GF-AAS DETERMINATION OF LEAD AND CADMIUM IN “KUHUANG” INJECTION AND ITS RAW CHINESE TRADITIONAL MEDICINES
摘 要
应用石墨炉原子吸收光谱(GF-AAS)法测定了苦黄注射液及其生中药材中铅及镉量.试样用浓硝酸及过氧化氢消解.对仪器的工作条件,包括波长、光谱带宽、灰化温度及原子化温度,作了试验和优化.选用柠檬酸作为基体改进剂,对大黄、茵陈、柴胡、苦参及“苦黄”注射液等试样中的铅及镉量作了测定,分析结果的相对标准偏差均小于4.4%.按标准加入法作了回收率试验,测得值在96%~110%之间.
Abstract
GF-AAS was applied to the determination of lead and cadmium in Kuhuang injection and its raw Chinese traditional medicines.The sample was digested with conc.HNO3 and H2O2.The working conditions of the instrument,including the wavelength,width of spectral band,ashing temperature,and ashing temperature,were studied and optimized.Citric acid was selected as matrix modifier.Samples of Chinese rhubarb,capillary artemisia,bilter ginseng,root of Chinese thorowax and “Kuhuang” injection were analyzed for their lead and cadmium contents,and RSD′s less than 4.4% were found.Recovery tested by the standard addition method gave values in the range of 96% to 110.0%.
中图分类号 O657
所属栏目 工作简报
基金项目 江苏省教育厅06KJG150005
收稿日期 2005/10/28
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备注宗水珍(1964-),女,江苏昆山人,硕士,副教授,主要从事无机及分析化学的教学与科研工作.
引用该论文: ZONG Shui-zhen,WANG Xue-ying,ZANG Hong-hui. GF-AAS DETERMINATION OF LEAD AND CADMIUM IN “KUHUANG” INJECTION AND ITS RAW CHINESE TRADITIONAL MEDICINES[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(11): 892~893
宗水珍,汪学英,臧红辉. 石墨炉原子吸收光谱法测定苦黄注射液及其中药材中的铅和镉[J]. 理化检验-化学分册, 2006, 42(11): 892~893
被引情况:
【1】彭友娣, "半消解-石墨炉原子吸收光谱法测定土壤中镉",理化检验-化学分册 45, 363-364(2009)
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