食品中に残存する抗菌性物質に関する研究(第1報)高速液体クロマトグラフィーによるテトラサイクリン系抗生物質の定量

概要

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A simple and reproducible method for the determination of residual tetracyclines (TCs) in livestock products by high-performance liquid chromatography was established. Tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) in a sample were extracted with 5% aquous perchloric acid. The extract was passed through SEP-PAK C_<18> cartridge. After washing the cartridge with water, TCs was eluted with a mixture of N, N-dimethylformamide (DMF)-water (4 : 6) containing 0.02 M phosphoric acid. The eluate was injected on a Li Chrosorb RP-8 column by using a mixture of DMF-water (1 : 4) containing 0.02M phosphoric acid as a mobile phase. The effluent was monitored with a UV detector at a wavelength of 340 nm. The recoveries of TCs from cattle muscle, liver, kidney and milk fortified with 1μg/g of TC and OTC and 2μg/g of CTC were 34.7-52.9% for muscle, 37.7-51.6% for liver, 53.1-68.3% for kidney and 74.8-88.7% for milk, respectively. The quantitative analysis was carried out by the method of standard addition and the minimum detectable amount of TC and OTC was 0.1 ppm and CTC was 0.2 ppm.
社団法人日本薬学会の論文
1984-06-30