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| 白虎汤中钙元素的化学形态分析 | |
| 引用本文： | Lü P,Li X,Chen JW. 白虎汤中钙元素的化学形态分析[J]. 光谱学与光谱分析, 2010, 30(10): 2824-2826. DOI: 10.3964/j.issn.1000-0593(2010)10-2824-03 |
| 作者姓名： | Lü P Li X Chen JW |
| 作者单位： | 南京中医药大学药学院,江苏,南京,210046;南京中医药大学药学院,江苏,南京,210046;南京中医药大学药学院,江苏,南京,210046 |
| 基金项目： | 国家科技部"十一五"支撑计划项目,江苏省中药炮制重点实验室课题项目 |
| 摘 要： | 应用螫合树脂、阳离子交换树脂以及有机溶剂萃取等分离方法对白虎汤水煎液中Ca的不同形态进行富集分离,采用电感耦合等离子体原子发射光谱法(ICP-AES)对不同形态的Ca含量进行测定,钙元素的检出限为0.038μg·mL-1.,RSD为1.5%,离子态和无机态的回收率分别为95.4%和91.8%.白虎汤水煎液中可溶性Ca的离子态比例为83.25%,有机结合态比例为23.79%,其中含有少量的稳定结合态.白虎汤水煎液中溶出的Ca是以离子态为主,多种形态共同存在的复杂水溶平衡体系. |
| 关 键 词： | 白虎汤 石膏 钙 化学形态 ICP-AES |
Study on the speciation of calcium in Baihu decoction |
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| Lü Pei,Li Xiang,Chen Jian-wei. Study on the speciation of calcium in Baihu decoction[J]. Spectroscopy and Spectral Analysis, 2010, 30(10): 2824-2826. DOI: 10.3964/j.issn.1000-0593(2010)10-2824-03 | |
| Authors: | Lü Pei Li Xiang Chen Jian-wei |
| Affiliation: | College of Pharmacy, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China. sanshanxiansheng@163.com |
| Abstract: | A method for speciation analysis of calcium in Baihu decoction was presented. The six different forms of Ca in the filtrate including free ions, non-free ions, exchangeable, non-exchangeable, organic and inorganic were separated by using ion-exchange resin (IER), chelating resin and organic solvent extraction. Various forms of Ca were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The recovery for the method is 90.0%-110.0%. The result showed that baihu decoction extract was a kind of complex solution, in which 83.25% of Ca existed in free ions form and 23.79% of Ca existed in organic form in the soluble filtrate. |
| Keywords: | ICP-AES |
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