Articles with "retention indices" as a keyword



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Characterization of stationary phases based on monosubstituted benzene retention indices using correspondence factor analysis and linear solvation energy relationships in RPLC

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Published in 2018 at "Journal of the Iranian Chemical Society"

DOI: 10.1007/s13738-018-1418-8

Abstract: In reversed-phase liquid chromatography (RPLC), the comparison of experimental results obtained from different columns is a complex problem. A correspondence factor analysis (CFA) and a linear solvation energy relationship (LSER) were applied on retention data… read more here.

Keywords: correspondence factor; factor analysis; retention indices; solvation energy ... See more keywords
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The differentiation of 2,5-dimethoxy-N-(N-methoxybenzyl)phenethylamine (NBOMe) isomers using GC retention indices and multivariate analysis of ion abundances in electron ionization mass spectra

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Published in 2019 at "Forensic Chemistry"

DOI: 10.1016/j.forc.2019.100160

Abstract: Abstract Synthetic phenethylamine derivatives known as 2,5-dimethoxy-N-(N-methoxybenzyl)phenethylamines (NBOMes) are a common class of novel psychoactive substances (NPS) that are causing many accidental deaths across the United States. Many derivatives are now banned at the federal… read more here.

Keywords: retention; ion; 25c nbome; retention indices ... See more keywords
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Facile Approach for Calculation of Second Dimensional Retention Indices in Comprehensive Two Dimensional Gas Chromatography with Single Injection.

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Published in 2019 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.8b05717

Abstract: In the present work, a novel and simple approach to generate isovolatility curves for alkane series was established, which serves to calculate the second dimension (2D) retention indices (2 I) for peaks in comprehensive two-dimensional… read more here.

Keywords: comprehensive two; two dimensional; retention indices; approach ... See more keywords
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Atom-Type-Based AI Topological Indices for Artificial Neural Network Modeling of Retention Indices of Monomethylalkanes.

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Published in 2019 at "Journal of chromatographic science"

DOI: 10.1093/chromsci/bmy081

Abstract: In this work, a combination of Xu and atom-type-based AI topological indices (TIs) were employed for quantitative structure-retention relationship (QSRR) study of monomethylalkanes (MMAs). A total of 196 temperature-programmed gas chromatographic retention indices corresponding to… read more here.

Keywords: topological indices; based topological; type based; atom type ... See more keywords
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Homologous Increments of Gas Chromatographic Retention Indices as Characteristic of Organic Compounds Polarity

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Published in 2019 at "Russian Journal of General Chemistry"

DOI: 10.1134/s1070363219030010

Abstract: Properties of homologous increments of gas chromatographic retention indices have been examined, iRI = RI − 100int(M/14), where M is molecular weight and RI is retention index. Comparing to the characteristics of other organic substances… read more here.

Keywords: homologous increments; retention; increments gas; retention indices ... See more keywords
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Prediction of Retention Indices and Response Factors of Oxygenates for GC-FID by Multilinear Regression

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Published in 2022 at "Data"

DOI: 10.3390/data7090133

Abstract: The replacement of fossil carbon sources with green bio-oils promotes the importance of several hundred oxygenated hydrocarbons, which substantially increases the analytical effort in catalysis research. A multilinear regression is performed to correlate retention indices… read more here.

Keywords: retention indices; multilinear regression; response factors;