Detection method of methyl 3, 5-dimethoxybenzoate

The invention belongs to the technical field of analysis and detection, and provides a detection method of methyl 3, 5-dimethoxybenzoate, which adopts liquid chromatography to detect methyl 3, 5-dimethoxybenzoate, adopts a phosphoric acid aqueous solution and acetonitrile as a mobile phase A for elution, and cooperates with acetonitrile as a mobile phase B, so that the peak pattern can be improved, the separation effect can be improved, and the detection sensitivity can be improved. The separation degree of a main peak and an adjacent impurity peak is not less than 1.5, and the detection method provided by the invention is convenient and simple to operate, and can accurately and quickly detect the purity of 3, 5-dimethoxybenzoic acid methyl ester and the content of impurities. 本发明属于分析检测技术领域，提供了一种3,5-二甲氧基苯甲酸甲酯的检测方法，采用液相色谱对3,5-二甲氧基苯甲酸甲酯进行检测，采用磷酸水溶液和乙腈作为流动相A进行洗脱，配合乙腈作为流动相B，能够改善峰型，改善分离效果，主峰与相邻杂质峰的分离度不小于1.5，且本发明的检测方法操作方便简捷，能够准确、快速地检测3,5-二甲氧基苯甲酸甲酯的纯度和杂质的含量。