Surveillance of Chlorantraniliprole Residues in Vegetables and Fruits Using LC-MS/MS

• Published in: Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) Vol. 59; no. 5; pp. 234 - 238
• Main Authors: Nakajima, Takayuki, Otsuka, Kenji, Tomizawa, Sanae, Masubuchi, Tamako, Kamijo, Kyoko, Yamaki, Yumiko, Yoshikawa, Souichi, Hasegawa, Emi, Kokaji, Yoshie, Watanabe, Shui, Hashimoto, Tsuneo
• Format: Journal Article
• Language: English
• Published: Japan Japanese Society for Food Hygiene and Safety 25.10.2018; Japan Science and Technology Agency
• Subjects: chlorantraniliprole; Chromatography, Liquid; detection rate; Food Analysis - methods; Food Contamination - analysis; Fruit - chemistry; Fruits; insecticide; LC-MS/MS; Okra; ortho-Aminobenzoates - analysis; Pesticide Residues - analysis; Spinach; Tandem Mass Spectrometry; Vegetables; Vegetables - chemistry; detection rate; LC-MS/MS; insecticide; chlorantraniliprole
• ISSN: 0015-6426; 1882-1006
• DOI: 10.3358/shokueishi.59.234

We measured the residual amounts of chlorantraniliprole in various vegetables and fruits. Sample solutions were prepared according to our routine procedure based on the QuEChERS method and analyzed by LC-MS/MS. Performance characteristics were evaluated for 8 kinds of food samples by means of recovery tests of 5 replicates at the concentration of 10 ng/g. Recoveries and RSDs (％) ranged from 50.2 to 93.4％ and from 2.1 to 9.7％, respectively. Application of this method to survey 207 vegetables and 163 fruits gave detection rates of 8.2 and 1.2％, respectively. In vegetables, detection rates were high in okra (4 out of 10 samples), paprika (4 out of 23 samples) and tomato (2 out of 6 samples), and leaf vegetables such as lettuce, mizuna, spinach and wrinkled greens also contained high concentrations of chlorantraniliprole. The highest residual concentration was 571 ng/g in mizuna. The samples containing chlorantraniliprole seemed to be mainly from Asian countries, including samples of domestic Japanese origin. However, none of them contained more than the MRL, which suggests that the use of chlorantraniliprole has been properly controlled.