| KMnO4-乙二醛化学发光体系测定5-磺基水杨酸的流动注射分析 |
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| 引用本文： | 王宪生,樊雪梅,王书民,陈凤英,刘萍.KMnO4-乙二醛化学发光体系测定5-磺基水杨酸的流动注射分析[J].分析试验室,2012(8):121-123. |
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| 作者姓名： | 王宪生 樊雪梅 王书民 陈凤英 刘萍 |
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| 作者单位： | 商洛学院化学与化学工程系 |
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| 基金项目： | 商洛学院项目(11SKY110)资助 |
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| 摘 要： | 酸性介质下,KMnO4可以氧化5-磺基水杨酸产生化学发光,乙二醛对该体系有增敏作用。结合流动注射技术,建立了测定5-磺基水杨酸的流动注射化学发光方法。方法线性范围为2.0×10-8～2.0×10-5mol/L,检出限为2.0×10-9mol/L,对2.0×10-6 mol/L的5-磺基水杨酸平行测定11次,相对标准偏差为1.9%。该法可用于强力霉素废水中5-磺基水杨酸的测定。
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| 关 键 词： | 流动注射化学发光 KMnO4 5-磺基水杨酸 乙二醛 流动注射分析 |
Determination of ferulic acid by potassium permanganate-glyoxal chemiluminescence system |
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| WANG Xian-shen,FAN Xue-mei,WANG Shu-min,CHEN Feng-ying and LIU Ping.Determination of ferulic acid by potassium permanganate-glyoxal chemiluminescence system[J].Chinese Journal of Analysis Laboratory,2012(8):121-123. |
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| Authors: | WANG Xian-shen FAN Xue-mei WANG Shu-min CHEN Feng-ying and LIU Ping |
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| Institution: | (Chemistry and Chemical Engineering Department of Shangluo College,Shangluo 726000) |
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| Abstract: | A new flow injection chemiluminescence method was established for the determination of 5-sulfosalicylic acid,it was based on that 5-sulfosalicylic acid could react with potassium permanganate in the acidic medium and produce chemiluminescence,which was enhanced by glyoxal.The linear range for the determination of 5-sulfosalicylic acid was 2.0×10-8 to 2.0×10-5 mol/L with a detection limit of 2.0×10-9 mol/L,and the relative standard deviation was 1.9% for 2.0×10-6 mol/L 5-sulfosalicylic acid solution in 11 repeated measurements.This method was found to be simple,fast and sensitive,and it was successfully applied to the determination of 5-sulfosalicylic acid in the waste water of doxycycline. |
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| Keywords: | Fow injection Chemiluminescence Potassium permanganate 5-sulfosalicylic acid Glyoxal |
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