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A comprehensive study on reference material of Imidacloprid in tomato matrix

Nguyen Linh Trang Tran Thi Thu Trang Dinh Hoang Anh Nguyen Thi Thao Nguyen Tran Thi Hong Do Thi Thu Hang Kieu Thi Lan Phuong Dang Huu Cuong Dang Van Ket Nguyen Thi Huyen Le Thi Phuong Thao Le Thi Hong Hao Nguyen Thi Anh Huong Nguyen Thi Minh Hoa
Received: 09 Dec 2023
Revised: 06 Jan 2024
Accepted: 16 Jan 2024
Published: 31 Mar 2024

Article Details

How to Cite
Nguyen Linh Trang, Tran Thi Thu Trang, Dinh Hoang Anh, Nguyen Thi Thao Nguyen, Tran Thi Hong, Do Thi Thu Hang, Kieu Thi Lan Phuong, Dang Huu Cuong, Dang Van Ket, Nguyen Thi Huyen, Le Thi Phuong Thao, Le Thi Hong Hao, Nguyen Thi Anh Huong, Nguyen Thi Minh Hoa. "A comprehensive study on reference material of Imidacloprid in tomato matrix". Vietnam Journal of Food Control. vol. 7, no. 1, pp. 1-11, 2024

Main Article Content


Controlling the level of crop protection chemical residues in food is always a matter of concern. Certified reference materials (CRM) or reference materials (RM) are used in crop protection chemical residue analysis to validate analytical methods and evaluate the quality of measurement results. Imidacloprid is a common crop protection chemical used in tomato crops. A comprehensive study of the production, storage, transport, and utilization of CRM imidacloprid in tomato matrix was conducted. After comparing the two frozen and freeze-dried production processes, the freeze-dried production process was concluded to be superior. The CRM characterization process complies with ISO 17034:2016. The concentration of imidacloprid in tomato CRM is consistent with the maximum residue limit of imidacloprid according to the Codex and regulations of Circular 50/2016/TT-BYT of the Ministry of Health of Vietnam. At 4°C storage temperatures, freeze-dried tomato CRM was predicted to be stable for at least 552 days, while at -20°C the shelf life was at least 704 days.


CRM, RM, tomatoes, imidacloprid.


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