Research output: Contribution to journal › Article › peer-review
Properties of chromatographic columns prepared on the basis of poly(1-trimethylsilyl-1-propyne) modified with organic bases. / Yakovleva, Elena Y.; Patrushev, Yuri V.; Shundrina, Inna K. et al.
In: Journal of Chromatography A, Vol. 1723, 464914, 05.2024.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Properties of chromatographic columns prepared on the basis of poly(1-trimethylsilyl-1-propyne) modified with organic bases
AU - Yakovleva, Elena Y.
AU - Patrushev, Yuri V.
AU - Shundrina, Inna K.
AU - Glazneva, Tatiana S.
N1 - 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 N[sbnd]H stretching and bending vibrations, as well as a band at 1310 cm−1 which can be attributed to C[sbnd]N 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.
PY - 2024/5
Y1 - 2024/5
N2 - 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 N[sbnd]H stretching and bending vibrations, as well as a band at 1310 cm−1 which can be attributed to C[sbnd]N 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.
AB - 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 N[sbnd]H stretching and bending vibrations, as well as a band at 1310 cm−1 which can be attributed to C[sbnd]N 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.
KW - Organic bases
KW - Packed columns
KW - Plot columns
KW - Poly(1-trimethylsilyl-1-propyne)
KW - Stationary phase modification
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85190727363&origin=inward&txGid=bf5a1fe91f4865163d223f3a98271559
UR - https://www.mendeley.com/catalogue/a938f5ef-52fc-35dc-831e-070bb59531b1/
U2 - 10.1016/j.chroma.2024.464914
DO - 10.1016/j.chroma.2024.464914
M3 - Article
C2 - 38640880
VL - 1723
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
M1 - 464914
ER -
ID: 60876044