title: [Determination of seven pesticide residues in bamboo shoots by high performance liquid chromatography-tandem mass spectrometry coupled with solid-phase extraction].
abstract: A simple and efficient method based on solid-phase extraction (SPE) and high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was developed for the determination of butylene fipronil, chlorpyrifos, chlorantraniliprole, fipronil, imidacloprid, indoxacarb and phoxim residues in bamboo shoots. The sample was extracted with acetonitrile and purified by a primary secondary amine (PSA) solid-phase extraction cartridge. The detection of targets was performed by HPLC-MS/MS with multiple reaction monitoring (MRM) mode. All the seven pesticides were completely separated in 15 min with an excellent linear relationship. The limits of detection and the limits of quantification for the seven pesticides were 0.02-0.5 microg/kg and 0.08-1.5 microg/kg, respectively. The recoveries of the seven pesticides spiked in a bamboo shoot sample at the levels of 4, 8, 32 microg/kg were in the range from 76.0% to 102.6% (the RSD < or = 11.0%, n = 3). The method was successfully applied to the real bamboo shoot samples. The method has high accuracy and sensitivity, and is simple and quick. It can meet the requirement of the simultaneous determination of the seven pesticides in bamboo shoots.
authors.affiliation: Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China. dm2616@163.com
authors.forename: Ming
authors.initials: M
authors.lastname: Ding
authors.forename: Donglian
authors.initials: D
authors.lastname: Zhong
authors.forename: Fubin
authors.initials: F
authors.lastname: Tang
authors.forename: Wei
authors.initials: W
authors.lastname: Fang
mesh_terms: D004390:Chlorpyrifos / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005506:Food Contamination / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D018520:Plant Shoots / Q000737:chemistry*; D011720:Pyrazoles / Q000032:analysis; D031787:Sasa / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods; D053719:Tandem Mass Spectrometry / Q000379:methods*; D062367:ortho-Aminobenzoates / Q000032:analysis
chemical_list: D010573:Pesticide Residues; D011720:Pyrazoles; D062367:ortho-Aminobenzoates; C517733:chlorantranilipole; D004390:Chlorpyrifos; C082360:fipronil