QuEChERS technique followed by GC-MS for trace detection of pesticides in vegetables and fruits
Vol. 132 No. 1A (2023), Original Article
Vol. 132 No. 1A (2023)

QuEChERS technique followed by GC-MS for trace detection of pesticides in vegetables and fruits

Original Article
https://doi.org/10.26459/hueunijns.v132i1A.7048
Published 2023-03-31
Huynh Thi Tuy Ngoc
Center for Testing Drugs, Cosmetics, and Foods, Thua Thien Hue Province, 17 Truong Dinh St., Hue, Vietnam
Nguyen Dang Giang Chau*
Faculty of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
PDF (Vietnamese)

Keywords

QuEChERS
pesticides
agricultural products
dispersive solid phase extraction QuEChERS
hóa chất bảo vệ thực vật
nông sản
chiết phân tán

How to Cite

1.
Huỳnh TTN, Châu N Đăng G. QuEChERS technique followed by GC-MS for trace detection of pesticides in vegetables and fruits. hueuni-jns [Internet]. 2023Mar.31 [cited 2024Jul.3];132(1A):111-2. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7048
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Abstract

Pesticide residues in agricultural products are an essential measure to assess food safety. In this study, we successfully developed and validated an effective analytical method for the simultaneous determination of nine new-generation pesticides in vegetables and fruits. We employed the QuEChERS sample preparation technique, using MgSO4 and sodium acetate trihydrate for the initial clean-up step, followed by dispersive solid-phase extraction with PSA and GCB adsorbents, to remove all impurities in the sample matrix. GC-MS was then utilized for qualitative and quantitative analysis. The method exhibited a low detection limit for analytes (3–8 µg·kg–1), a 70–120% recovery, good repeatability, and good linearity. We applied the technique in practice to analyze 16 vegetable and fruit samples collected at markets in Thua Thien Hue province and found that the residues of some pesticides were at high levels.

https://doi.org/10.26459/hueunijns.v132i1A.7048
PDF (Vietnamese)

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