分光光度法测定黄根片中铝的含量  

Determination of the Content of Al in Huanggen Tablet by Spectrophotometry

作　　者：宋成岩[1] 刘昌松 郑光浩[1] 关丽萍[1] 

机构地区：[1]延边大学药学院,吉林延吉133000 [2]吉林中医药学校药理教研室,吉林临江134300

出　　处：《时珍国医国药》2006年第4期554-554,共1页Lishizhen Medicine and Materia Medica Research

摘　　要：目的 该文采用铝试剂-分光光度法测定黄根片中铝的含量。方法 在醋酸-醋酸铵缓冲系（pH6．2）中，铝-铝试剂生成红色配合物，在25℃，最大吸收波长为510nm处测吸光度。结果 此法线性范围0．004～0．032mg／ml，r=0．9985，平均回收率为96．97％，RSD为0．70％（n=5）。结论 用该方法可测量中药中铝的含量，方法简便，灵敏度和准确度较高，结果满意。Objective The content of Al reagent in huanggen tablet was determined by Spectrophotometry. Methods Al-A1 reagent react to the red complex compound in the acetic acid - ammonium acetate（ pH 6.2）. The detection wavelength was set at 510 nm and temperature at 25℃. Results The method was linear within the range of 0.004 - 0. 032 mg/ml and r was 0. 998 5. The average recovery of assay was 96.97% and RSD was 0.70% （ n = 5）. Conclusion The method appeared to be simple, highly accurate. It canbe used for the determination of the content of Al in huanggen tablet.

关 键 词：黄根 铝 分光光度法 黄根片 

分 类 号：R284[医药卫生—中药学]