Advanced GC-MS method for quality and safety control of alcoholic products.

Recently developed and validated simple and reliable quantitative method employing ethanol as an internal standard (IS) for GC-MS quantification of volatile compounds in alcoholic products was applied to 36 samples including commercially available world-famous brand spirits from 18 countries and homemade distillates. The GC-MS analyses were performed simultaneously by the suggested approach and official IS method that is prescribed in the legislation of EU and USA. The independent samples t-test was employed to evaluate the statistical difference between the results of these two methods.

The perspectives of ethanol usage as an internal standard for the quantification of volatile compounds in alcoholic products by GC-MS.

The potential use of ethanol as an internal standard (IS) for GC-MS analysis was studied. The paper describes the analysis of spirit drinks and other alcoholic products which consist of a mixture of water, ethanol, and volatile compounds. In the suggested method, ethanol was employed as an IS for the common procedure of volatile compounds quantification.

Single-Laboratory Validation of a Gas Chromatographic Method of Direct Determination of Volatile Compounds in Spirit Drinks: Need for an Improved Interlaboratory Study.

The quality and safety control of an alcoholic drink is mainly the establishment of its chemical content, particularly the quantity of volatile compounds. A single-laboratory validation of a gas chromatographic method of direct determination of volatile compounds in spirit drinks was conducted. The discussed method applies ethanol, the major volatile component of an alcoholic beverage, as an internal standard.

Direct determination of volatile compounds in spirit drinks by gas chromatography.

A way of direct determination of volatile compounds in spirit drinks by gas chromatography is proposed by using ethanol as internal standard in gas chromatographic analysis of volatile compounds in spirit drinks for routine tests. This method provides determination of volatile compound concentrations in spirit drinks expressed directly in milligrams per liter of absolute alcohol without measuring the alcohol content of the analyzed sample. Theoretical background of the method shows the opportunity to use it in any tested laboratories all over the world and to ascertain in its efficiency and simplicity.