Perspectives on using ethanol as an internal standard for the quantification of volatile compounds in alcoholic products by headspace SPME-GC/FID without sample preparation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10472931" target="_blank" >RIV/00216208:11310/23:10472931 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=gQIwKouH71" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=gQIwKouH71</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00706-023-03108-w" target="_blank" >10.1007/s00706-023-03108-w</a>
Alternative languages
Result language
angličtina
Original language name
Perspectives on using ethanol as an internal standard for the quantification of volatile compounds in alcoholic products by headspace SPME-GC/FID without sample preparation
Original language description
For the first time, the beneficial "Ethanol as Internal Standard (IS)" method developed for the analysis of alcoholic products was tested in headspace mode of solid-phase microextraction gas chromatography with flame ionization detector (SPMEGC/FID) and compared with the traditional IS method. The extraction and separation conditions were optimized for the analysis of 10 volatile congeners prescribed in European legislation: acetaldehyde, methyl acetate, ethyl acetate, methanol, butan-2-ol, propan-1-ol, 2-methylpropan-1-ol (isobutanol), butan-1-ol, 1,1-diethoxyethane (acetal), and 3-methylbutan-1-ol (isoamylol). To evaluate the accuracy of the compared methods, three real alcoholic product samples with ethanol content of 20%, 40%, and 80% v/v were spiked with gravimetrically prepared standard solutions to calculate recoveries. The obtained data indicates that the suggested method can be employed as a robust and accurate tool for SPME analysis of alcoholic products with low ethanol content, such as wines. It was also observed that an increase in ethanol content in the matrix affects the accuracy of the "Ethanol as IS" method, potentially due to non-linearity of analyte extraction. However, in the case of wine sample, the "Ethanol as IS" method showed significantly better results compared to the traditional approach. The precision of the suggested method, evaluated using relative standard deviations (RSD) of obtained concentrations was found to be comparable to that of the traditional method.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monatshefte für Chemie - Chemical Monthly
ISSN
0026-9247
e-ISSN
1434-4475
Volume of the periodical
154
Issue of the periodical within the volume
9
Country of publishing house
AT - AUSTRIA
Number of pages
5
Pages from-to
987-991
UT code for WoS article
001040835900001
EID of the result in the Scopus database
2-s2.0-85166299678