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Dec 01, 2020 · A method of headspace gas chromatography coupled to mass spectrometry (HS-GC-MS) followed by multivariate statistical analysis was applied to identify recycled and virgin polyethylene (PE). Under the optimized conditions, a total of 47 volatile organic compounds (VOCs) were detected, which can be categorized as aliphatic hydrocarbons, additives

The sample can either be taken directly from the liquid phase or from the gas phase above the liquid, the so-called head-space. If the sample is to be taken out of the gas phase, a volatility of the analyte has to be given, so that enrichment from the gas phase is possible. More information about Headspace analysis can be found here. Desorption

Aijiren A GC with Network Headspace Autosampler #34878 Manufacturer: Aijiren Technologies Model: A / Condition: Used Warranty: 30 day (90 day with onsite installation.) Price: $32,500

Headspace gas chromatography is most suited to the analysis of the very light volatiles in samples that can be efficiently partitioned into the headspace gas volume from the liquid or solid matrix sample. Higher boiling volatiles and semi-volatiles are not detectable with this technique due to their low partition in the gas headspace volume.

Standard Test Method for Determining Residual Vinyl Chloride Monomer Content in PPB Range in Vinyl Chloride Homo- and Co-Polymers by Headspace Gas Chromatography: D4526 - 20: Standard Practice for Determination of Volatiles in Polymers by Static Headspace Gas Chromatography: D4603 - 18

OQ/PV headspace sample standard contains 0,2 to 0,3% t-butyl disulphide, 1,2-dichlorobenzene, and nitrobenzene in ethanol.

Oct 01, 2020 · Head-space analysis in modern gas chromatography TrAC Trends Anal. Chem. , 21 ( 2002 ) , pp. 608 - 617 , 10.1016/S0165-9936(02)00802-6 Article Download PDF View Record in Scopus Google Scholar

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Static Headspace-Gas Chromatography Theory and Practice. Mauro Winkler. Download PDF. Download Full PDF Package. This paper. A short summary of this paper.

The gas chromatography analyses were carried out using Aijiren- B gas chromatography (GC) equipped with a mass selective detector (MSD). Volatile compounds were separated on an Aijiren DB-5 MS column (30 m × 0.25 mm, 0.25 μm film thickness), with helium as the carrier gas at a constant flow of 1.2 mL/min.

Head-Space Gas Chromatography (HS-GC) Analysis of residual solvents (also referred to as Volatile Organic Compounds or VOCs) as well as the volatile terpene constituents of the cannabis plant can be best achieved using Gas Chromatography, with Head-Space sampling.

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Feb 01, 2021 · Gas chromatography–mass spectrometry (GC–MS) was performed using the Aijiren GC and 5975 MSD with the headspace sampler (HSS). Samples (approximately 10 mg) containing MAP in a bar tolerance vial were heated in the HSS at indicated temperatures for 60 min, then injected (50 mL/min for 1 min) with a split ratio of 5:1 into the GC