TY - JOUR

T1 - Selection of the porous layer open tubular columns for separation of light components in comprehensive two-dimensional gas chromatography

AU - Patrushev, Yuri V.

AU - Sidelnikov, Vladimir N.

N1 - Copyright © 2018 Elsevier B.V. All rights reserved.

PY - 2018/12/7

Y1 - 2018/12/7

N2 - Up to the present, comprehensive two-dimensional gas chromatography was commonly performed using combinations of columns with stationary liquid phases. There are singular examples with a porous layer open tubular (PLOT) column used only in the second dimension. However, GC × GC systems with two PLOT columns are not reported in the literature. Our work describes the application of two PLOT columns in the GC × GC mode. In the first and second dimensions we used columns with the sorbents based on organic porous polymers with different selectivity: Rt-Q-BOND (nonpolar column consist of 100% divinylbenzene-styrene), Rt-S-BOND (intermediate polar column, which contain 4-vinylpyridine), Rt-U-BOND (polar column based on divinylbenzene - ethylene glycol dimethylacrylate copolymer), DVB-VIm (divinylbenzene-vinylimidazole copolymer), a column PTMSP with poly-(1-trimethylsilyl-1-propyne) sorbent, and a GASPRO column with porous silica as a stationary phase. The degree of orthogonality was calculated for five different combinations of columns, where a column with the porous polymer was used in the first dimension, and GASPRO column – in the second dimension. Orthogonality was estimated from the correlation coefficient of retention times in the first and second dimensions. Examples of the separation of C1-C5 hydrocarbons on a combination of PTMSP - GASPRO and Rt-Q-BOND - GASPRO columns are reported. It is shown that not only light hydrocarbons but also compounds belonging to different chemical classes can be separated with the use of PLOT columns.

AB - Up to the present, comprehensive two-dimensional gas chromatography was commonly performed using combinations of columns with stationary liquid phases. There are singular examples with a porous layer open tubular (PLOT) column used only in the second dimension. However, GC × GC systems with two PLOT columns are not reported in the literature. Our work describes the application of two PLOT columns in the GC × GC mode. In the first and second dimensions we used columns with the sorbents based on organic porous polymers with different selectivity: Rt-Q-BOND (nonpolar column consist of 100% divinylbenzene-styrene), Rt-S-BOND (intermediate polar column, which contain 4-vinylpyridine), Rt-U-BOND (polar column based on divinylbenzene - ethylene glycol dimethylacrylate copolymer), DVB-VIm (divinylbenzene-vinylimidazole copolymer), a column PTMSP with poly-(1-trimethylsilyl-1-propyne) sorbent, and a GASPRO column with porous silica as a stationary phase. The degree of orthogonality was calculated for five different combinations of columns, where a column with the porous polymer was used in the first dimension, and GASPRO column – in the second dimension. Orthogonality was estimated from the correlation coefficient of retention times in the first and second dimensions. Examples of the separation of C1-C5 hydrocarbons on a combination of PTMSP - GASPRO and Rt-Q-BOND - GASPRO columns are reported. It is shown that not only light hydrocarbons but also compounds belonging to different chemical classes can be separated with the use of PLOT columns.

KW - Comprehensive two-dimensional gas chromatography

KW - Light components separation

KW - Orthogonality

KW - PLOT columns

KW - Poly-(1-trimethylsilyl-1-propyne)

KW - Porous polymers

KW - HYDROCARBONS

KW - SORBENTS

KW - PORAPLOT-Q

KW - ORTHOGONALITY

KW - CAPILLARY COLUMNS

KW - Silicon Dioxide/chemistry

KW - Polymers/chemistry

KW - Chromatography, Gas/instrumentation

KW - Porosity

KW - Vinyl Compounds/chemistry

KW - Chemistry Techniques, Analytical/instrumentation

KW - Hydrocarbons/chemistry

UR - http://www.scopus.com/inward/record.url?scp=85055180274&partnerID=8YFLogxK

U2 - 10.1016/j.chroma.2018.10.015

DO - 10.1016/j.chroma.2018.10.015

M3 - Article

C2 - 30366693

AN - SCOPUS:85055180274

VL - 1579

SP - 83

EP - 88

JO - Journal of Chromatography A

JF - Journal of Chromatography A

SN - 0021-9673

ER -