【摘要】 本文研究了一种简便、加速测定间羟基苯甲酸的高效液相色谱法。以甲醇水溶液为流动相，２３０ｎｍ处紫外检测。方法的标准偏差为０．１９％，变异系数为０．１９％；标准加入法回收率为９８．３％～１０１．２％。更多还原

【Abstract】 A simple and rapid method for the detrmination of m - hydroxy benzoic acid by HPLC is described. The W phase consists of methanol- water(70/30. v/v). and the effluent is monitored at 230nm. The standard derivation of the method is 0. 19% and the recoveries are 98.3% - 101 .2%.更多还原