论文部分内容阅读
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.
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. Limit of Detection and the Limit of Quantification values were determined as 0.03 (% v / v) and 0.11 (% v / v ). respectively.Both art similar 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.