分析测试学报2001,Vol.20Issue(3):89-91,3.
同时测定鱼肉中氯霉素和甲砜霉素残留量的毛细管气相色谱法
Simultaneous Determination of Chloramphenicol and Thiamphenicol in Fish Tissues by Capillary GC- ECD
摘要
Abstract
A gas chromatographic (GC) method is described for the determination of chloramphenicol(CAP) and thiamphenicol(TAP) residues in fish tissues. Samples were extracted with ethyl acetate, and evaporated to dryness. The residues were dissolved in water, defatted with hexane, and passed through a C18 SPE column. The C18 SPE column was eluted with MeOH . The eluate was derivatized with N,O -bis(trimethylsilanyl)trifluoroacetamide(BSTFA)+ 1% trimethylchlorosilane(TMCS). After derivatization, toluene was added to sample, followed by water, to quench the derivatization process. The quantitative determination was performed with an external standard method. The relative standard deviations were 4.5% ~ 11% , and the recoveries were 80% ~ 108% . The correlation coefficient r>0.997.关键词
鱼肉/氯霉素/甲砜霉素/气相色谱法分类
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王建华,陈世山..同时测定鱼肉中氯霉素和甲砜霉素残留量的毛细管气相色谱法[J].分析测试学报,2001,20(3):89-91,3.