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本文报道了强力霉素氢化物传感电极的研制及在分析测试、离解常数测定中的应用。强力霉素氢化物传感电极在pH0.9—2.2响应含质子化二甲胺基的强力霉素氢化物一价阳离子。线性范围为10~(-2.7)～10~(-5)mol/dm~3。检测下限3×10~(-6)mol/dm~8。应用此电极测定强力霉素氢化物及其离解常数效果良好。回收率为(98.3±5.0)％。
This paper reports the development of doxycycline hydride sensing electrode and its application in the determination of analytic test and dissociation constant. The doxycycline hydride sensing electrode responds to the doxycycline hydride monovalent cation containing protonated dimethylamino groups at pH 0.9-2.2. The linear range was 10 ~ (-2.7) ~ 10 ~ (-5) mol / dm ~ 3. Detection limit of 3 × 10 ~ (-6) mol / dm ~ 8. The determination of doxycycline hydride and its dissociation constant with this electrode is effective. The recovery rate was (98.3 ± 5.0)%.