Method: Protein in serum sample was precipitaed with saturated ammonium sulfate and then extracted by methanol, pseudoephedrine salicylate was measured by RP-HPLC. 方法:血清样品分别用硫酸铵沉淀蛋白,甲醇提取,用反相高效液相色谱法测定伪麻黄碱水杨酸盐。
The shear viscosities of a turbulence drag-reducing cationic surfactant solution, cetyltrimethyl ammonium chloride ( CTAC)/ sodium salicylate ( NaSal) aqueous solution were measured with ARES rheometer. 利用ARES流变仪对具有湍流减阻作用的阳性界面活性剂CTAC/NaSal水溶液的剪切黏度进行了测量。