石墨炉原子吸收分光光度法测定枸杞子中铬含量  

Determination of Chrome in Gouqizi by Graphite Furnace Atomic Absorption Spectrometry

作　　者：倪苓苓 张乾[1] 冯宁 祁星星[1] 

机构地区：[1]石家庄以岭药业股份有限公司,河北石家庄050000 [2]河北圣雪大成制药有限责任公司,河北石家庄050000

出　　处：《亚太传统医药》2014年第8期23-24,共2页Asia-Pacific Traditional Medicine

摘　　要：目的：测定枸杞子中铬的含量。方法：采用石墨炉原子吸收分光光度法测定试样，其在357．9nm波长下的吸收值与铬含量成正比，建立标准曲线计算铬含量。结果：铬含量在0～20ng／mL浓度范围内与其吸光度值呈良好的线性关系，回收率为98％～102％，检出限为0．26ng／mL，RSD为3．0％。结论：石墨炉原子吸收分光光度法测定枸杞子中铬含量灵敏度高，条件可控，重现性好，值得推广使用。Objective： The graphite furnace atomic absorption spectrometry method is adopted for the determination of chrome in Gouqizi. Methods ： The graphite furnace atomic absorption spectrometry method , using standard curve to calculate the content. Re- suits： Linearity range of the method is 0-20 ng/mL. Recovery rate of the method is 98 0% 102 %. Detection limite of the method is 0.26ng/mL. RSD is 3.0 %. Conclusion： the method is sensitive, controllable, reproducible, it is worth spreading.

关 键 词：石墨炉原子吸收分光光度法 枸杞子 铬 含量 

分 类 号：R284.1[医药卫生—中药学]