【摘要】 利用流动注射在线柱分离技术分离制剂样品中干扰测定的辅料组分，以紫外分光光度法检测，测定单位剂量磷酸可待因片中磷酸可待因的含量，结果与药典法测定的一致。该法精密度（ＲＳＤ）为０．８％（ｎ＝４０），采样量为６０μｌ，分析速度６０样／ｈ，适用于制剂含量均匀度检查及含量测定。更多还原

【Abstract】 A new flow injection system using UV detector and adopting an on-line adsorption column to eliminate the interference of excipients is proposed for the content uniformity test of codeine phosphate tablets.The results obtained with this system agree well with those by the conventional method.The proposed system with a sample volume of 60 μl,sampling frequency of 60/h and precision of 0.8%(RSD,n=40 )is suitable for the content uniformity test and assay of codeine tablets as well as those of other dosage forms.更多还原