Optofluidic Raman sensor for simultaneous detection of the toxicity and quality of alcoholic beverages
Article first published online: 29 APR 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 44, Issue 6, pages 795–797, June 2013
How to Cite
Ashok, P. C., Praveen, B. B. and Dholakia, K. (2013), Optofluidic Raman sensor for simultaneous detection of the toxicity and quality of alcoholic beverages. J. Raman Spectrosc., 44: 795–797. doi: 10.1002/jrs.4301
- Issue published online: 5 JUN 2013
- Article first published online: 29 APR 2013
- Manuscript Accepted: 18 MAR 2013
- Manuscript Revised: 8 FEB 2013
- Manuscript Received: 17 SEP 2012
- Raman spectroscopy;
- microfluidic Raman spectroscopy
We report a chemometric prediction of the toxicity and quality of liquor using an optofluidic sensor based upon Waveguide Confined Raman Spectroscopy (WCRS). The WCRS sensor was used to record the Raman spectra, each obtained from a 20 µl sample of a given alcoholic beverage with and acquisition time of 20 s. This was used to predict, simultaneously, both the methanol concentration (toxicity) and ethanol concentration (quality), with an accuracy of 0.1% and 0.7% by volume, respectively, using a Partial Least Squares-based chemometric model. The model sensor is shown to be capable of identifying toxic liquors, based on the test performed on different types of liquor samples. Copyright © 2013 John Wiley & Sons, Ltd.