食品科学 ›› 2012, Vol. 33 ›› Issue (24): 239-243.doi: 10.7506/spkx1002-6630-201224050

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定酱香型白酒中挥发性酚类物质

寻思颖1,董睿2,彭黔荣3,冯永渝1,杨敏2,*,孙棣1,耿平兰1   

  1. 1.国家酒类及饮料产品质量监督检验中心,贵州 贵阳 550004;2.贵州大学化学与化工学院,贵州 贵阳 550003;3.贵州中烟工业有限责任公司贵阳卷烟厂,贵州 贵阳 550003
  • 收稿日期:2011-10-27 修回日期:2012-11-15 出版日期:2012-12-25 发布日期:2012-12-12
  • 通讯作者: 杨敏 E-mail:ce.myang@gzu.edu.cn

Determination of Volatile Phenols in Maotai-Flavor Liquors by HPLC-FLD

XUN Si-ying1,DONG Rui2,PENG Qian-rong3,FENG Yong-yu1,YANG Min2,*,SUN Di1,GENG Ping-lan1   

  1. 1. National Centre of Quality Supervision and Detection for Wine and Beverages, Guiyang 550004, China;2. School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550003, China;3. Guiyang Cigarettes Factory, China Tobacco Guizhou Industrial Co. Ltd., Guiyang 550003, China
  • Received:2011-10-27 Revised:2012-11-15 Online:2012-12-25 Published:2012-12-12

摘要: 利用酚类物质的荧光特性和手性拆分剂β-环糊精拆分重叠峰,建立带荧光检测-高效液相色谱仪法测定酱香型白酒中10种挥发性酚类物质含量的方法,色谱条件如下:色谱柱,Synergi 4u Hydro-RP 80A (150mm×4.6mm,4μm);荧光检测器波长:Ex=270nm,Em=315nm;流动相A:冰醋酸-β-环糊精的水溶液(1:100,V/V);流动相B:冰醋酸-乙腈-β-环糊精的水溶液(1:40:60,V/V),梯度洗脱分析。该法对10种挥发性酚类化合物测定的回收率为83.8%~101.6%,相对标准偏差为0.9%~2.5%,检出限为0.0025~0.0506μg/mL。说明该方法准确度、灵敏度和重复性好。

关键词: 高效液相色谱, 挥发性酚, β-环糊精, 酱香型白酒

Abstract: A high-performance liquid chromatography with fluorescence detector (HPLC-FLD) method for the determination of volatile phenols in Maotai-flavor liquors was established. This method was based on the fluorescent nature of volatile phenols and the separation of overlapped peaks with β-cyclodextrin as a resolving agent. The chromatographic separation was achieved on Synergi 4u Hydro- RP 80A column (150 mm × 4.6 mm, 4 μm) using acetic acid-β-cyclodextrin aqueous solution of (1:100, V/V) as mobile phase A and acetic acid-acetonitrile-β-cyclodextrin aqueous solution (1:40:60, V/V) by gradient elution. The excitation and emission wavelengths were set as 270 nm and 315 nm, respectively. Average recoveries of 10 volatile phenols in liquors were 83.8%–101.6% with RSDs ranging from 0.9% to 2.5%. The limits of detection of this method were 0.0025–0.0506 μg/mL. These results indicated that this method was accurate, sensitive and repeatable.

Key words: HPLC, volatile phenols, β-cyclodextrin, Maotai-flavor liquors

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