4.6 Article

Optimization of a miniaturized solid-phase microextraction method followed by gas chromatography mass spectrometry for the determination of twenty four volatile and semivolatile compounds in honey from Galicia (NW Spain) and foreign countries

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SUSTAINABLE CHEMISTRY AND PHARMACY
卷 21, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.scp.2021.100451

关键词

Honey; Miniaturized solid phase microextraction; Experimental design; GC-MS

资金

  1. GO project [FEADER 2018/054B]
  2. Division of Analytical Chemistry of the European Chemical Society

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An analytical miniaturized methodology based on solid-phase-microextraction coupled with gas chromatography-mass spectrometry has been developed for the identification of compounds in honey samples. By optimizing experimental parameters, the method was successfully validated for its suitability in analyzing a broad range of honey samples.
An analytical miniaturized methodology based on solid-phase-microextraction (mini_SPME) followed by gas chromatography coupled to mass spectrometry (GC-MS) has been developed for the identification of volatile and semivolatile compounds in honey samples. The main influential experimental parameters, such as the type of fibre coating, extraction temperature, solvent addition, extraction mode, ionic strength, and sample dilution were optimized. A design of experiments (DOE) was conducted including twenty-four target compounds. The final extraction conditions comprised the use of 200 mg of honey mixed with 200 mu L of water (100%, w/v), employing a DVB/CAR/PDMS fibre in the headspace mode at 100 degrees C for 30 min. The mini_SPME-GC-MS method was successfully validated in terms of linearity, repeatability, reproducibility and accuracy. Finally, it was applied to a broad range of varieties of real honey samples from Galicia (NW Spain), as well as some foreign honeys, demonstrating suitability.

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