Optofluidic Raman sensor for simultaneous detection of the toxicity and quality of alcoholic beverages

Praveen C. Ashok, Bavishna B. Praveen, Kishan Dholakia

Research output: Contribution to journalArticle

7 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)795-797
Number of pages3
JournalJournal of Raman Spectroscopy
Issue number6
Publication statusPublished - 2013 Jun 1


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Spectroscopy

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