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A static headspace gas chromatography - mass spectrometry (HS–GC/MS) method was developed and optimized with the aim to be applied in the analysis of lavender essential oil.

In order to optimize the procedure, the effects of the water sample and headspace volume were studied. The experiment was performed using 60 ml vials and the volume of water was increased from 20 to 40 ml (headspace volume from 40 to 20 ml).A water sample (40 ml spiked at a level of 10 μg/l of THMs and 1.4-DCB (i.s.) 20 μg/l) was analyzed in duplicate with the 85-CAR/PDMS fiber.

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gas chromatography; headspace; sulfur chemiluminescence; sulfur dioxide “truly” free SO 2; wine analysis; Sulfur dioxide (SO 2) is the oldest and arguably one of the most important additives used in winemaking.When present in sufficient concentration, SO 2 has five major effects in wine/musts: (1) SO 2 is a strong antimicrobial agent and provides a protection against a wide array of

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A new hyper-fast gas chromatography method with less than 90 s runtime including the column cool down was developed for the analysis of four gases and 16 residual solvents, combining a CO 2 cryofocusing with a flow-field thermal gradient gas chromatograph (FF-TG-GC) and ToF-MS. The extremely low analysis time can be achieved by combining the new FF-TG-GC and a very short Rxi-624 Sil MS

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Gas chromatography mass spectrometry (GC/MS) has long been used in industry to identify and quantify unknown components in compounds down to ultra-trace levels. GCMS is ideal for impurity analysis and as a QC method. GCMS provides trace-level molecular characterization of many sample types and is a powerful analytical tool for trace and ultra

Headspace gas chromatography connected to an FID and/or an MS detector can be applied to obtain better precision and accuracy for the quantitative analysis of volatile organic compounds (VOCs) in bio-oils including light aldehydes and ketones, ethers, esters, alcohols, carboxylic acids and aromatic compounds [32,49].

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