Methods gas chromatography, capillary electrophoresis, chromatography-mass spectrometry in analytical control of alcoholic beverages

2021 ◽  
pp. 63-64
Author(s):  
Наталия Викторовна Шелехова ◽  
Тамара Михайловна Шелехова ◽  
Любовь Ивановна Скворцова ◽  
Наталья Валериевна Полтавская
Keyword(s):  
Experimental Data ◽  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Capillary Electrophoresis ◽  
Alcoholic Beverages ◽  
Analytical Control ◽  
Biotechnological Processes ◽  
Express Methods ◽  
Kinetics Of ◽  
Composition Of Products

Разработаны, внедрены в практику аналитического контроля и применены в научных исследованиях инструментальные экспрессные методики определения химического состава продуктов, полупродуктов и отходов спиртового и ликероводочного производства. Получены новые экспериментальные данные, и выявлены закономерности кинетики биотехнологических процессов. Developed, implemented in the practice of analytical control and applied in scientific research instrumental express methods for determining the chemical composition of products, intermediates and waste of alcohol and distillery production. New experimental data are obtained and the regularities of the kinetics of biotechnological processes are revealed.

Capillary Column Gas Chromatographic Determination of Ethyl Carbamate in Alcoholic Beverages with Confirmation by Gas Chromatography/Mass Spectrometry

1987 ◽  
Vol 70 (4) ◽  
pp. 749-751 ◽  
Author(s):  
Henry B S Conacher ◽  
Denis B Page ◽  
Benjamin P Y Lau ◽  
James F Lawrence ◽  
Ruth Bailey ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Capillary Column ◽  
Methylene Chloride ◽  
Ethyl Carbamate ◽  
Mass Spectrometric ◽  
Mass Spectrometric Detection ◽  
Alcoholic Beverages ◽  
Gas Chromatography Mass Spectrometry ◽  
Acetate Solution

Abstract A method is described for determining ethyl carbamate at low \i%l kg levels in several types of alcoholic beverages by capillary column gas chromatography with Hall electrolytic conductivity detection and confirmation by mass spectrometry. Samples are diluted to obtain a uniform concentration of ethanol (ca 10%) then saturated with NaCl and extracted with methylene chloride. Extracts are evaporated to a small volume and injected in ethyl acetate solution for chromatographic analysis. The method was evaluated by 5 laboratories, 4 employing the Hall detector and one using mass spectrometric detection. Overall between-laboratory mean percent recoveries were: wine, 85.3 ± 21.0% coefficient of variation (CV) (spiking level 20- 45 μg/kg); sherry, 83.8 ± 16.1% CV (spiking level, 81-142 μg/kg);whiskey, 79.5 ± 13.9% CV (spiking level 127-190 Mg/kg); and brandy, 85.0 ± 12.5% CV (spiking level 297-446 μg/kg). Mass spectrometric results agreed well with the Hall results for all commodities. Detection limits were about 5 μg/kg for the Hall detector and about 0.5 μg/kg for mass spectrometric detection.

scholarly journals Comparison of Methods for Extraction of Ethyl Carbamate from Alcoholic Beverages in Gas Chromatography/Mass Spectrometry Analysis

2006 ◽  
Vol 89 (4) ◽  
pp. 1048-1051 ◽  
Author(s):  
Armen Mirzoian ◽  
Md. Abdul Mabud
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Internal Standard ◽  
Ethyl Carbamate ◽  
Alcoholic Beverages ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Official Method ◽  
Chromatography Mass Spectrometry ◽  
Limit Of Quantitation

Abstract A procedure to analyze ethyl carbamate (EC) by gas chromatography/mass spectrometry was optimized and validated. Deuterated EC (d5-EC) was added to the samples as an internal standard followed by extraction with polystyrene crosslinked polystyrene cartridges using minimal volumes of ethyl acetate. The EC response was measured in selective ion monitoring (SIM) mode and found to be linear in the range between the limit of quantitation (10 μg/L) and 1000 μg/L. EC recoveries varied from 92 to 112%, with the average value of 100 ± 8%. The procedure compared well (r2 = 0.9970) with the existing AOAC Official Method with the added benefits of minimal solvent usage and reduced matrix interferences.

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