZnO/g-C3N4) nanoflowers based solid phase microextraction (SPME) coating was prepared on fiber using in situ hydrothermal growth method for gas chromatographic -mass spectrum (GC- MS) separation and analysis target analytes in complex matrixes for the first time. The proposed hybrid ZnO/g-C3N4 fiber exhibited wide linearity for the pesticide residues in range of 0.003-5.0 ng mL(-1). The limits of detection (LOD) were 0.001-0.0025 ng mL(-1). The relative standard deviation (RSD) for three replicate extractions using one fiber was ranged from 2.3% to 7.6%. The fiber to fiber RSD was 5.3-11.3% (n = 3). This method was successfully used for simultaneous determination of nine pesticide residues in cucumber, pear, Green tea and Minjiang water with satisfactory recoveries of 79.1-103.5%. These results indicated that the ZnO/g-C3N4 composite provided a promising alternative in sample pretreatment and analysis.
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.
authors: Ning
authors: N
authors: Zhang
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.
authors: Jia
authors: J
authors: Gao
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.
authors: Chuanhui
authors: C
authors: Huang
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China; Testing Center, The Sport Science Research Center, Fuzhou University, Fuzhou, Fujian, 350002, China.
authors: Wei
authors: W
authors: Liu
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China; Testing Center, The Sport Science Research Center, Fuzhou University, Fuzhou, Fujian, 350002, China. Electronic address: tping@fzu.edu.cn.
authors: Ping
authors: P
authors: Tong
authors: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China; Testing Center, The Sport Science Research Center, Fuzhou University, Fuzhou, Fujian, 350002, China. Electronic address: zlan@fzu.edu.cn.
authors: Lan
authors: L
authors: Zhang
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D009570:Nitriles / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D052617:Solid Phase Microextraction; D013696:Temperature; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D009570:Nitriles; D010573:Pesticide Residues; D015034:Zinc Oxide
keywords: GC-MS; Pesticides residues; Solid phase microextraction; ZnO/g-C(3)N(4) nanoflowers