期刊
FOOD ANALYTICAL METHODS
卷 11, 期 11, 页码 3089-3094出版社
SPRINGER
DOI: 10.1007/s12161-018-1277-z
关键词
Vacuum-assisted sorbent extraction; VASE; Volatile phenols; Beer
A novel method based on vacuum-assisted sorbent extraction (VASE) used with gas chromatography-mass spectrometry (GC-MS) for isolation of volatile phenols was described. The method is based on extraction of analytes into sorbent traps (sorbent pen) filled with Tenax in a vacuum systemvials with traps from which air was evaluated. The method was applied for extraction of volatile phenols from aqueous matrix and smoked beer was used as a food example. Methyl-, dimethyl-, and trimethylphenols, along with 4-ethylphenol, 4-methylguaiacol, 4-ethylguaiacol, 4-propylguaiacol, and eugenol, were used in method development. Optimal extraction parameters were elaborated. For the analysis of volatile phenols in beer matrix, the method was characterized with satisfactory linearity (r(2)0.99) in a range of 0.005-0.5mg/L. Limits of detection (LODs) for analyzed compounds ranged from 0.0006 to 0.018mg/L and repeatability for majority of compounds was <5% for a single trap extraction. The detected volatile phenols in beer samples ranged from 0.003 to 0.672mg/L.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据