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任乃林, 陈宜菲, 韩大雄. 极谱法测定阿莫西林胶囊的含量[J]. 分析测试技术与仪器, 2004, (1): 50-52.
引用本文: 任乃林, 陈宜菲, 韩大雄. 极谱法测定阿莫西林胶囊的含量[J]. 分析测试技术与仪器, 2004, (1): 50-52.
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REN Nai-lin, CHEN Yi-fei, HAN Da-xiong. Determination of Amoxicillinum in Content Capsules by Polarography[J]. Analysis and Testing Technology and Instruments, 2004, (1): 50-52.
Citation: REN Nai-lin, CHEN Yi-fei, HAN Da-xiong. Determination of Amoxicillinum in Content Capsules by Polarography[J]. Analysis and Testing Technology and Instruments, 2004, (1): 50-52.
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极谱法测定阿莫西林胶囊的含量

Determination of Amoxicillinum in Content Capsules by Polarography

    摘要
  • 摘要: 在0.2 mol/L NH3·H2O-NH4Cl支持电解质中(pH=9.00),Cu(Ⅱ)-阿莫西林的配合物在-0.805 V产生灵敏的极谱吸附波,其二阶导数波高与阿莫西林浓度在.0×10-7～8.0×10-5 mol/L范围内成线性关系,检出限为2×10-7 mol/L. 据此建立了测定阿莫西林的新方法,此法已成功地用于药物中阿莫西林的测定.

     

    Abstract: A new and sensitive polarographic wave caused by Cu(Ⅱ) amoxicillinum complex in 0.2 mol/L NH3·H2O NH4Cl(pH=9.00) medium has been investigated. The polargraphic wave is characterized by an adsorptive reduction wave and the peak potential is about-0.805 V (vs.SCE). The peak height is linear with amoxicillinum concentration over a range of 3.0×10-7 to 8.0×10-5 mol/L,and the detection limit is 2×10-7 mol/L. The method has been developed for the determination of amoxicillinum in capsules.

     

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