火焰原子吸收分光光度法测定酸枣仁中金属元素的含量

目的]探讨酸枣仁中金属元素与药物药效关系。方法]以酸枣仁为试材，对样品进行硝化处理，采用火焰原子吸收分光光度计分别测定各标准系列工作液，绘制标准曲线，采用火焰原子分光光度法测定样品溶液中Cr、Cu、Zn、Mn、Ni的含量，将样品稀释10倍后测定K、Ca、Na、Mg、Fe的含量，加10％的La（NO3）3抗干扰以测定K、Na、Ca、Mg的含量。结果]酸枣仁中含有丰富的金属元素，Mg、Cr、Mn、Ni、Cu、Zn元素含量高于其他中草药。采用火焰原子吸收分光光度法测定酸枣仁的金属元素具有准确度高、操作方便、稳定性好、重现性好的特点，回收率为97．33％-103．15％，能满足中药微量元素检测的需要，可用于同一样品分析多种元素。结论]该研究为进一步开发和利用中药酸枣仁提供科学依据。

Content Determination of Metal Elemerits in Spine Date Seeds by Flame Atomic Absorption Spectrophotometry

Objective]The study aimed to diScuSS the relationship between metal elements in spine date seeds and drug efficacy. Method]With spine date seeds as the tested materials,they were made for nitrification treatment.The working fluid of each standard series was measuredby flame atomic absorption spectrophotometer and the standard curve was drawn.The contents of Cr,Cu,Zn,Mn,Ni of sample solution were de-termined by flame atomic absorption spectrophotometry,the contents of K,Ca,Na,Mg,Fe were determined with sam...