Determination of semi-volatile additives in wines using SPME and GC–MS
| Autor: | Yenglik T. Nurzhanova, Gulyaim N. Sagandykova, Mereke Alimzhanova, Bulat Kenessov |
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| Rok vydání: | 2017 |
| Předmět: |
Wine
Chromatography Chemistry 010401 analytical chemistry Extraction (chemistry) 04 agricultural and veterinary sciences General Medicine Solid-phase microextraction Mass spectrometry Benzoates Propylene Glycol 040401 food science 01 natural sciences Gas Chromatography-Mass Spectrometry Sorbic Acid 0104 chemical sciences Analytical Chemistry Matrix (chemical analysis) 0404 agricultural biotechnology Standard addition Gas chromatography Gas chromatography–mass spectrometry Solid Phase Microextraction Food Science |
| Zdroj: | Food Chemistry. 220:162-167 |
| ISSN: | 0308-8146 |
| DOI: | 10.1016/j.foodchem.2016.09.164 |
| Popis: | Parameters of headspace solid-phase microextraction, such as fiber coating (85μm CAR/PDMS), extraction time (2min for white and 3min for red wines), temperature (85°C), pre-incubation time (15min) were optimized for identification and quantification of semi-volatile additives (propylene glycol, sorbic and benzoic acids) in wines. To overcome problems in their determination, an evaporation of the wine matrix was performed. Using the optimized method, screening of 25 wine samples was performed, and the presence of propylene glycol, sorbic and benzoic acids was found in 22, 20 and 6 samples, respectively. Analysis of different wines using a standard addition approach showed good linearity in concentration ranges 0-250, 0-125, and 0-250mg/L for propylene glycol, sorbic and benzoic acids, respectively. The proposed method can be recommended for quality control of wine and disclosing adulterated samples. |
| Databáze: | OpenAIRE |
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