Larcher R, Nicolini G, Puecher Chr, Bertoldi D, Moser S, Favaro G
IASMA Research Center, Agrifood Quality Department, San Michele all'Adige (TN), Italy.
Anal Chim Acta. 2007 Jan 16;582(1):55-60. doi: 10.1016/j.aca.2006.08.056. Epub 2006 Sep 3.
A new high-performance liquid chromatography method using a coulometric array detector to simultaneously analyse 4-ethylphenol, 4-ethylguaiacol, 4-vinylphenol, and 4-vinylguaiacol in wine was established. This procedure offers important advantages as it does not require sample preparation, with the exception of filtration, and performs chromatographic separation in short time, making control of wine production processes easier. The method is linear up to concentrations of 2000 microg L(-1) and precise (R.S.D.<3%). Limits of detection are low (1-3 microg L(-1)) and suitable for analytical requirements in the oenological field. When compared to gas-chromatography-flame ionisation detection, the proposed method gives similar results with a shorter execution time.
建立了一种使用库仑阵列检测器的新型高效液相色谱法，用于同时分析葡萄酒中的4-乙基苯酚、4-乙基愈创木酚、4-乙烯基苯酚和4-乙烯基愈创木酚。该方法具有重要优势，除过滤外无需样品制备，且能在短时间内完成色谱分离，使葡萄酒生产过程的控制更加容易。该方法在浓度高达2000 μg L⁻¹时呈线性，精密度高（相对标准偏差<3%）。检测限低（1 - 3 μg L⁻¹），适用于酿酒领域的分析要求。与气相色谱 - 火焰离子化检测相比，该方法在更短的执行时间内给出了相似的结果。
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