RESULTS The chlortetracycline's epimer, tetracycline and its epimer, as impurities in chlortetracycline have been determined by the liquid chromatogram and its first order mass spectrum.
结果得到
霉素样品液相色谱
以及液相色谱峰对应的一级质谱
。对谱

分析归纳,推测
霉素样品中含有
素、差向异构
素和差向异构
霉素杂质组分。



