title: Study on Mobility, Distribution and Rapid Ion Mobility Spectrometry Detection of Seven Pesticide Residues in Cucumber, Apple, and Cherry Tomato.
abstract: This research explores the mobility and distribution rules of simazine, acetamiprid, hexazinone, paclobutrazol, amitraz, clofentezine, and boscalid in the pulp and peel of apple, cucumber, and cherry tomato. A laboratory test was carried out by treating the matrices with standard solution for different periods of time. The percentage sorption of pesticides ranged from 0.02 to 89.3% for the three matrices. The pesticides' distribution was also determined, and all pesticides showed ratio values (Q) between pulp and peel concentrations in the three matrices of <0.8, which proved that the highest pesticides' content was found in the peel. In addition, a rapid and simple process combining a surface swab capture method and pulse glow discharge-ion mobility spectrometry (PGD-IMS) detection was established for the detection of pesticides on matrix surfaces. In the swab method, the whole matrix surface was swabbed manually by swab sticks, and swab sticks were agitated in acetonitrile to release the pesticides. The releasing factors of pesticides in the three matrices were calculated. The linearity, LOD, LOQ, and matrix effect were investigated to assess the applicability of the swab-IMS process in practical analysis. The swab-IMS method is rapid, sensitive, and quantitative and can be achieved in the field.
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.
authors.forename: Nan
authors.initials: N
authors.lastname: Zou
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.
authors.forename: Chunhao
authors.initials: C
authors.lastname: Yuan
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.|Institute of Pesticide & Environmental Toxicology, Guangxi University , Nanning 530005, People's Republic of China.
authors.forename: Ronghua
authors.initials: R
authors.lastname: Chen
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.
authors.forename: Juan
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.
authors.forename: Yifan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Institute of Pesticide & Environmental Toxicology, Guangxi University , Nanning 530005, People's Republic of China.
authors.forename: Xuesheng
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China.
authors.forename: Canping
authors.identifier: http://orcid.org/0000-0002-7616-1615
authors.initials: C
authors.lastname: Pan
mesh_terms: D018553:Cucumis sativus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D007700:Kinetics; D018551:Solanum lycopersicum / Q000737:chemistry*; D027845:Malus / Q000737:chemistry*; D010573:Pesticide Residues / Q000737:chemistry*; D012839:Simazine / Q000737:chemistry; D013057:Spectrum Analysis; D053719:Tandem Mass Spectrometry; D014227:Triazines / Q000737:chemistry
chemical_list: D010573:Pesticide Residues; D014227:Triazines; D012839:Simazine; C025641:hexazinone
keywords: distribution; ion mobility spectrometry; mobility; pesticides; residue; surface swab