Synthesis of Silica Gel with Surface Layer of Transition Metals 8-Oxyquinolinates for Gas Chromatography

2014 ◽  
Vol 1040 ◽  
pp. 405-409 ◽  
Author(s):  
Aleksandra I. Makarycheva ◽  
Yury G. Slizhov
Keyword(s):  
Gas Chromatography ◽  
Surface Layer ◽  
Transition Metals ◽  
Silica Gel ◽  
Morphological Structure ◽  
Analytical Separation

The modification of Silochrome C80 with copper(II), cobalt(II) and nickel(II) 8-oxyquinolinates complexes was carry out. The range of working temperatures, morphological structure, polarity and chromatographic properties of the obtained sorbents were investigated. New sorbents were used for analytical separation of ketone mixtures of normal and isomeric chain by gas chromatography.

Determination of dimethyl fumarate (DMFu) in silica gel pouches using gas chromatography coupled ion trap mass spectrometry

2011 ◽  
Vol 46 (4) ◽  
pp. 341-349 ◽  
Author(s):  
Patrizia Stefanelli ◽  
Danilo Attard Barbini ◽  
Silvana Girolimetti ◽  
Angela Santilio ◽  
Roberto Dommarco
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Silica Gel ◽  
Ion Trap ◽  
Dimethyl Fumarate ◽  
Ion Trap Mass Spectrometry

scholarly journals Cleanup Procedure for Monitoring Chlorinated Compounds in Animal Feed and Crops

1998 ◽  
Vol 81 (3) ◽  
pp. 513-518 ◽  
Author(s):  
Mona Syhre ◽  
Gudrun Hanschmann ◽  
Ralf Heber
Keyword(s):  
Gas Chromatography ◽  
Silica Gel ◽  
Carbon Material ◽  
Animal Feed ◽  
Gel Permeation Chromatography ◽  
Electron Capture Detection ◽  
Chlorinated Pesticides ◽  
Gel Permeation ◽  
Cleanup Procedure

abstract A powerful cleanup procedure for determination of chlorinated pesticides and poly chlorinated biphenyls (PCBs) in difficult agricultural matrixes like feeds or crops was developed to eliminate the interferences in chromatograms obtained by gas chromatography with electron capture detection. The adsorption material used was ENVI-Carb, a graphitized nonporous carbon material. This procedure proved to be more reliable than the established cleanup procedure, which uses gel permeation chromatography and silica gel cartridges. Because ENVI-Carb cleanup delivers clear, colorless eluates with no interferences, chlorinated pesticides and PCBs may be detected at levels as low as 0.0004 mg/kg for monitoring purposes. Accuracy was validated through a series of recovery experiments.

scholarly journals The Blossoming of Technology for the Analysis of Complex Aroma Bouquets—A Review on Flavour and Odorant Multidimensional and Comprehensive Gas Chromatography Applications

Molecules ◽  
2019 ◽  
Vol 24 (11) ◽  
pp. 2080 ◽  
Author(s):  
Michelle S.S. Amaral ◽  
Philip J. Marriott
Keyword(s):  
Gas Chromatography ◽  
Important Application ◽  
Scientific Study ◽  
Complex Matrices ◽  
Main Research ◽  
Separation Technology ◽  
Application Fields ◽  
Analytical Separation ◽  
Research Studies

Multidimensional approaches in gas chromatography have been established as potent tools to (almost) attain fully resolved analyses. Flavours and odours are important application fields for these techniques since they include complex matrices, and are of interest for both scientific study and to consumers. This article is a review of the main research studies in the above theme, discussing the achievements and challenges that demonstrate a maturing of analytical separation technology.

scholarly journals Fabrication of Gas Chromatography Glass Capillary Columns with Silica Gel Layer on the Inner Surface Utilizing Sol-Gel Phase Separation

2005 ◽  
Vol 113 (1321) ◽  
pp. 634-636 ◽  
Author(s):  
Ryoji TAKAHASHI ◽  
Satoshi SATO ◽  
Toshiaki SODESAWA ◽  
Yuta HAGA ◽  
Masanari ISHIZUKI ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Phase Separation ◽  
Silica Gel ◽  
Sol Gel ◽  
Capillary Columns ◽  
Glass Capillary ◽  
Gel Layer ◽  
Inner Surface ◽  
Glass Capillary Columns ◽  
Gel Phase

Multivariate curve resolution combined with gas chromatography to enhance analytical separation in complex samples: A review

2012 ◽  
Vol 731 ◽  
pp. 11-23 ◽  
Author(s):  
Leandro Wang Hantao ◽  
Helga Gabriela Aleme ◽  
Marcio Pozzobon Pedroso ◽  
Guilherme Post Sabin ◽  
Ronei Jesus Poppi ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Multivariate Curve Resolution ◽  
Complex Samples ◽  
Curve Resolution ◽  
Analytical Separation
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