Article (Scientific journals)
Chemometric-assisted QuEChERS extraction method for post-harvest pesticide determination in fruits and vegetables
Li, Minmin; DAI, Chao; WANG, Fengzhong et al.
2017In Scientific Reports, 7 (42489), p. 12
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Abstract :
[en] n effective analysis method was developed based on a chemometric tool for the simultaneous quantification of five different post-harvest pesticides (2,4-dichlorophenoxyacetic acid (2,4-D), carbendazim, thiabendazole, iprodione, and prochloraz) in fruits and vegetables. In the modified QuEChERS (quick, easy, cheap, effective, rugged and safe) method, the factors and responses for optimization of the extraction and cleanup analyses were compared using the Plackett–Burman (P–B) screening design. Furthermore, the significant factors (toluene percentage, hydrochloric acid (HCl) percentage, and graphitized carbon black (GCB) amount) were optimized using a central composite design (CCD) combined with Derringer’s desirability function (DF). The limits of quantification (LOQs) were estimated to be 1.0 μg/kg for 2,4-D, carbendazim, thiabendazole, and prochloraz, and 1.5 μg/kg for iprodione in food matrices. The mean recoveries were in the range of 70.4–113.9% with relative standard deviations (RSDs) of less than 16.9% at three spiking levels. The measurement uncertainty of the analytical method was determined using the bottom-up approach, which yielded an average value of 7.6%. Carbendazim was most frequently found in real samples analyzed using the developed method. Consequently, the analytical method can serve as an advantageous and rapid tool for the determination of five preservative pesticides in fruits and vegetables.
Disciplines :
Food science
Author, co-author :
Li, Minmin  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
DAI, Chao ;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture > =LI Minmin
WANG, Fengzhong;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture
KONG, Zhiqiang;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture
HE, Yan;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture
HUANG, Yatao;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture
FAN, BEI;  Institute for the Control of Agrochemicals > Chinese Ministry of Agriculture
 These authors have contributed equally to this work.
Language :
English
Title :
Chemometric-assisted QuEChERS extraction method for post-harvest pesticide determination in fruits and vegetables
Alternative titles :
[en] 比利时
Publication date :
22 February 2017
Journal title :
Scientific Reports
eISSN :
2045-2322
Publisher :
Nature Publishing Group, London, United Kingdom
Volume :
7
Issue :
42489
Pages :
12
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 October 2019

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