ORIGINAL RESEARCH
Detection of Frequently Used Pesticides in Apple
Orchard Soil in China by High Resolution Mass
Spectrometry
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1
Key Laboratory for Environmental Factors Control of Agro-Product Quality Safety, Agro-Environmental
Protection Institute, Ministry of Agriculture, Tianjin, P.R. China
2
Research Center for Analytical Sciences, College of Sciences, Northeastern University, Shenyang, P.R. China
3
CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology,
Chinese Academy of Sciences, Qingdao, P.R. China
4
College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
Submission date: 2019-01-17
Final revision date: 2019-03-21
Acceptance date: 2019-04-14
Online publication date: 2019-10-07
Publication date: 2020-01-16
Corresponding author
Zongshan Zhao
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, China
Pol. J. Environ. Stud. 2020;29(2):1341-1350
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ABSTRACT
In this study, 10 frequently used pesticides in apple orchards from the major apple production area of
China were identified through 150 questionnaires. Based on Orbitrap high-resolution mass spectrometry,
a method for detecting these pesticides in soils was developed. Typically, these compounds can be
extracted from dry soil samples using dichloromethane: acetone (2:1, v:v) and purified by dispersive
solid-phase extraction (PSA and C18). The qualitative and quantitative analyses can be undertaken by
monitoring the MS1 precursor ions under full scan mode within a mass error of <5 ppm (resolution
120000). The recoveries ranged from 68.4% to 102.4% (SD<10.5%), the matrix effects induced signal
fluctuation was less than 10%, and the intra- and inter-day precisions were all below 5%. For 14 surface
soil samples randomly collected from an apple orchard in China, most pesticides presented the highest
detection frequencies (100%), with imidacloprid and tebuconazole showing the highest residue levels
(4.1-39.1 and 9.8-350.2 ng/g dry weight, respectively). Compared with previous methods for analyzing
individual or several pesticides, the proposed method represents a promising means of investigating
these frequently used pesticide residues in apple orchards in China.