农药学学报2012，Vol.14Issue(4)：423-428,6.DOI:10.3969/j.issn.1008-7303.2012.04.11
烯啶虫胺在柑橘和土壤中的残留及消解动态
Residue decline study of nitenpyram in orange and soil
付岩 1林婷 2陈梦丽 1桂文君 1朱国念1
作者信息
- 1. 浙江大学农药与环境毒理研究所,杭州310029
- 2. 浙江大学新农农药剂型技术开发有限公司,杭州310029
- 折叠
摘要
Abstract
A rapid, accurate and sensitive method has been developed to determine nitenpyram residues in orange and soil samples by UPLC-MS/MS. The degradation dynamics of nitenpyram residues in orange and soil were studied under condition of field trials. The samples were extracted by acetonitrile or methanol, and detected by UPLC-MS/MS. External reference method was used for quantitative determination. The linearity was satisfied (r >0.99) in the concentration range of 0. 1 - 5 mg/L. The limit of detection was 1. 0 × 10 -11 g,and the limit of quantification in orange and soil was 0.05 mg/kg. The average fortified recoveries varied from 70. 8% to 104. 1% and relative standard deviation varied from 4. 7% to 12. 3% when nitenpyram was spiked at 0. 05 -2 mg/kg level in various matrixes. The study of residue dynamics indicated that the decline curve accorded with the first-order kinetics equation,and the half-life of nitenpyram in orange and soil were 3. 4 - 10. 7 d and 1.8 -5.4 d, respectively.关键词
超高效液相色谱-串联质谱/烯啶虫胺/柑橘/土壤/残留Key words
UPLC-MS/MS/ nitenpyram/ orange/ soil/ residues分类
化学化工引用本文复制引用
付岩,林婷,陈梦丽,桂文君,朱国念..烯啶虫胺在柑橘和土壤中的残留及消解动态[J].农药学学报,2012,14(4):423-428,6.
