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酚类产品组成的气相色谱测定方法 被引量:1
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作者 程亚平 李知良 《燃料与化工》 2010年第5期44-47,共4页
建立了酚类产品组成的气相色谱测定方法,使用4种类型的毛细管色谱柱对酚类产品进行分析,对测定条件进行优化,各组分的分离度均达到了1.3,准确度和精密度优于GB/T2601—1981和GB/T2604—1981及JIS标准,与ASTM标准接近。该方法适用于所有... 建立了酚类产品组成的气相色谱测定方法,使用4种类型的毛细管色谱柱对酚类产品进行分析,对测定条件进行优化,各组分的分离度均达到了1.3,准确度和精密度优于GB/T2601—1981和GB/T2604—1981及JIS标准,与ASTM标准接近。该方法适用于所有焦化酚类产品组成的分析。 展开更多
关键词 酚类产品 气相色谱 毛细管色谱柱
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Phenolic Antioxidants in Cypriot Wines as a Tool for Their Varietal Discrimination: Preliminary Results
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作者 Rebecca Kokkinofta Eleni Tzioni Naso Economidou Katerina Damianou Eleni Prokopiou Anna Krashia Myriam Frantzi Eleni Kakouri Popi Kanari 《Journal of Chemistry and Chemical Engineering》 2014年第8期810-818,共9页
A total of 56 wines from different vintages and wine-growing regions of Cyprus were used to analyze six biologically interesting phenolic antioxidants (gallic acid, catechin, vanillic acid, epicatechin, coumaric and ... A total of 56 wines from different vintages and wine-growing regions of Cyprus were used to analyze six biologically interesting phenolic antioxidants (gallic acid, catechin, vanillic acid, epicatechin, coumaric and feroulic acid) by high performance liquid chromatography. The study includes red and white Cypriot authentic wines from local and imported varieties that were produced under the same vinification conditions at a Model Winery. Results extracted after the chemometric analysis of the measured concentrations show a strong relationship of the phenolic antioxidative capacity with the variety of the wines and gallic acid followed by vanillic acid found in the highest concentrations of the other antioxidants studied. Comparing the concentrations found with bibliographic data for wines from other countries, it was found that, the concentration levels of vanillic and ferulic acid were significantly higher for Cypriot wines. 展开更多
关键词 WINE ANTIOXIDANTS phenolic compounds HPLC (high performance liquid chromatography) Cypriot wines chemometrics.
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