Development of Green Onion and Cabbage Certified Reference Materials for Quantification of Organophosphorus and Pyrethroid Pesticides

• Published in: Journal of agricultural and food chemistry Vol. 59; no. 16; pp. 8568 - 8574
• Main Authors: Otake, Takamitsu, Yarita, Takashi, Aoyagi, Yoshie, Kuroda, Youko, Numata, Masahiko, Iwata, Hitoshi, Mizukoshi, Kazushi, Nakamura, Munetomo, Watai, Masatoshi, Mitsuda, Hitoshi, Fujikawa, Takashi, Ota, Hidekazu
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 24.08.2011
• Subjects: Analytical Methods; Biological and medical sciences; Brassica - chemistry; cabbage; certification; chlorpyrifos; cypermethrin; diazinon; etofenprox; fenitrothion; Food industries; Fruit and vegetable industries; Fundamental and applied biological sciences. Psychology; General aspects; green onions; Indicator Dilution Techniques; isotope dilution technique; Japan; mass spectrometry; Mass Spectrometry - methods; Methods of analysis, processing and quality control, regulation, standards; metrology; Onions - chemistry; Organophosphorus Compounds - analysis; permethrin; pesticide residues; Pesticide Residues - analysis; Pyrethrins - analysis; Reference Standards; Reproducibility of Results; Japan; cabbage; green onion; certified reference material; pesticide; Quality assurance/quality control; certification; Vegetables; Onion; Reference; Materials; Pesticides; Pyrethroids; Certification; Green cabbage; Quality assurance; Quality control; Development; Green; Quantitative analysis
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf201820u

Green onion and cabbage certified reference materials for the analysis of pesticide residues were issued by the National Metrology Institute of Japan, part of the National Institute of Advanced Industrial Science and Technology. Green onion and cabbage samples were grown so as to contain several kinds of organophosphorus and pyrethroid pesticides, and those were collected from a field in the Kochi Prefecture in Japan. The certification was carried out by using multiple analytical methods to ensure the reliability of analytical results; the values of target pesticides (diazinon, fenitrothion, cypermethrin, etofenprox, and permethrin for green onion and chlorpyrifos, fenitrothion, and permethrin for cabbage) were obtained by isotope dilution mass spectrometry. Certified values of target pesticides were 0.96–13.9 and 2.41–6.9 mg/kg for green onion and cabbage, respectively. These are the first green onion and cabbage powder certified reference materials in which organophosphorus and pyrethroid pesticides are determined.