It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向异构体和差向异构的定义。差向异构在医药和农药中间体中应用广,前景广阔。

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.

结果得到金霉素样品谱图以及谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉素样品中含有四环素、差向异构四环素和差向异构金霉素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了向异构体和向异构化的定义。向异构化技术在医药和农药中间体中应用广,前景广阔。

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.

结果得到金霉液相色谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉中含有四环、向异构四环和向异构金霉杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了向异和向异化的定义。向异化技术在医药和农药间应用广,前景广阔。

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.

结果得到金霉素样液相色谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉素样有四环素、向异四环素和向异金霉素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向构和差向构化的定义。差向构化技术在医药和农药中间中应用广,前景广阔。

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.

结果得到金霉素样品液相色谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉素样品中含有素、差向构素和差向构金霉素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向异构体和差向异构化的定义。差向异构化技术和农中间体中应用广,前景广阔。

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.

结果得到金霉液相色谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉中含有四环、差向异构四环和差向异构金霉杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了向异构和向异构化的定义。向异构化技术在医药和农药间应用广,前景广阔。

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.

结果得到金霉素液相色谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推测金霉素含有四环素、向异构四环素和向异构金霉素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向和差向化的定义。差向化技术在医药和农药中间中应用广,前景广阔。

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谱图以及液相色谱峰对应的一级质谱图。对谱图进行分析归纳,推素样品中含有四环素、差向四环素和差向素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了差向异构和差向异构化的定义。差向异构化技术在医药和农药间用,前景。

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.

果得到金霉素样品液相色谱图以及液相色谱峰对的一级质谱图。对谱图进行分析归纳,推测金霉素样品含有四环素、差向异构四环素和差向异构金霉素杂质组分。

It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .

阐述了向异构向异构化定义。向异构化技术在医药农药中间中应用广,前景广阔。

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.

结果得到金霉素样品液相色谱图以及液相色谱峰对应质谱图。对谱图进行分析归纳,推测金霉素样品中含有四环素、向异构四环素向异构金霉素杂质组分。