Evanescent Fiber Sensor for Determining Water Content in Polar Organic Solvents

Yi Ping Wang; Fei Bing  Xiong; Wen Zhang Zhu

doi:10.4028/www.scientific.net/AMR.756-759.724

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 756-759Evanescent Fiber Sensor for Determining Water...

Evanescent Fiber Sensor for Determining Water Content in Polar Organic Solvents

Abstract:

The feasibility of sapphire fiber sensors based on evanescent absorption spectroscopy in the infrared range for determination of water content in polar organic solvents has been investigated. Evanescent absorption spectra of sapphire fiber sensors in glycerol, ethanol and glycol with different volume concentrations were recorded and analyzed, respectively. Evanescent absorbance around 2.7μm of fiber sensors in those organic solvents has been utilized to implement for in situ monitoring water concentration in organic solvents. The evanescent fiber sensors for monitoring water concentrations in those organic solvents are acceptably accurate, cost-effective and reliable. Overall results demonstrate that the sapphire fiber sensor based on evanescent absorption is a promising candidate for prediction of water content in polar organic solvents in on-line and remote situation.

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Periodical:

Advanced Materials Research (Volumes 756-759)

Pages:

724-727

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.756-759.724

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Online since:

September 2013

Authors:

Yi Ping Wang, Fei Bing Xiong, Wen Zhang Zhu

Keywords:

Evanescent Absorption, Fiber Sensor, Organic Solvents, Water Concentration

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