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Proceedings Paper

Use of the fluorescence of rhodamine B for the pH sensing of a glycine solution
Author(s): Weiwei Zhang; Kaixing Shi; Jiulin Shi; Xingdao He
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Paper Abstract

The fluorescence of rhodamine B can be strongly affected by its environmental pH value. By directly introducing the dye into various glycine solution, the fluorescence was used to monitor the pH value in the range of 5.9 ~ 6.7. Two newly developed techniques for broadband analysis, the barycenter technique and the self-referenced intensity ratio technique, were employed to retrieve the pH sensing functions. While compared with traditional techniques, e.g. the peak shift monitoring, both the two new techniques presented finer precision. The obtained sensing functions may find their applications in the test of biochemical samples, body tissue fluid, water quality, etc.

Paper Details

Date Published: 19 October 2016
PDF: 6 pages
Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101553F (19 October 2016); doi: 10.1117/12.2247373
Show Author Affiliations
Weiwei Zhang, Nanchang Hangkong Univ. (China)
Kaixing Shi, Nanchang Hangkong Univ. (China)
Jiulin Shi, Nanchang Hangkong Univ. (China)
Xingdao He, Nanchang Hangkong Univ. (China)


Published in SPIE Proceedings Vol. 10155:
Optical Measurement Technology and Instrumentation
Sen Han; JiuBin Tan, Editor(s)

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