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[Analytical method of cereulide in processed cereal-based foods and milk powder by LC-MS/MS]. 2011
Yoh-ichi Yatsukawa, and
Hanako Iida, and
Kazuko Nagata, and
Masashi Miyamoto, and
Takahiro Matsuda, and
Hironobu Ito, and
Munetomo Nakamura, and
Kazuhiro Fujita
Saito Laboratory, Japan Food Research Laboratories, Ibaraki-shi, Osaka, Japan. yatsukaway@jfrl.or.jp
An LC-MS/MS method for analysis of cereulide, an emetic toxin produced by Bacillus cereus, was developed. Cereulide was extracted from samples, fried rice, pan-fried noodles, red bean paste and baby formula, with methanol and purified using Oasis HLB cartridges. LC separation was performed on a C18 column with a mixture of formic acid solution and methanol containing ammonium formate as a mobile phase, and the mass spectrometer was operated in the positive electrospray ionization mode. Performance evaluation showed that trueness was higher than 70% and repeatability and reproducibility were within 10%. The limits of quantification were lower than 1 µg/kg.
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