Analysis of essential oils and fragrances with a new generation of highly inert gas chromatographic columns coated with ionic liquids

Characterization and Analysis of Volatile Fingerprint of 13 Different Commercial Essential Oils with GC-MS and Chemical Gas Sensors

“…S3 device used in the present work has been completely designed and constructed at SENSOR Laboratory (University of Brescia, Italy) in collaboration with NASYS S.r.l., a spin-off of the University of Brescia. It has been described in other works [39,[40][41][42][43][44][45]46]. Briefly, the tool comprises three parts: pneumatic components, that transfer VOCs from the head-space of samples to the sensing chamber; electronic boards, that manage the acquisition and transmission of the data from the device to the dedicated Web-App and allow the synchronization between S3 and the auto-sampler; sensing chamber, that can host from five to ten different MOX gas sensors and is thermostated and isolated in order to avoid any influence of the surrounding environment.…”

“…First of all, a Gas Cromatograph with Mass Spectometer (GC-MS) has been used in order to identify the compounds of the samples and to understand which were common and which distinctive of the specific sample. This technique is widely used for this purpose [41,42]. GC-MS has been coupled with Solid Phase Micro Extraction (SPME) technique.…”

The Influence of Ionic Liquids on the Effectiveness of Analytical Methods Used in the Monitoring of Human and Veterinary Pharmaceuticals in Biological and Environmental Samples—Trends and Perspectives

“…Particularly, it has an outstanding capability for resolving critical pairs of anilines and phenols with good peak shapes, and shows distinct advantages over the typical conventional stationary phases. IL columns find many uses in the analysis of flavors and fragrances [176,177], fatty acids [178][179][180][181][182] and petrochemicals [183,184]. González Peredes et al [185] evaluated different IL columns for the separation of chlorobenzenes and developed an analytical methodology based on the use of the IL stationary phase SLB-IL82 in GC with a microelectron capture detector for the determination of chlorobenzenes in soil samples.…”

Exploiting the versatility of vacuum‐assisted headspace solid‐phase microextraction in combination with the selectivity of ionic liquid‐based GC stationary phases to discriminate Boswellia spp. resins through their volatile and semivolatile fractions

“…Polar columns are therefore mandatory for the correct characterization of the resins. In this respect, the introduction of ionic liquids (ILs) for use as SPs has opened up new possibilities in the separation of critical pairs of compounds in natural matrices [13–18]. These SPs show peculiar selectivity and a comparable, or higher polarity than conventional polydimethylsiloxane‐ and polyethyleneglycol‐ based columns, and, at the same time, provide similar, or even higher maximum allowable operating temperatures and lower bleeding than most polyethyleneglycol ‐based SPs.…”