Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium.
J Sep Sci. 2020 May;43(9-10):1934-1941. doi: 10.1002/jssc.202000098. Epub 2020 Apr 3.
Headspace solid-phase microextraction is a solvent-free sample preparation technique that is based on the equilibrium among a three-phase system, i.e., sample-headspace-fiber. A compromise between sensitivity and extraction time is usually needed to optimize the sample throughput, especially when a large number of samples are analyzed, as usually the case in cross-samples studies. This work explores the capability of multiple-cumulative trapping solid-phase microextraction on the characterization of the aroma profiling of olive oils, exploiting the automation capability of a novel headspace autosampler. It was shown that multiple-cumulative solid-phase microextraction has the potential to improve the overall sensitivity and burst the level of information for cross-sample studies by using cumulative shorter extraction times.
顶空固相微萃取是一种无溶剂的样品制备技术，它基于三相系统（即样品-顶空-纤维）之间的平衡。通常需要在灵敏度和萃取时间之间进行折衷，以优化样品通量，特别是在大量样品需要分析的情况下，这种情况在交叉样品研究中很常见。本工作探索了多次累积捕集固相微萃取在橄榄油香气分析中的应用，利用新型顶空自动进样器的自动化功能。结果表明，多次累积固相微萃取具有通过使用累积较短的萃取时间来提高整体灵敏度和增加交叉样品研究信息量的潜力。
