19 October 2016 Use of the fluorescence of rhodamine B for the pH sensing of a glycine solution
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Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101553F (2016) https://doi.org/10.1117/12.2247373
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
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.
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Weiwei Zhang, Weiwei Zhang, Kaixing Shi, Kaixing Shi, Jiulin Shi, Jiulin Shi, Xingdao He, Xingdao He, } "Use of the fluorescence of rhodamine B for the pH sensing of a glycine solution", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101553F (19 October 2016); doi: 10.1117/12.2247373; https://doi.org/10.1117/12.2247373

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