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63 Newest Publications about the topic headspace gas chromatography

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Selective determination of semi-volatile thiophene compounds in water by molecularly imprinted polymer thin films with direct headspace gas chromatography sulfur chemiluminescence detection

27-May-2018 | Hassan Y. Hijazi; Christina S. Bottaro, Analyst, 2018

Water-compatible molecularly imprinted polymer (MIP) thin films are coupled with headspace gas chromatography sulfur chemiluminescence detection (HS-GC-SCD) to create a new approach for the determination of trace concentrations of thiophene compounds in water samples. Thiophene compounds are ...

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Molecules, Vol. 23, Pages 627: Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

10-Mar-2018 | Finnegan, Christopher ; Ryan, David ; Enright, Anne-Marie ; Garcia-Cabellos, Guiomar, Molecules, 2018

Molecules, Vol. 23, Pages 627: Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry Molecules doi: 10.3390/molecules23030627 Authors: Christopher Finnegan David Ryan Anne-Marie Enright Guiomar ...

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Volatile-Compound Fingerprinting by Headspace-Gas-Chromatography Ion-Mobility Spectrometry (HS-GC-IMS) as a Benchtop Alternative to 1H NMR Profiling for Assessment of the Authenticity of Honey

10-Jan-2018 | Natalie Gerhardt; Markus Birkenmeier; Sebastian Schwolow; Sascha Rohn; Philipp Weller, Analytical Chemistry, 2018

This work describes a simple approach for the untargeted profiling of volatile compounds for the authentication of the botanical origins of honey based on resolution-optimized HS-GC-IMS combined with optimized chemometric techniques, namely PCA, LDA, and kNN. A direct comparison of the PCA–LDA ...

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Determination of 3‐chloro‐1,2‐propanediol in polyamideamine epichlorohydrin resin solution by reaction based headspace gas chromatography

08-Jan-2018 | Ning Yan, Xiao‐Fang Wan, Xin‐Sheng Chai, Run‐Quan Chen, Journal of Separation Science, 2018

Abstract We report on a headspace gas chromatographic method for determining the content of 3‐chloro‐1,2‐propanediol in polyamideamine epichlorohydrin resin solution. It was based on quantitatively converting 3‐chloro‐1,2‐propanediol to formaldehyde by periodate oxidation in a closed headspace ...

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Comprehensive headspace gas chromatographic analysis of denaturants in denatured ethanol

09-Aug-2017 | Niels Boxtel, Kris Wolfs, Marta Guillén Palacín, Ann Schepdael, Erwin Adams, Journal of Separation Science, 2017

To discourage consumption, ethanol is often denatured using both volatile (e.g. methyl ethyl ketone and isopropanol) and non‐volatile (e.g. denatonium benzoate) chemical substances. As a result, the analysis of denatured ethanol samples is usually performed by multiple techniques such as gas ...

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IJERPH, Vol. 14, Pages 527: A New Method for the Fast Analysis of Trihalomethanes in Tap and Recycled Waters Using Headspace Gas Chromatography with Micro-Electron Capture Detection

15-May-2017 | Alexandrou, Lydon D.; Meehan, Barry J.; Morrison, Paul D.; Jones, Oliver A. H., International Journal of Environmental Research and Public Health, 2017

Chemical disinfection of water supplies brings significant public health benefits by reducing microbial contamination. The process can however, result in the formation of toxic compounds through interactions between disinfectants and organic material in the source water. These new compounds are ...

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Volatile compounds in hilsa (Tenualosa ilisha, Hamilton) as detected by static headspace gas chromatography and mass spectrometry

13-Feb-2017 | Satabdi Ganguly, Arabinda Mahanty, Tandrima Mitra, Rohan Kumar Raman, Bimal Prasanna Mohanty, Journal of Food Processing and Preservation, 2017

Abstract Tenualosa ilisha (Hilsa) is a commercially important food fish in countries around the Bay of Bengal and enjoys high consumer preference for its unique flavor and culinary properties. Fish flavors, an important factor for consumer acceptance are largely characterized by the volatile ...

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Efficient Determination of Specific Surface Area of Shale Samples Using a Tracer-Based Headspace Gas Chromatographic Technique

21-Dec-2016 | Liang He; Teng-Fei Li; Xin-Sheng Chai; Hui Tian; Xian-Ming Xiao; Donald G. Barnes, Analytical Chemistry, 2016

This paper reports on a novel method for determining the specific surface area (SSA) of shale via headspace gas chromatography (HS-GC). The method is based on the water adsorption on the surface of shale sample after achieving phase equilibrium at an elevated temperature (i.e., heating at 125 °C ...

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Thermodynamic Study of a Complex System for Carbon Capture: Butyltriacetonediamine + Water + Carbon Dioxide

31-Oct-2016 | Dan Vasiliu; Amir Yazdani; Nichola McCann; Muhammad Irfan; Rolf Schneider; Jörn Rolker; Gerd Maurer; Erik von Harbou ..., Journal of Chemical & Engineering Data, 2016

Different thermodynamic properties of aqueous solutions of butyltriacetonediamine (BuTAD), unloaded and loaded with carbon dioxide, are studied experimentally. For unloaded mixtures of BuTAD and water, protonation equilibrium constants between 283 and 333 K and liquid–liquid equilibria between ...

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Trace‐level screening of dichlorophenols in processed dairy milk by headspace gas chromatography

20-Aug-2016 | Kaelyn Gras, Jim Luong, Ronda Gras, Robert Shellie, Journal of Separation Science, 2016

A headspace gas chromatographic approach based on flame ionization detection has been successfully developed for the determination of parts‐per‐billion levels of 2,4‐dichlorophenol and 2,6‐dichlorophenol in processed dairy milk. Under the right environmental conditions, these compounds are ...

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