Research on Rapid Detection of Vitamin C with an Optic Sensor

Abstract:

Based on the spectral absorption/reflection principles, a home-made optic sensor which included substrate, filtration membrane, reaction film and absorbent pad has been proposed and established to detect vitamin C rapidly. In the experiment, ferric ion was reduced to ferrous ion by vitamin C in samples, the reaction film color turned from yellow to orange-red upon the binding reaction of ferrous ion to phenanthroline. Results demonstrated that vitamin C concentrations were proportional to L values of the L a b color system. A good linearity was presented in the range of 0.25-2500 μg/mL. The correlation coefficient(r) was 0.980 and the testing time was about 2 min at room temperature.

• Periodical: Advanced Materials Research (Volumes 295-297)
• Pages: 2599-2602
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.295-297.2599
• Online since: July 2011
• Authors: Bao Shan He, Xue Qin Li, Chun Yan Zuo, Dan Wang, Jin Shui Wang
• Keywords: Optic Sensor, Phenanthroline, Rapid Detection, Vitamin C

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