Solid phase microextraction of volatile oxidation compounds in oil-in-water emulsions
Solid phase microextraction of volatile oxidation compounds in oil-in-water emulsions
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DOI：
10.1016/j.foodchem.2004.07.030
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发表时间：
2005-09-01
期刊：
影响因子：
8.8
通讯作者：
Gordon, MH
中科院分区：
文献类型：
--
作者：
Beltran, G;Aguilera, MP;Gordon, MH
顶空固相微萃取（HS-SPME）已被用于分离在氧化过程中形成的水包油型乳状液的顶空挥发物。采用GC-FID进行定性和定量分析。测试了四种样品吸附温度（30、40、50和60 ℃）和10-25分钟范围内的吸附时间，以确定挥发物浓度达到平衡的条件。最佳条件是在50 C为20 min。该方法被施加到监测挥发性成分的变化过程中的O/W乳液的氧化。固相微萃取法是一种简便、灵敏、重现性好的分析水包油型乳状液中挥发性氧化产物的方法。(c)2004 Elsevier Ltd.保留所有权利。
Headspace solid phase microextraction (HS-SPME) has been used to isolate the headspace volatiles formed during oxidation of oil-in-water emulsions. Qualitative and quantitative analyses with an internal standard were performed by GC-FID. Four sample temperatures for adsorption (30, 40, 50 and 60 C) and adsorption times in the range 10-25 min were tested to determine the conditions for the volatile concentration to reach equilibrium. The optimum conditions were at 50 C for 20 min. The method was applied to monitor changes in volatile composition during oxidation of an o/w emulsion. SPME was a simple, reproducible and sensitive method for the analysis of volatile oxidation products in oil-in-water emulsions. (c) 2004 Elsevier Ltd. All rights reserved.