PMID- 35526482 OWN - NLM STAT- MEDLINE DCOM- 20220609 LR - 20220609 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 246 DP - 2022 Aug 15 TI - Evaluation of the variation in relative response factors of GC-MS analysis with the internal standard methods: Application for the alcoholic products quality control. PG - 123518 LID - S0039-9140(22)00314-9 [pii] LID - 10.1016/j.talanta.2022.123518 [doi] AB - This paper focuses on the evaluation of variation of relative response factors (RRFs) obtained by two internal standard (IS) methods that are used to control the quality of alcoholic products. A standard IS method using 1-pentanol was compared with an "Ethanol as IS" method. The variation of RRF values for both methods was determined using standard solutions based on 20, 40 and 96% ethanol-water matrices. For this purpose, solutions of the ten most abundant volatile compounds were analysed at four different concentrations (250, 500, 1000 and 5000 mg L(-1) absolute alcohol, AA) within these matrices. Each solution was measured four times by gas chromatography-mass spectrometry (GC-MS) in single ion monitoring (SIM) mode under repeatability conditions. Our results showed that for the 40% and 96% matrices, the ethanol and standard IS methods showed similar relative standard deviations (RSDs) variation of no more than 2% within the 250-1000 mg L(-1) AA volatile compounds concentration range. For the 20% matrix as well as for the 250-5000 mg L(-1) AA concentration range the resulting variation in calibration factors reaches 10% for both methods. As for the whole range of 20-96% alcohol by volume (ABV) and 250-5000 mg L(-1) AA volatile concentration range, the resultant RRFs for the standard IS method (8% RSD) were more stable than those for the ethanol IS method (almost 40% RSD). Nonlinearity of the signal-to-amount dependence was also assessed with respect to the injection and detection processes. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Korban, Anton AU - Korban A AD - Faculty of Science, Department of Analytical Chemistry, Charles University, Hlavova 2030/8, 128 40, Prague 2, Czech Republic; Chemistry Faculty, Department of Analytical Chemistry, Belarusian State University, Leningradskaya 14, 220050, Minsk, Belarus; Institute for Nuclear Problems of Belarusian State University, 220006, Bobruyskaya Str., 11, Minsk, Belarus. Electronic address: karbonat7@gmail.com. FAU - Cabala, Radomir AU - Cabala R AD - Faculty of Science, Department of Analytical Chemistry, Charles University, Hlavova 2030/8, 128 40, Prague 2, Czech Republic. Electronic address: cabala@natur.cuni.cz. FAU - Egorov, Vladimir AU - Egorov V AD - Chemistry Faculty, Department of Analytical Chemistry, Belarusian State University, Leningradskaya 14, 220050, Minsk, Belarus. Electronic address: egorvv@bsu.by. FAU - Bosakova, Zuzana AU - Bosakova Z AD - Faculty of Science, Department of Analytical Chemistry, Charles University, Hlavova 2030/8, 128 40, Prague 2, Czech Republic. Electronic address: zuzana.bosakova@natur.cuni.cz. FAU - Charapitsa, Siarhei AU - Charapitsa S AD - Institute for Nuclear Problems of Belarusian State University, 220006, Bobruyskaya Str., 11, Minsk, Belarus. Electronic address: svcharapitsa@tut.by. LA - eng PT - Journal Article DEP - 20220430 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 059QF0KO0R (Water) RN - 3K9958V90M (Ethanol) SB - IM MH - *Ethanol MH - Gas Chromatography-Mass Spectrometry/methods MH - Quality Control MH - *Water OTO - NOTNLM OT - Alcoholic products OT - Calibration OT - Ethanol as IS OT - GC-MS OT - Internal standard method OT - Quality control OT - Relative response factors EDAT- 2022/05/09 06:00 MHDA- 2022/06/10 06:00 CRDT- 2022/05/08 18:16 PHST- 2021/12/03 00:00 [received] PHST- 2022/04/26 00:00 [revised] PHST- 2022/04/28 00:00 [accepted] PHST- 2022/05/09 06:00 [pubmed] PHST- 2022/06/10 06:00 [medline] PHST- 2022/05/08 18:16 [entrez] AID - S0039-9140(22)00314-9 [pii] AID - 10.1016/j.talanta.2022.123518 [doi] PST - ppublish SO - Talanta. 2022 Aug 15;246:123518. doi: 10.1016/j.talanta.2022.123518. Epub 2022 Apr 30.