| 火焰原子吸收光谱法测定锁阳中15种金属元素含量 |
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| 引用本文： | 薛国庆,刘青,任雪峰,韩玉琦.火焰原子吸收光谱法测定锁阳中15种金属元素含量[J].光谱学与光谱分析,2004,24(11):1461-1463. |
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| 作者姓名： | 薛国庆 刘青 任雪峰 韩玉琦 |
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| 作者单位： | 河西学院化学系,甘肃,张掖,734000;甘肃有色地质勘探四队,甘肃,张掖,734012 |
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| 基金项目： | 甘肃省科技攻关项目(2GS035A4304805)资助 |
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| 摘 要： | 采用浓硝酸高氯酸(φ∶4∶1)常压微沸条件下消解锁阳样品,应用火焰原子吸收法测定了锁阳中的金属元素Na,K,Mg,Ca,Cu,Zn,Fe,Co,Ni,Mn,Pb,Cr,Cd,Au,Ag含量,研究了测定不同元素的仪器最佳工作条件、方法的准确性和精密度。结果表明,锁阳中Na,K,Mg,Ca,Fe,Zn,Cu,Mn,Pb,Ni,Ag含量分别为135720,142600,3583,1683,2385,194,59,34,26,13,04μg·g-1,Co,Cr,Cd,Au未检出。方法的加标回收率为978%～1045%,相对标准偏差(n=9)为02%～50%。测定方法简单易行,方便快捷,结果令人满意。
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| 关 键 词： | FAAS法 锁阳 微量元素 |
| 文章编号： | 1000-0593(2004)11-1461-03 |
| 修稿时间： | 2003年6月18日 |
Determination of Fifteen Metal Elements in Cynomorium Songaricum by Flame Atomic Absorption Spectrophotometry(FAAS) |
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| XUE Guo qing ,LIU Qing ,REN Xue feng ,HAN Yu qi.Determination of Fifteen Metal Elements in Cynomorium Songaricum by Flame Atomic Absorption Spectrophotometry(FAAS)[J].Spectroscopy and Spectral Analysis,2004,24(11):1461-1463. |
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| Authors: | XUE Guo qing LIU Qing REN Xue feng HAN Yu qi |
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| Institution: | Department of Chemistry, Hexi University, Zhangye 734000, China. |
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| Abstract: | A FAAS method was established for the determination of Na, K, Mg, Ca, Cu, Zn, Fe, Mn, Ni, Co, Pb, Cr, Cd, Ag and Au in Cynomorium songaricum after digestion with HNO3-HClO4 (phi 4:1) at 90-95 degrees C and at normal pressure. In this paper, the parameters in FAAS were studied. The analytical results of Na, K, Mg, Ca, Fe, Zn, Cu, Mn, Pb, Ni and Ag were 13,572.0, 14,260.0, 358.3, 168.3, 238.5, 19.4, 5.9, 3.4, 2.6, 1.3 and 0.4 microg x g(-1) respectively and Co, Cr, Cd and Au were not found in the samples. The results showed that the recovery of standard addition was 97.8%-104.5%, and the relative standard deviation (n = 9) was 0.2%-5.0%. The method is fast, simple and convenient. The results were satisfactory. |
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| Keywords: | FAAS Cynomorium Songaricum Trace element |
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