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| 黄连素离子选择电极的研制 | |
| 引用本文： | 池华,周同惠. 黄连素离子选择电极的研制[J]. 药学学报, 1983, 18(4): 278-284 |
| 作者姓名： | 池华 周同惠 |
| 作者单位： | 中国医学科学院药物研究所 北京(池华)，中国医学科学院药物研究所 北京(周同惠) |
| 摘 要： | 本工作对黄连素离子选择电极进行了研制。用这种电极测定黄连素有简便快速的特点。膜用聚氯乙烯为基体,邻苯二甲酸二丁酯为增塑剂,黄连素—四苯硼盐为电活性物质。所制成的电极对药根碱,小蘗胺及其它一些生物碱具有一定的选择性,可不经预先分离直接测定片剂中黄连素的含量。 |
| 关 键 词： | 黄连素 离子选择电极 |
| 收稿时间： | 1982-01-28 |
STUDY ON BERBERINE ION SELECTIVE ELECTRODE |
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| CHI Hua and ZHOU Tong-hui. STUDY ON BERBERINE ION SELECTIVE ELECTRODE[J]. Acta pharmaceutica Sinica, 1983, 18(4): 278-284 | |
| Authors: | CHI Hua and ZHOU Tong-hui |
| Abstract: | A new selective electrode sensitive to berberine was developed. It is based on the use of berberine-tetraphenylborate ion-pair complex in polyvinyl chloride membrane, dibutylphthalate being used as the plasticizer. The electrode showed Nernstian respones down to 10-6 M over a pH range of 6.2～11.5 with cationic slope of 57 mV/concentration decade. Selectivity coefficients for jatrorrhizine anal some other alkaloids are small. Direct potentiometric determination of samples and potentiometric titration with rodium tetraphenylborate can be used for the determination of berberine. |
| Keywords: | Berberine Ion selective electrode |
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