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A Fluorimetric Method for the Determination of Atmospheric Sulphur Dioxide With 2′, 7′—Dichlorofluorescein*

 

作者: Gong Guoquan,   Xia He,   Wang Huaigong,  

 

期刊: Analytical Letters  （Taylor Available online 1995）
卷期: Volume 28, issue 5  

页码: 909-915

 

ISSN:0003-2719

 

年代: 1995

 

DOI:10.1080/00032719508001433

 

出版商: Taylor & Francis Group

 

关键词: Fluorimetric method;sulphur dioxide;2′, 7′—dichlorofluorescein;bromine

 

数据来源: Taylor

 

摘要:

A rapid, simple and sensitive fluorimetric method has been developed for the determination of atmospheric sulphur dioxide with dichlorofluorescein as fluorogenic reagent (λex= 505 nm, λem= 520 nm) at pH 4.0–6.0. A linear calibration curve was obtained in the range 0.01–0.40 μg SO2/25 ml. The detection limit is 0.01 μg SO2/25 ml. Nitrogen dioxide does not interfere with the method. The method was successfully applied to the determination of atmospheric sulphur dioxide.

 

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