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Optimization and application of headspace-solid-phase micro-extraction coupled with gas chromatography–mass spectrometry for the determination of volatile compounds in cherry wines

Authors :
Guangyong Zhu
Xuan Zhou
Zuobing Xiao
Dan Yu
Jiancai Zhu
Yunwei Niu
Source :
Journal of Chromatography B. :122-130
Publication Year :
2015
Publisher :
Elsevier BV, 2015.

Abstract

A simple, rapid and solvent-free multi-residue method has been developed and applied to confirm and quantify a series of volatile compounds in five cherry wines by gas chromatography coupled with mass spectrometry (GC–MS). Four parameters (e.g., coating material of fiber, temperature and time of extraction, and addition of sodium chloride in the solution) of headspace solid-phase micro-extraction (HS-SPME) were optimized, resulting in the best extraction condition including 50/30 μm DVB/CAR/PDMS fiber, 45 min and 50 °C of SPME, and 2 g of sodium chloride addition in the wine during the extraction. The SPME had LODs and LOQs ranging from 0.03 to 7.27 μg L−1 and 0.10 to 24.24 μg L−1 for analytic compounds, respectively. Repeatability and reproducibility values were all below 19.8%, with mean values of 12.7% and 10.5%, respectively. Regression coefficients (R2) of detective linearity of the standard curves was higher than 0.9852. Moreover, relative recoveries of analytical targets were achieved in a range of 60.7–125.6% with good relative standard deviation values (≤20.6%). In addition, a principal component analysis (PCA) was used to analyze the aroma profiles of the wines, which indicated that five samples were distinctly divided into two groups based on their different geographical origins and volatile compounds.

Details

ISSN :
15700232
Database :
OpenAIRE
Journal :
Journal of Chromatography B
Accession number :
edsair.doi.dedup.....74716a5489ac83788619f7fd47a19eb1
Full Text :
https://doi.org/10.1016/j.jchromb.2014.12.006