Using Raman Spectroscopy for Determination Methanol Quantity in Illegal Alcoholic Beverages

doi:10.3964/j.issn.1000-0593(2017)09-2979-05

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Abstract Illegal production of alcoholic beverages is a common problem in most countries. The consumption of these counterfeit alcoholic products in Turkey has increasingly been one of the major health concerns. In this study, a comparison between GC-MS and Raman spectroscopy techniques was made to determine the amount of methanol in BogmaRaki which is a counterfeit alcoholic beverage produced and consumed in Hatay region. Different ratios of methanol/ethanol concentrations were prepared to obtain a calibration curve. This curve was used to measure the amount of methanol in the actual product samples using both GC-MS and Raman spectroscopy techniques. Results obtained from both techniques were compared using Paired sample t-tests. The Limit of Detection and the Limit of Quantification values were determined as 0.03 (%v/v) and 0.11 (%v/v), respectively. Both techniques demonstrated a similar sensitivity in the determination of methanol concentration in these counterfeit products (p>0.05). Raman Spectroscopy, however, has an advantage of being easy to use, inexpensive, rapid and non-destructive analytical technique with little or no sample preparation.

Key words：Ethanol; Methanol; Raman Spectroscopy; Alcohol; BogmaRaki

Received: 2016-07-26 Accepted: 2016-11-12

ZTFLH:

O657.3

Corresponding Authors: Güneş AÇIKGÖZ E-mail: gunesani@hotmail.com

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2017)09-2979-05 OR https://www.gpxygpfx.com/EN/Y2017/V37/I09/2979

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