A Highly Sensitive Resonance Rayleigh Scattering Method for the Determination of Penicilli

A Highly Sensitive Resonance Rayleigh Scattering

Method for the Determination of Penicillin Antibiotics with Potassium Ferricyanide

DUAN Hui;LIU Zhong-Fang;LIU Shao-Pu;KONG Ling

【期刊名称】《中国化学（英文版）》 【年(卷),期】2008(026)002

【摘要】Heated in a boiling water bath, penicillin antibiotics such as amoxicillin, ampicillin, sodium cloxacillin, sodium carbenicillin and sodium benzylpenicillin could react with K3[Fe(CN)6] to form combined products in a dilute HCl medium.As a result, resonance Rayleigh scattering (RRS) intensity was enhanced greatly and new RRS spectra appeared.The maximum scattering wavelengths of the five combined products are all located at 330 nm.The scattered intensity increments (△I) of the combined products are directly proportional to the concentrations of the antibiotics in a certain range.The methods exhibit high sensitivity, and the detection limits for the five penicillin antibiotics are between 4.61 and 5.62 ng·mL-1.The spectral characteristics of RRS and the optimum reaction conditions were investigated.The mechanism of reaction and the reasons for the enhancement of resonance light scattering were discussed.The effects of coexisting substances have been examined, and the results indicated that the method had a good selectivity.It can be applied to the determination of penicillin antibiotics

in capsule, tablet, human serum and urine samples. 【总页数】7页(295-301)

【关键词】resonance Rayleigh scattering, potassium ferricyanide, penicillin antibiotics

【作者】DUAN Hui;LIU Zhong-Fang;LIU Shao-Pu;KONG Ling

【作者单位】School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China;School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China;School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China;School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China 【正文语种】中文 【中图分类】O6 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-journal-chemistry_thesis/0201251284248.html 【相关文献】

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