胜利油田研制的一个三元复合驱配方中含有辅助表面活性剂SL 1,这是一种厂家未提供成份的商品表面活性剂。为了分析注入和采出液中SL 1的浓度 ,研制了两种液相色谱柱填料ODS和SAX ,将两柱串联 ,这一双组份表面活性剂流过双柱后产生对称的单一色谱峰 ,从而实现了定量测定。水样中与SL 1共存的物质如Na2 CO3 、主表面活性剂、聚合物及矿化成份不干扰SL 1的测定。所建立的这种HPLC方法的最小检出限为 0 .4mg/L ,线性范围为 5 0— 10 0 0mg/L ,回收率为 95 .7%— 99.8% A ternary complex flooding formula developed by Shengli Oilfield contains the co-surfactant SL 1, a commercial surfactant not supplied by the manufacturer. In order to analyze the concentration of SL 1 in injection and recovery fluid, two liquid chromatography column packing materials, ODS and SAX, were developed. Two columns were connected in series. The two-component surfactant flowed through two columns to generate a single symmetrical peak. In order to achieve a quantitative determination. Substances that coexist with SL 1 in the water sample, such as Na2 CO3, main surfactants, polymers and mineralized components, do not interfere with the determination of SL 1. The established method of this HPLC method has a minimum detection limit of 0.4 mg / L, a linear range of 50-1000 mg / L and a recovery of 95.7% -99.8%