【摘要】 采用电位滴定法测定市洛芬精氨酸盐的含量。在非水溶液中用高氯酸标准溶液滴定，通过滴定过程中指示电极电位突跃，用二级微商内差法计算，确定终点，并根据有关公式计算其含量。平均回收率为99．5％（RSD=0．25％，n＝6）。测得3批样品的含量分别为99．61％、98．39％和98．98％。更多还原

【Abstract】 Arginine salt of ibuprofen was determined by potentiometric titraion. The average recovery was 99. 54% (RSD = 0. 25%, n = 6). The content of arginine salt of ibuprofen was respectively 99. 61%, 98. 39%and 98. 98% for three samples.更多还原