微波消解-火焰原子吸收分光光度法测定复方肝浸膏片中铁的含量
目的 建立微波消解-火焰原子吸收分光光度法测定复方肝浸膏片中铁含量的方法。方法 火焰类型选择空气-乙炔, 测定波长为248.3 nm, 狭缝1.8 nm, 灯电流35 mA, 乙炔流量为2.5 L/min, 空气流量 10 L/min。结果 铁在0~6 μg/mL范围内与吸光度呈良好的线性, 线性相关系数r为0.9988, 平均回收率为100.7%, 测定结果的相对标准偏差均小于5.0%。结论 该方法重复性好, 稳定性好, 准确度高, 适用于复方肝浸膏片中铁的含量测定。
Objective To establish a method for determination of iron in compound heparextractum tablets by atomic absorption spectrometry with microwave digestion. Methods Air-acetylene was selected as flame type, measurement wavelength was 248.3 nm, slit was 1.8 nm, lamp current was 35 mA, acetylene flow was 2.5 L/min and air flow was 10 L/min. Results The iron had a good linearity with absorbance in the range of 0?6 μg/mL, the linear correlation coefficientr was 0.9988, the average recovery was 100.7%, and the relative standard deviation of the determination results were less than 5.0%. Conclusion The method has good repeatability, good stability and high accuracy, which is suitable for the determination of iron content in heparextractum tablets.
标题：微波消解-火焰原子吸收分光光度法测定复方肝浸膏片中铁的含量
英文标题：Determination of iron in compound heparextractum tablets by atomic absorption spectrometry with microwave digestion
作者：
王永姣 西安市食品药品检验所
李卓 西安市食品药品检验所
张亚锋 西安市食品药品检验所
陶奕亦 西安市食品药品检验所
李尔春 西安市食品药品检验所
孙晓 西安市食品药品检验所
饶雅琨 西安市食品药品检验所
王涛 西安市食品药品检验所
李荣 西安市食品药品检验所
中文关键词:火焰原子吸收分光光度法,复方肝浸膏片,铁含量,
英文关键词:flame atomic absorption spectrometry,compound heparextractum tablets,iron content,
发表日期：2019-05-22
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