Static Headspace Sampling and Solid-Phase Microextraction for Assessment of Edible Oils Stability
Static Headspace Sampling and Solid-Phase Microextraction for Assessment of Edible Oils Stability
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DOI：
10.1365/s10337-010-1516-y
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发表时间：
2010-06-01
期刊：
影响因子：
1.7
通讯作者：
Wardencki, Waldemar
中科院分区：
文献类型：
--
作者：
Gromadzka, Justyna;Wardencki, Waldemar
采用静态顶空取样法和顶空固相微萃取法测定了食用油氧化标志物低分子质量醛。优化了两种方法的富集和测定条件。建立了标准混合物的LODs、loq和可重复性。两种取样方法均应用于菜籽油和葵花籽油样品的分析。对于挥发性氧化产物的分析，固相微萃取优于顶空取样。固相微萃取可以在更低的温度下进行，比顶空取样具有更低的LOD值和更好的重复性。
Static headspace sampling and headspace solid-phase microextraction have been applied for the determination of the low molecular mass aldehydes-markers of edible oil oxidation. Preconcentration and determination conditions for the two procedures were optimized. LODs LOQs and repeatability of a standard mixture were established for all investigated compounds. Both methods of sampling were applied to the analysis of samples of rapeseed and sunflower oils. It appears that solid-phase microextraction is better than headspace sampling for the analysis of volatile oxidation products. Solid-phase microextraction can be conducted at a much lower temperature and has lower LOD values and better repeatability than headspace sampling.