| 离子选择性电极测定附子中乌头类生物碱含量的初步研究 |
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| 引用本文： | 徐红雨.离子选择性电极测定附子中乌头类生物碱含量的初步研究[J].西南师范大学学报(自然科学版),1992(1). |
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| 作者姓名： | 徐红雨 |
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| 作者单位： | 西南师范大学化学系 重庆630715 |
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| 摘 要： | 介绍了四苯硼-乌头类生物碱活性物质的制备,用该活性物质研制的石墨涂膜电极及其应用.电极电位在乌头类生物碱10~(-5)～10~(-3)mol·L~(-1)的浓度范围内符合Nernst方程.在pH3～6范围内,电极系数为58±1mV(21℃左右),检测下限为1.8×10~(-6)mol·L~(-1),响应时间为1min左右.应用相对标准工作曲线法,可以直接对乌头类生物碱进行定量测定.
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| 关 键 词： | 乌头碱 四苯硼钠 离子选择电极 |
DETERMINATION OF ACOMTINE IN ACONITUM BY ION-SELECTIVE ELECTRODE |
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| Xu Hongyu.DETERMINATION OF ACOMTINE IN ACONITUM BY ION-SELECTIVE ELECTRODE[J].Journal of Southwest China Normal University(Natural Science),1992(1). |
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| Authors: | Xu Hongyu |
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| Abstract: | It introduced the preparation and application of aconitinc-tctrapiicnylboi-atc-graphitc selective electrode. E'xpermental results'show the performances of this electrode are in accord with Ncrnst equation within the concentration range of 10-5 to 10-3 mol-L-1, with the slope of 58+1 mV at pH 3 to 6. The lower detection limit is 1.8 X 10-9niol L-1. The response time is about one minite. The quantitative determination of aconitinc may be done by using a calibration curve. |
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| Keywords: | ion-selective electrode aconitine sodium tetraphenyboron |
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