Journal
ANALYTICAL CHEMISTRY
Volume 90, Issue 4, Pages 2548-2554Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.7b03833
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Funding
- U.S. Department of Energy, Office of Nuclear Energy, through the Nuclear Technologies RD Program
- U.S. Department of Energy, Office of Science, through a Small Business Innovation Research (SBIR) grant
- U.S. Department of Energy [DE-AC05-76RL01830]
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Microfluidic devices are a growing field with significant potential for applications to small scale processing of solutions. Much like large scale processing, fast, reliable, and cost-effective means of monitoring streams during processing are needed. Here we apply a novel micro-Raman probe to the online monitoring of streams within a microfluidic device. For either macro- or microscale process monitoring via spectroscopic response, interfering or confounded bands can obfuscate results. By utilizing chemometric analysis, a form of multivariate analysis, species can be accurately quantified in solution despite the presence of overlapping or confounding spectroscopic bands. This is demonstrated on solutions of HNO3 and NaNO3 within microflow and microfluidic devices.
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