Multi-residue method for determination of veterinary drugs and feed additives in meats by HPLC
2007
Chonan, T.(Hokkaido. Inst. of Public Health, Sapporo (Japan)) | Fujimoto, T. | Ueno, K. | Tazawa, T. | Ogawa, H.
A simple and rapid multi-residue method was developed for the determination of 28 kinds of veterinary drugs and feed additives (drugs) in muscle of cattle, pig and chicken. The drugs were extracted with acetonitrile-water (95:5) in a homogenizer and ultrasonic generator. The extracted solution was poured into an alumina column and the drugs were eluted with acetonitrile-water (90:10). The eluate was washed with n-hexane saturated with acetonitrile and then evaporated. The drugs were separated on a Inertsil ODS-3V column (4.6 mm i.d. x 250 mm) with a gradient system of 0.1% phosphoric acid-acetonitrile as the mobile phase, with monitoring at 280 and 340 nm. The recoveries of the 26 kinds of drugs were over 60% from the meats fortified at 0.1 micro g/g, and the quantification limits of most drugs were 0.01 micro g/g. This proposed method was found to be effective and suitable for the screening of the above drugs in meats.
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