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A Fluorescence Quenching Method for the Determination of Chlorine in Water with 2,3,7-Trihydroxy-9-Dibromo-Hydroxy-Phenylfluorone and Cetyltrimethylammonium Bromide

 

作者: Gong Guoquan,   Wang Liufang,   Wang Fengqin,   Li Liqian,  

 

期刊: Analytical Letters  （Taylor Available online 1993）
卷期: Volume 26, issue 1  

页码: 147-151

 

ISSN:0003-2719

 

年代: 1993

 

DOI:10.1080/00032719308016802

 

出版商: Taylor & Francis Group

 

关键词: Chlorine, 2, 3, 7-trihydroxy-9-dibromohydroxyphenylfluorone;Fluorescence quenching mehod.

 

数据来源: Taylor

 

摘要:

A highly sensitive and selective fluorescence quenching method was developed to determine chlorine with 2,3,7-trihydroxy-9-dibromo-hydroxy-phenylfluorone as fluoregenic reagent. In the presence of CTMAB, a red compound was produced, its maximum excitation wavelength is 495nm, its emission wavelength is 520nm. The detection limit is 0.10μg/25ml. The linear calibration range is 0.10–3.0μg/25ml. This method may be used for the determination of chlorine in water.

 

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