Cellulose acetate polymer film modified microstructured polymer optical fiber towards a nitrite optical probe |
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| Authors: | Dongdong Li Lili Wang |
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| Affiliation: | a State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Information Road 17, Xi'an, Shaanxi, 710119, China
b Graduate University of Chinese Academy of Science, Beijing 100039, China |
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| Abstract: | A novel microstructured polymer optical fiber (MPOF) probe for nitrites (NO2−) detection was made by forming rhodamine 6G (Rh 6G)-doped cellulose acetate (CA) on the side wall of array holes in a MPOF. It was found that the MPOF probe only have a response to nitrites in a certain concentration of sulfuric acid solution. The calibration graph of fluorescence intensity versus nitrites concentration was linear in the range of 2.0 × 10− 4 g/ml-5.0 × 10− 3 g/ml. The method possesses ease of chemical modification, low cost design, and potential for direct integration with existing instrumentation, and has been applied to the determination of nitrites in real samples with satisfactory results. |
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| Keywords: | Optical sensing Fluorescence Microstructured polymer optical fiber Nitrites |
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