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.
结果得到素样品液相色图以及液相色应的一级质图。图进行分析归纳,推素样品中含有四环素、差向异构四环素和差向异构素杂质组分。
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.
结果得到素样品液相色图以及液相色应的一级质图。图进行分析归纳,推素样品中含有四环素、差向异构四环素和差向异构素杂质组分。
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