建立了一种通过薄层色谱分析来比较非离子表面活性剂合成中脂肪醇乙氧基化程度用以进行质量控制的快速方法。将原料及反应的中间和最终产物在硅胶板上用Ｖ（乙酸乙酯）∶Ｖ（丙酮）∶Ｖ（水）＝１２∶５∶０．５作流动相进行分离，并用碘蒸气显色后在４６０ｎｍ下扫描。根据组分峰的保留值和积分面积，对扫描色谱图进行定性、定量评价，并通过与表面活性剂质量关联，给出质量控制依据 A rapid method of quality control was developed by comparing the degree of ethoxylation of fatty alcohols in the synthesis of nonionic surfactants by thin layer chromatography. The starting materials and the intermediate and final products of the reaction were separated on a silica gel plate with V (ethyl acetate): V (acetone): V (water) = 12: 5: 0.5 as mobile phase and developed with iodine vapor Scan at 460 nm. According to the retention value and integral area of ​​the component peak, the chromatogram of the scan was qualitatively and quantitatively evaluated, and the quality control was given based on the correlation with the mass of the surfactant