用火焰原子吸收光谱法测定熟地黄和车前子中6种金属元素的质量比

J4 ›› 2010, Vol. 48 ›› Issue (03): 499-502.

用火焰原子吸收光谱法测定熟地黄和车前子中6种金属元素的质量比

毕淑云¹, 闫丽丽¹| 李宁辉², 王强¹

1. 长春师范学院化学学院, 长春 130032|2. 长春师范学院国际交流学院, 长春 130032

收稿日期:2009-07-25 出版日期:2010-05-26 发布日期:2010-05-19
通讯作者: 毕淑云 E-mail:sy_bi@sina.com

Determination of the Mass Ratios of 6 Microelements in Rehmannia glutinosa Libosch and Semen plantaginis by Flame Atomic Absorption Spectrometry

BI Shuyun¹, YAN Li\|li¹, LI Ninghui², WANG Qiang¹

1. College of Chemistry, Changchun Normal University, Changchun 130032, China;2. College of International Exchange, Changchun Normal University, Changchun 130032, China

Received:2009-07-25 Online:2010-05-26 Published:2010-05-19
Contact: BI Shuyun E-mail:sy_bi@sina.com

摘要/Abstract

摘要：

运用火焰原子吸收光谱法测定熟地黄和车前子中Cu,Zn,Fe,Mn,Ca,K的质量比. 结果表明: 用V(HNO3) ∶〖KG-*3〗V(HClO4)=4的混酸作消化液处理样品, 在选定的实验条件下, 各元素间互不干扰, 可在一份样品液中进行6种元素的分别测定; 熟地黄中各元素的质量比顺序为: K>Ca>Zn>Fe>Cu>Mn；车前子中各元素的质量比顺序为: K>Zn>Ca>Fe>Cu>Mn; RSD<2.40%（n=7）, 加标回收率为91.31%～106.87%.

关键词: 火焰原子吸收谱；熟地黄；车前子；微量元素

Abstract:

The mass ratios of six microelements (Cu,Zn,Fe,Mn,Ca and K) in Rehmannia glutinosa Libosch and Semen plantaginis were determined by flame atomic absorption spectrometry with the mixed acid of HNO₃HClO₄ (4 ∶1) as the digesting solution. The optimal working conditions of the instruments used to determine the different elements were studied. The elements in these two sample solutions did not interfere with each other under the given experimental conditions, so the six elements can be examined in the same preparation solution. The results show that K>Ca>Zn>Fe>Cu>Mn in Rehmannia glutinosa Libosch and K>Zn>Ca>Fe>Cu>Mn in Semen plantaginis. The accuracy and precision of the method were examined. RSD<2.40%（n=7）, the recovery is 91.31%～106.87% for these elements.

Key words: flame atomic absorption spectrometry, Rehmannia glutinosa Libosch, Semen plantaginis; microelement

中图分类号:

O657.3

毕淑云, 闫丽丽, 李宁辉, 王强. 用火焰原子吸收光谱法测定熟地黄和车前子中6种金属元素的质量比[J]. J4, 2010, 48(03): 499-502.

BI Chu-Yun, YAN Li-Li, Li-Ning-Hui, WANG Jiang. Determination of the Mass Ratios of 6 Microelements in Rehmannia glutinosa Libosch and Semen plantaginis by Flame Atomic Absorption Spectrometry[J]. J4, 2010, 48(03): 499-502.