Bulletin of Environmental Contamination and Toxicology

, Volume 88, Issue 6, pp 885–890

Determination of Six Neonicotinoid Insecticides Residues in Spinach, Cucumber, Apple and Pomelo by QuEChERS Method and LC–MS/MS

  • Fengzu Zhang
  • Yanjie Li
  • Chuanshan Yu
  • Canping Pan
Article

DOI: 10.1007/s00128-012-0579-x

Cite this article as:
Zhang, F., Li, Y., Yu, C. et al. Bull Environ Contam Toxicol (2012) 88: 885. doi:10.1007/s00128-012-0579-x

Abstract

A modified QuEChERS and LC–MS/MS method has been developed for the simultaneous determination of residues of six neonicotinoids in various crops, including spinach, cucumber, apple and pomelo. The method showed good linearity (R2 ≥ 0.9995) and precision (RSD ≤ 14.0%). Average recoveries of the six neonicotinoids ranged between 73.7% and 103.8% at spiking levels 0.005, 0.1 and 1 mg kg−1. The LODs and LOQs were in the ranges of 0.20–0.85 μg kg−1 and 0.66–2.84 μg kg−1, respectively. The method was satisfactorily validated for the analysis of 50 agricultural samples. Imidacloprid and imidaclothiz were detected at concentration levels ranging from 7 to 5.3 μg kg−1.

Keywords

NeonicotinoidInsecticideQuEChERSLC–MS/MS

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Fengzu Zhang
    • 1
  • Yanjie Li
    • 1
  • Chuanshan Yu
    • 1
  • Canping Pan
    • 1
  1. 1.Department of Applied Chemistry, College of ScienceChina Agricultural UniversityBeijingPeople’s Republic of China