| 甲基橙催化褪色光度法测定阿莫西林 |
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| 引用本文： | 熊海涛. 甲基橙催化褪色光度法测定阿莫西林[J]. 陕西理工学院学报(自然科学版), 2012, 0(1): 68-72 |
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| 作者姓名： | 熊海涛 |
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| 作者单位： | 陕西理工学院化学与环境科学学院 |
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| 基金项目： | 陕西理工学院引进人才科研启动基金资助项目(SLGQD0510) |
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| 摘 要： | 在硫酸介质中,阿莫西林可以催化溴酸钾氧化甲基橙使其褪色,且褪色程度(△A)与阿莫西林浓度在一定范围内符合朗伯-比尔定律,据此建立了催化光度法测定阿莫西林的新方法。在最优试验条件下,阿莫西林含量在0.70～9.0μg/mL范围内与吸光度呈良好的线性关系,检出限0.33μg/mL,回收率在96%～104%之间。可用于胶囊中阿莫西林含量的测定,结果满意。
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| 关 键 词： | 阿莫西林 溴酸钾 甲基橙 催化光度法 |
Catalytic fade spectrophotometric determination of amoxicillin with helianthine system |
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| XIONG Hai-tao. Catalytic fade spectrophotometric determination of amoxicillin with helianthine system[J]. Journal of Shananxi University of Technology(Natural Science Edition), 2012, 0(1): 68-72 |
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| Authors: | XIONG Hai-tao |
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| Affiliation: | XIONG Hai-tao (School of Chemistry and Environment Science,Shaanxi University of Techonology,Hanzhong 723001,China) |
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| Abstract: | Based on the catalytic effects of amoxicillin on the oxidation reactions of helianthine by potassium bromate under sulphuric acid medium and the fading obeyed the Lambert-Beer law with the concentration of amoxicillin in a certain range,a new catalytic spectrophotometric method was developed.Under the optimal conditions,the detection limit for amoxicillin was 0.33 μg/mL and the recovery rate was 96%~104%.And the linear range for amoxicillin was 0.70~9.00 μg/mL.The method has been applied to determine amoxicillin in capsule with satisfying results. |
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| Keywords: | amoxicillin potassium bromate helianthine catalytic spectrophotometry |
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