vinyl methoxycinnamate

A high performance liquid chromatographic method for simultaneous determination of eugenol, ligustilide and ethyl p-methoxycinnamate in wujiapi healthcare wine is reported.

建立了用高效液相色谱法测定五加皮保健酒中丁香酚、藁本内酯、对甲氧基桂皮酸乙酯含量的方法 ,并对五加皮保健酒样品进行了检测。

7 MPa,mass fraction of MMAO(based on methyl laurate)3%,relative molecular mass distribution selectivity coefficient of product methyl laurate polyoxyethylene ether was 18.

在此条件下得到的月桂酸甲酯聚氧乙烯醚的相对分子质量分布较窄,当环氧乙烷平均聚合度为5时,月桂酸甲酯聚氧乙烯醚的相对分子质量分布选择性系数为18。