Microwave-assisted deuterium exchange: The convenient preparation of isotopically labelled analogues for stable isotope dilution analysis of volatile wine phenols
作者:Anna M. Crump、Mark A. Sefton、Kerry L. Wilkinson
DOI:10.1016/j.foodchem.2014.04.051
日期:2014.11
This study reports the convenient, low cost, one-step synthesis of labelled analogues of six volatile phenols, guaiacol, 4-methylguaiacol, 4-ethylguaiacol, 4-ethylphenol, eugenol and vanillin, using microwave-assisted deuterium exchange, for use as internal standards for stable isotope dilution analysis. The current method improves on previous strategies in that it enables incorporation of deuterium
这项研究报告了微波辅助氘交换,方便,低成本,一步合成六种挥发性酚,愈创木酚,4-甲基愈创木酚,4-乙基愈创木酚,4-乙基苯酚,丁子香酚和香兰素的标记类似物,用作内部稳定同位素稀释分析的标准。当前的方法对先前的策略进行了改进,因为它使氘原子能够结合到芳环上,从而确保了质谱碎裂过程中同位素标记的保留。当用作SIDA的标准品时,这些标记的挥发性酚将提高定量食品和饮料分析的准确性和可重复性。