Selectivity of stationary phases in reversed-phase liquid chromatography based on the dispersion interactions

Turowski, Maciej; Morimoto, Takashi; Kimata, Kazuhiro; Monde, Hiroshi; Ikegami, Tohru; Hosoya, Ken; Tanaka, Nobuo

doi:10.1016/s0021-9673(00)01193-6

Cited by 53 publications

(32 citation statements)

References 22 publications

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“…2, was reversed, although their Log P values were 3.44 and 3.15, respectively. 13 The solubility parameter δ value 17 of chlorobenzene, xylene, acetonitrile and methanol was 9.6, 8.8, 11.8 and 12.9, respectively. Further, the dispersion solubility parameter δd value 17 of each solvent was 9.2, 8.8, 6.5 and 6.2, respectively.…”

Section: Retention Of Halogenated Aromatics On the Dbp-resin And Odsmentioning

confidence: 98%

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Retention Behavior of Halogenated Benzenes on a Stationary Phase Having a 2,4-Dibromophenoxy Group as the Halogen Recognition Functional Group

et al. 2015

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A stationary phase with a dipole interaction was synthesized by immobilizing the 2,4-dibromophenoxy (DBP) group onto a hydrophilic base resin. The chromatographic properties for halogenated benzenes were evaluated on the DBP-resin by reversed phase mode. The separation efficiency of the DBP-resin for p-xylene and 1,4-dihalogenated benzenes was better than that of the column packed with octadecylsilane (ODS). The results suggested that the retention of the solutes on the DBP-resin depends on the Debye interaction in addition to with the dispersion force caused by the DBP group.

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Section: Retention Of Halogenated Aromatics On the Dbp-resin And Odsmentioning

confidence: 98%

“…Tanaka and coworkers [13][14][15] developed several silica stationary phases immobilized with halogenated aromatic rings to examine the dispersibility of heavy atoms. These columns were used to separate fullerene isomers, halogenated compounds and deuterium compounds.…”

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confidence: 99%

Retention Behavior of Halogenated Benzenes on a Stationary Phase Having a 2,4-Dibromophenoxy Group as the Halogen Recognition Functional Group

et al. 2015

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“…Determination of the silanol activity of RP is a more difficult topic [42,43] in RP HPLC. The hydrogen bonding capacity in RPLC can be evaluated as the relative retention factors between a base and a neutral or a slightly acidic compound: caffeine and phenol, caffeine and o-terphenyl (Tanaka [3,40]); N,N-diethyl-m-toluamide and anthracene (Walters [4]); phenol and dimethylphthalate (Euerby and Petersson [30]); naphthalene and nitronaphthalene (Verzele and Dewaele [28]). …”

Section: Hydrogen Bonding Capacitymentioning

confidence: 99%

“…Many approaches [2 -6] have been investigated for the stationary phase characterization. These include systematic analysis of the retention behavior of a certain group of solutes [2,3,6], various spectrophotometric measurements of the stationary phase materials [7 -9], and theoretical calculations on the bonded phase structure [10,11].…”

Section: Introductionmentioning

confidence: 99%

Comparison of C18 silica bonded phases selectivity in micellar liquid chromatography

Kulikov

Galat

2009

J of Separation Science

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Original PaperComparison of C18 silica bonded phases selectivity in micellar liquid chromatographyThe paper describes a new test designed in micellar LC (MLC) to compare the commercial C18 stationary phase properties. This test provides the total hydrophobicity, hydrophilicity, steric selectivity, hydrogen bonding, and ion-exchange capacity properties calculation of the ODS stationary phases. Both the test compounds and chromatographic separation conditions choice for column characterization in MLC are detailed. The chromatographic performance of several stationary phases that are used in MLC was evaluated with specific chromatographic test comprising nine test compounds, possessing different physico-chemical properties, which were injected on different supports with two micellar mobile phases: one at pH 7.0 (0.075 mol/L SDS and 1.5% v/v 1-pentanol), and other at pH 2.7 (0.075 mol/L SDS and 1.5% v/v 1-pentanol adjusted to pH by TFA). Fundamental column chromatographic properties were obtained under these conditions and were treated by hierarchical cluster analysis. From the results of cluster analysis, two closely related groups of columns are distinguished, and it was shown that the chosen column characteristic parameters allow characterizing both sorbent and micellar chromatographic system properties. Eleven columns were analyzed by this test, which allows a comparison of columns with the aim of the selection of suitable and analogous column for the analysis with MLC.

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“…Therefore, an achievement of the direct separation of oil-based samples without any complicated pretreatments is preferred. Instead of typical hydrophobic packing materials, some unique materials, which were modified with specific moieties including halogenated phenyl or PAH-based groups onto the surface of silica spheres, had been developed and showed the selective separations based on the dispersion interaction and/or π−π interaction, as reported by Tanaka et al [16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

C<sub>60</sub>-Fullerene Bonded Silica Monolithic Capillary for Specific Separations of Aromatic Compounds

et al. 2015

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A simple preparation method for C 60 -fullerene bonded silica monolithic capillary by thermal coupling with a specific agent is reported. A silica monolithic capillary was modified with aminopropyl silane by a typical modification method, and then a thermal coupling agent, perfluorophenyl azide (PFPA) was covalently reacted with the amino groups. After C 60 -fullerene was covered over the PFPA-monolith at high density, thermal reaction was carried out at 170 C for 5 h, resulting C 60 -fullerene bonded silica monolith. We qualitatively confirmed all the modification process by elemental analysis and FT-IR, which showed the accomplishment of the all the reactions. According to liquid chromatographic evaluations, C 60 -fullerene bonded silica monolithic capillary provided the specific separation of polycyclic aromatic hydrocarbons (PAHs) by an effective π−π interaction based on the bonded C 60 -fullerene. Even if we used non-polar solvent, n-hexane, as a mobile phase, the effective base-line separation of PAHs was achieved. Additionally, the capillary allowed the separation of aromatic couples, including benzene/anisole, dibenzosuberone/dibenzosuberenone, and chrysene/triphenylene, which have slightly structural differences, depending on the density of π electrons in these compounds.

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Selectivity of stationary phases in reversed-phase liquid chromatography based on the dispersion interactions

Cited by 53 publications

References 22 publications

Retention Behavior of Halogenated Benzenes on a Stationary Phase Having a 2,4-Dibromophenoxy Group as the Halogen Recognition Functional Group

Retention Behavior of Halogenated Benzenes on a Stationary Phase Having a 2,4-Dibromophenoxy Group as the Halogen Recognition Functional Group

Comparison of C18 silica bonded phases selectivity in micellar liquid chromatography

C<sub>60</sub>-Fullerene Bonded Silica Monolithic Capillary for Specific Separations of Aromatic Compounds

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