Microsensing of plutonium with a glass optofluidic device

Timothée Allenet; Fabien Geoffray; Davide Bucci; Fabrice Canto; Philippe Moisy; Jean-Emmanuel Broquin

doi:10.1117/1.OE.58.6.060502

13 June 2019 Microsensing of plutonium with a glass optofluidic device

Timothée Allenet, Fabien Geoffray, Davide Bucci, Fabrice Canto, Philippe Moisy, Jean-Emmanuel Broquin

Author Affiliations +

Optical Engineering, Vol. 58, Issue 6, 060502 (June 2019). https://doi.org/10.1117/1.OE.58.6.060502

Abstract

The cointegration of optical and microfluidic functions on chemically resilient borosilicate glass to provide microfluidic chemical analyses is described. An evanescent wave sensing chip containing a fluid channel of 21 μL is implemented to carry out absorption spectroscopy measurements in the near-infrared range. Microchip packaging allows to perform remote analysis of harsh chemical solutions in confined environments. Detection of plutonium(VI) in aqueous 1 mol/L nitric acid solutions is achieved on solutions ranging from 0.05 to 0.13 mol/L. Results showcase the validity of the proposed approach by obtaining a sensor calibration curve and chip resilience to highly concentrated strong acids and radioactive elements. This proof-of-concept opens the path to optimized devices with a lower limit of detection.

Citation Download Citation

Timothée Allenet, Fabien Geoffray, Davide Bucci, Fabrice Canto, Philippe Moisy, and Jean-Emmanuel Broquin "Microsensing of plutonium with a glass optofluidic device," Optical Engineering 58(6), 060502 (13 June 2019). https://doi.org/10.1117/1.OE.58.6.060502

Received: 19 April 2019; Accepted: 29 May 2019; Published: 13 June 2019

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