Sciact
  • EN
  • RU

Properties of Chromatographic Columns Prepared on the Basis of Poly(1-trimethylsilyl-1-propyne) Modified with Organic Bases Full article

Journal Journal of Chromatography A
ISSN: 0021-9673 , E-ISSN: 1873-3778
Output data Year: 2024, Number: 1723, Article number : 464914, Pages count : 10 DOI: 10.1016/j.chroma.2024.464914
Tags Poly(1-trimethylsilyl-1-propyne); Organic bases; Packed columns; Plot columns; Stationary phase modification
Authors Yakovleva Elena Y. 1,2 , Patrushev Yuri V. 1,2 , Shundrina Inna K. 3 , Glazneva Tatiana S. 1
Affiliations
1 Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia
2 Novosibirsk State University, Pirogova Str., 2, Novosibirsk 630090, Russia
3 N.N. Vorozhtsov Institute of Organic Chemistry, pr. Lavrentieva 9, Novosibirsk 630090, Russia

Funding (2)

1 Ministry of Science and Higher Education of the Russian Federation FWUR-2024-0035
2 Ministry of Science and Higher Education of the Russian Federation FWUR-2024-0032

Abstract: This article describes the effect of modification with organic bases such as uracil (U) and polyethyleneimine (PEI) on the adsorption and chromatographic properties of poly(1-trimethylsilyl-1-propyne) (PTMSP) used as a stationary phase (SP) in packed and capillary columns. It was shown that the sorbents prepared on the basis of diatomite Chromosorb P NAW support and successively modified with 9 wt.% PTMSP and 1 wt.% U (or PEI) (PC-U and PC-PEI samples, respectively), have a mesoporous structure. The IR spectrum shows the presence of carbonyl groups in the sorbent modified with uracil. The impregnation of the Chromosorb P NAW + (9/1) wt.% PTMSP sorbent with a polyethyleneimine solution leads to the appearance in the spectrum of bands characterizing Nsingle bondH stretching and bending vibrations, as well as a band at 1310 cm−1 which can be attributed to Csingle bondN bond vibrations. The chromatographic properties of the studied sorbents differ significantly from the properties of the initial PTMSP. Packed columns PC-U and PC-PEI, as well as capillary columns with a polyethyleneimine-modified PTMSP layer, allow one to selectively separate mixtures of polar and non-polar compounds and structural isomers of hydrocarbons. Methanol on these columns is eluted in the form of a symmetrical peak separately from propane, propylene and other associated hydrocarbon impurities in commercial (technical, target) n-butane.
Cite: Yakovleva E.Y. , Patrushev Y.V. , Shundrina I.K. , Glazneva T.S.
Properties of Chromatographic Columns Prepared on the Basis of Poly(1-trimethylsilyl-1-propyne) Modified with Organic Bases
Journal of Chromatography A. 2024. N1723. 464914 :1-10. DOI: 10.1016/j.chroma.2024.464914 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
Submitted: Feb 8, 2024
Accepted: Apr 15, 2024
Published online: Apr 16, 2024
Published print: May 24, 2024
Identifiers:
Web of science: WOS:001232070000001
Scopus: 2-s2.0-85190727363
Elibrary: 67017729
Chemical Abstracts: 2024:868029
PMID: 38640880
OpenAlex: W4394858521
Citing: Пока нет цитирований
Altmetrics: