A RP-HPLC absolute calibration curve method for the determination of Regent. Results showed that the standard deviation was 0.052,the variation coefficient was 0.94% and average recovery was 99.9%.

• 利用反相高效液相色谱外标法测定了锐劲特的含量 ；方法的标准偏差为 0 .；0 52；变异系数为 0