1
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Miyagawa A, Kuno H, Nagatomo S, Nakatani K. Evolution of myoglobin diffusion mechanisms: exploring pore and surface diffusion in a single silica particle. ANAL SCI 2024:10.1007/s44211-024-00575-x. [PMID: 38652419 DOI: 10.1007/s44211-024-00575-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024]
Abstract
This study elucidates the mass transfer mechanism of myoglobin (Mb) within a single silica particle with a 50 nm pore size at various pH levels (6.0, 6.5, 6.8, and 7.0). Investigation of Mb distribution ratio (R) and distribution kinetics was conducted using absorption microspectroscopy. The highest R was observed at pH 6.8, near the isoelectric point of Mb, as the electrostatic repulsion between Mb molecules on the silica surface decreased. The time-course absorbance of Mb in the silica particle was rigorously analyzed based on a first-order reaction, yielding the intraparticle diffusion coefficient of Mb (Dp). Dp-(1 + R)-1 plots at different pH values were evaluated using the pore and surface diffusion model. Consequently, we found that at pH 6.0, Mb diffused in the silica particle exclusively through surface diffusion, whereas pore diffusion made a more substantial contribution at higher pH. Furthermore, we demonstrated that Mb diffusion was hindered by slow desorption, associated with the electrostatic charge of Mb. This comprehensive analysis provides insights into the diffusion mechanisms of Mb at acidic, neutral, and basic pH conditions.
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Affiliation(s)
- Akihisa Miyagawa
- Department of Chemistry, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Hatsuhi Kuno
- Department of Chemistry, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Shigenori Nagatomo
- Department of Chemistry, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan.
| | - Kiyoharu Nakatani
- Department of Chemistry, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan.
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2
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Anderson BG, Hancock TA, Kennedy RT. Preparation of high-efficiency HILIC capillary columns utilizing slurry packing at 2100 bar. J Chromatogr A 2024; 1722:464856. [PMID: 38579610 DOI: 10.1016/j.chroma.2024.464856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
Complex mixture analysis requires high-efficiency chromatography columns. Although reversed phase liquid chromatography (RPLC) is the dominant approach for such mixtures, hydrophilic interaction liquid chromatography (HILIC) is an important complement to RPLC by enabling the separation of polar compounds. Chromatography theory predicts that small particles and long columns will yield high efficiency; however, little work has been done to prepare HILIC columns longer than 25 cm packed with sub-2 μm particles. In this work, we tested the slurry packing of 75 cm long HILIC columns with 1.7 μm bridged-ethyl-hybrid amide HILIC particles at 2,100 bar (30,000 PSI). Acetonitrile, methanol, acetone, and water were tested as slurry solvents, with acetonitrile providing the best columns. Slurry concentrations of 50-200 mg/mL were assessed, and while 50-150 mg/mL provided comparable results, the 150 mg/mL columns provided the shortest packing times (9 min). Columns prepared using 150 mg/mL slurries in acetonitrile yielded a reduced minimum plate height (hmin) of 3.3 and an efficiency of 120,000 theoretical plates for acenaphthene, an unretained solute. Para-toluenesulfonic acid produced the lowest hmin of 1.9 and the highest efficiency of 210,000 theoretical plates. These results identify conditions for producing high-efficiency HILIC columns with potential applications to complex mixture analysis.
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Affiliation(s)
- Brady G Anderson
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Tate A Hancock
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Robert T Kennedy
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States; Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States.
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3
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Gritti F, Lawrence N, Field J. Preparation and investigation of two-component silica-modified hydrophobic layer for minimizing retention loss of reversed-phase chromatographic columns using fully aqueous mobile phases. J Chromatogr A 2024; 1719:464766. [PMID: 38428339 DOI: 10.1016/j.chroma.2024.464766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/03/2024]
Abstract
Chromatographers often employ fully aqueous mobile phases to retain highly polar compounds in reversed-phase liquid chromatography (RPLC). However, when the flow rate is interrupted, either accidentally or intentionally, a substantial loss in retention occurs due to the spontaneous dewetting of water from the hydrophobic surface of conventional RPLC-C18 particles. Previous studies have shown that maintaining a low C18 surface coverage (approximately 1.5 μmol/m2) can mitigate water dewetting by increasing chain disorder, facilitating the intercalation of water clusters between the C18-bonded chains, and keeping the mesopores wetted. In this research, we explore the potential and additional benefits of using two-component surface bonding materials (C8/C18 and PhenylHexyl (PhHx)/C18) at a constant and low total surface coverage of 1.51 ± 0.15 μmol/m2. We synthesized seven one- and two-component modified silica particles with a volume average particle size of 5.22 μm and an average mesopore size of 104 Å. The surface coverage was increased from 0 to 0.54, 1.00, and to 1.66 μmol2 for C8 chains and from 0 to 0.52, 0.70, and to 1.65 μmol2 for PhHx ligands. To prevent interactions between water and any unreacted silanols, all seven derivatized particles were heavily endcapped with trimethylsilane (TMS) reagent. The fraction of the surface area remaining in contact with water was determined by measuring the retention times of weakly (thiourea) and strongly (thymine) retained compounds at intervals of 1, 2, 4, 8, 16, 32, and 64 minutes following the cessation of flow. Two distinct column temperatures, 24°C and 60°C, were employed in the experiments. Retention losses were found to be minimized in the presence of a small quantity of C8 chains (less than 40% of the total surface coverage). Additionally, it is essential to consider substantial fractions of PhHx chains, as long as the presence of the PhHx ligand does not significantly impact retention and selectivity. Combining mixed RPLC bondings with a low total surface coverage of approximately 1.5 μmol/m2 emerges as a viable solution for further minimizing retention loss in standard C18-bonded RPLC columns, particularly within the surface coverage range of 2.5-3.0 μmol/m2.
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Affiliation(s)
- Fabrice Gritti
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA, 01757, USA.
| | - Nicole Lawrence
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA, 01757, USA
| | - Jessica Field
- Waters Corporation, Instrument/Core Research/Fundamental, 34 Maple Street, Milford, MA, 01757, USA
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4
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De Luca C, Compagnin G, Nosengo C, Mazzoccanti G, Gasparrini F, Cavazzini A, Catani M, Felletti S. Novel insights into the dependence of adsorption-desorption kinetics on particle geometry in chiral chromatography. Anal Bioanal Chem 2024; 416:1809-1820. [PMID: 38358532 PMCID: PMC10901921 DOI: 10.1007/s00216-024-05186-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
The existence of slow adsorption-desorption kinetics in chiral liquid chromatography is common knowledge. This may significantly contribute to worsening the efficiency and kinetic performance of a chromatographic run, especially when high flow rates are employed. Many attempts and protocols have been proposed to access this term, the so-called c ads , but they are based on different (theoretical) assumptions. As a consequence, no official method is available for the estimation of the adsorption-desorption kinetics term. In this work, a novel approach to access c ads is presented. This procedure combines experimental results obtained with kinetic and thermodynamic measurements. The investigations have been performed on two zwitterionic teicoplanin chiral stationary phases (CSPs) based on 1.9 μ m fully porous and 2.0 μ m superficially porous particles (FPPs and SPPs), using Z-D,L-Methionine as probe molecule. Kinetic studies have been performed through the combination of both stop-flow and dynamic measurements, while adsorption isotherms have been calculated through Inverse Method. This study has confirmed that, on both particle formats, analyte diffusion on the surface of the particle is negligible, meaning that adsorption is localized, and it has been demonstrated that adsorption-desorption kinetics is strongly dependent on particle geometry and, in particular, on the loading of chiral selector. These findings are fundamental not only to unravel novel aspects of the complex enantiorecognition mechanism but also to optimize the employment of CSPs for ultra-fast and preparative applications.
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Affiliation(s)
- Chiara De Luca
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy
| | - Greta Compagnin
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy
| | - Chiara Nosengo
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy
| | - Giulia Mazzoccanti
- Department of Drug Chemistry and Technology, "Sapienza" Università di Roma, P.le A. Moro 5, Rome, 00185, Italy
| | - Francesco Gasparrini
- Department of Drug Chemistry and Technology, "Sapienza" Università di Roma, P.le A. Moro 5, Rome, 00185, Italy
| | - Alberto Cavazzini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy
- Council for Agricultural Research and Economics, CREA, via della Navicella 2/4, Rome, 00184, Italy
| | - Martina Catani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy.
| | - Simona Felletti
- Department of Environmental and Prevention Sciences, University of Ferrara, via L. Borsari 46, Ferrara, 44121, Italy.
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5
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Retention and mass transfer properties of the series of unbonded, amide-bonded, and alkylsulfobetaine-bonded ethylene bridged hybrid hydrophilic interaction liquid chromatography columns. J Chromatogr A 2023; 1692:463828. [PMID: 36804802 DOI: 10.1016/j.chroma.2023.463828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/09/2023]
Abstract
This work investigates the link between the retentivity and the stationary phase to mobile phase mass transfer resistance of hydrophilic interaction liquid chromatography (HILIC) columns packed with the same base ethylene-bridged hybrid particles (BEH). The retention volumes, the plate heights, and the volume of the adsorbed water layer were measured for the ACQUITYTM UPLCTM BEHTM 130 Å HILIC Column (unbonded BEH), ACQUITY UPLC BEH 130 Å Amide Column (amide group attached), and AtlantisTM Premier BEH 95 Å Z-HILIC (zwitterionic group attached) Column. The method of Guo (toluene retention volumes in pure acetonitrile and in the HILIC eluent) was validated from the UNIFAC group-contribution method and applied to measure accurately the water layer volumes in these columns. A strong correlation was found between the retention volumes of most neutral polar analytes and the volume of the water layer adsorbed in the HILIC column. The fraction of the pore volume occupied by the water layer increases significantly from the BEH HILIC Column to the BEH Amide Column, and to the BEH Z-HILIC Column. This is explained by the water solvation of the attached ligands in the pore volume of the BEH Particles and to the smaller average mesopore size of the BEH Z-HILIC Particles. A second and strong correlation is also observed between the water content in the HILIC particle and the stationary phase to mobile phase mass transfer resistance of the HILIC columns at high mobile phase linear velocities. The measured intra-particle diffusivity normalized to the bulk diffusion coefficient decreased from 0.33 (BEH HILIC Column) to 0.10 (BEH Amide Column) and to only 0.03 (BEH Z-HILIC Column) for comparable retention of cytosine. These results are fully consistent with the higher viscosity of the internal eluent (higher water content) and higher internal obstruction for diffusion (smaller mesopores and internal porosity) in the BEH Z-HILIC Particles. Still, in gradient elution mode, the peak capacity was found to be 18% higher for the BEH Z-HILIC Column than that on the BEH Amide Column because the retention factors at elution were smaller when maintaining the same analysis time and starting eluent composition.
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6
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Felletti S, Catani M, Mazzoccanti G, De Luca C, Lievore G, Buratti A, Pasti L, Gasparrini F, Cavazzini A. Mass transfer kinetics on modern Whelk-O1 chiral stationary phases made on fully- and superficially-porous particles. J Chromatogr A 2020; 1637:461854. [PMID: 33387912 DOI: 10.1016/j.chroma.2020.461854] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 11/26/2022]
Abstract
In this work, a detailed study of mass transfer properties of trans-stilbene oxide (TSO) enantiomers on two Whelk-O1 chiral stationary phases (CSPs) has been performed. The CSPs were prepared by using both fully-porous silica particles of 2.5 μm particle diameter and superficially-porous ones of 2.6 μm particle diameter as base materials. By combining stop-flow and dynamic measurements in normal-phase conditions, the different contributions to mass transfer have been estimated. The study of intraparticle diffusion has revealed that the adsorption of both enantiomers is localized (i.e., characterized by absence of surface diffusion). The determination of thermodynamic binding constants (measured through adsorption isotherms) supports this finding.
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Affiliation(s)
- Simona Felletti
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Martina Catani
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Giulia Mazzoccanti
- Dept. of Drug Chemistry and Technology, Sapienza Universita di Roma, P.le A. Moro 5, 00185 Roma, Italy
| | - Chiara De Luca
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Giulio Lievore
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Alessandro Buratti
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Luisa Pasti
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Francesco Gasparrini
- Dept. of Drug Chemistry and Technology, Sapienza Universita di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - Alberto Cavazzini
- Dept. of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara, Italy.
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7
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Towards a high peak capacity of 130 using nanoflow hydrophilic interaction liquid chromatography. Anal Chim Acta 2019; 1062:147-155. [DOI: 10.1016/j.aca.2019.01.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 11/21/2022]
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8
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Methodologies to determine b-term coefficients revisited. J Chromatogr A 2018; 1532:124-135. [DOI: 10.1016/j.chroma.2017.11.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/16/2017] [Accepted: 11/30/2017] [Indexed: 11/19/2022]
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9
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Gong L. Analysis of oligonucleotides by ion-pairing hydrophilic interaction liquid chromatography/electrospray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:2125-2134. [PMID: 28972295 DOI: 10.1002/rcm.8004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 09/18/2017] [Accepted: 09/25/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE Hydrophilic interaction liquid chromatography/electrospray ionization mass spectrometry (HILIC-LC/ESI-MS) has been proved to be useful for the quality control of oligonucleotides. However, the lack of separation for some oligonucleotides using HILIC-LC/MS has proved problematic. This study aimed to improve the resolving ability of HILIC-LC/MS. METHODS The study was performed on a Waters UPLC® system coupled to a Waters LCT premier XE ESI-TOF mass spectrometer using a Zorbax® RRHD HILIC column (2.1 mm × 100 mm, 1.8 μm). Buffer systems contained triethylammonium acetate (TEAA) and acetonitrile. The effects of the concentration of TEAA and the type of organic modifiers on the separation of oligonucleotides were investigated. RESULTS The results showed that the optimum concentration of TEAA is 10 mM and acetonitrile is a better organic solvent than methanol. The addition of TEAA in the HILIC mobile phase improved the separation of N from N + A significantly compared to the HILIC method buffered with ammonium acetate. The IP-HILIC chromatography has demonstrated that the separation of oligonucleotides is sequence dependent. In addition, the IP-HILIC method produces a much simpler mass spectrum of an oligonucleotide with very efficient desalting. CONCLUSIONS The HILIC-LC/MS method with the addition of TEAA at a MS-compatible concentration has improved the separation of oligonucleotides. The IP-HILIC-LC/MS method also produces very simple mass spectra with high desalting efficiency.
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Affiliation(s)
- Lingzhi Gong
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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10
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McCalley DV. Understanding and manipulating the separation in hydrophilic interaction liquid chromatography. J Chromatogr A 2017; 1523:49-71. [DOI: 10.1016/j.chroma.2017.06.026] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/05/2017] [Accepted: 06/11/2017] [Indexed: 10/19/2022]
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11
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Song H, Desmet G, Cabooter D. Assessment of intra-particle diffusion in hydrophilic interaction liquid chromatography and reversed-phase liquid chromatography under conditions of identical packing structure. J Chromatogr A 2017; 1523:204-214. [DOI: 10.1016/j.chroma.2017.06.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 10/19/2022]
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12
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Pazourek J, Šmejkal K. Feasibility of Fraction Collection in HPLC Systems with Evaporative Light Scattering Detector: Analysis of Pectinatella magnifica. Molecules 2016; 21:molecules21111495. [PMID: 27834833 PMCID: PMC6274552 DOI: 10.3390/molecules21111495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/28/2016] [Accepted: 10/30/2016] [Indexed: 11/16/2022] Open
Abstract
The use of a liquid chromatography (LC) splitter inserted between an HPLC column and an evaporative light scattering detector (ELSD) is described. This paper aims to show the feasibility of using the splitter in an HPLC-ELSD system to fractionate a model mixture of analytes, namely salicin (2-(hydroxymethyl)-phenyl-β-d-glucopyranoside) and glucose. The retention factors and efficiency of the separation were studied under various temperatures and water contents in the mobile phase in order to clarify the mechanism of polyols separation on a diol column under the conditions of hydrophilic liquid chromatography (HILIC). Finally, the system was applied to a biological sample (a lyophilized colony gel of Pectinatella magnifica), where the presence of fructose and glucose was confirmed.
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Affiliation(s)
- Jiří Pazourek
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackého tr. 1946/1, Brno 61242, Czech Republic.
| | - Karel Šmejkal
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackého tr. 1946/1, Brno 61242, Czech Republic.
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13
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Song H, Vanderheyden Y, Adams E, Desmet G, Cabooter D. Extensive database of liquid phase diffusion coefficients of some frequently used test molecules in reversed-phase liquid chromatography and hydrophilic interaction liquid chromatography. J Chromatogr A 2016; 1455:102-112. [DOI: 10.1016/j.chroma.2016.05.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/06/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
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14
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Qiao L, Shi X, Xu G. Recent advances in development and characterization of stationary phases for hydrophilic interaction chromatography. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.03.021] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Song H, Desmet G, Cabooter D. Evaluation of the Kinetic Performance Differences between Hydrophilic-Interaction Liquid Chromatography and Reversed-Phase Liquid Chromatography under Conditions of Identical Packing Structure. Anal Chem 2015; 87:12331-9. [DOI: 10.1021/acs.analchem.5b03697] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huiying Song
- Department
for Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Gert Desmet
- Department
of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium
| | - Deirdre Cabooter
- Department
for Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, KU Leuven, Herestraat 49, Leuven, Belgium
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16
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Shu Y, Lang JC, Breitbach ZS, Qiu H, Smuts JP, Kiyono-Shimobe M, Yasuda M, Armstrong DW. Separation of therapeutic peptides with cyclofructan and glycopeptide based columns in hydrophilic interaction liquid chromatography. J Chromatogr A 2015; 1390:50-61. [PMID: 25773727 DOI: 10.1016/j.chroma.2015.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 02/05/2015] [Accepted: 02/07/2015] [Indexed: 10/23/2022]
Abstract
Three cyclofructan-based, two glycopeptide-based, and one zwitterionic column used in the HILIC mode were assessed within a graphical framework based on different functional characteristics contributing to selectivity. The characteristics of these six HILIC columns are put in the perspective of 33 columns evaluated previously. The isopropyl carbamate modified cyclofructan 6 (CF6) stationary phase, Larihc P, showed reduced component contributions for hydrophilicity and hydrogen bonding relative to the native cyclofructan 6 column (Frulic N). Both Frulic N and Larihc P exhibited cation exchange attributed primarily to deprotonation of residual unsubstituted silica with the greater exchange ascribed to the reduced loading of CF6 observed for Larihc P. The cyclofructan 6 column with a polymeric styrene divinylbenzene support (MCI GEL™ CRS100) showed distinct selectivities consistent with its decreased cation exchange attributable to its nonionic core. The Chirobiotic T, Chirobiotic V, and ZI-DPPS columns displayed hydrophilicity and ion exchange selectivities similar to other zwitterionic stationary phases. All of the more hydrophilic columns showed excellent separation for the four classes of therapeutic peptides investigated: microbial secondary metabolites used as immune suppressants, synthetic gonadotropin hormones, synthetic cyclic disulfide-linked hormone-regulating hormones, and non-ribosomally derived polycyclic antibiotics. Resolution provided by these columns and ZIC-HILIC is compared for each class of peptide. Frulic N is primarily suitable for use in the HILIC mode whereas Chirobiotic T, because of its increased efficiency and selectivity, can be useful in both HILIC and reverse phase modes. In some Chirobiotic T applications, addition of low levels of a strong additive (trifluoroacetic acid, formic acid, etc.) to the mobile phase can be beneficial. In these peptide analyses, a relative weakening of the often-dominant ionic interaction between analyte and residual charge on the stationary phase improved resolution and selectivity.
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Affiliation(s)
- Yang Shu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; College of Life and Health Sciences, Northeastern University, Shenyang 110189, China
| | - John C Lang
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA
| | - Zachary S Breitbach
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Haixiao Qiu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Jonathan P Smuts
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA
| | - Mayumi Kiyono-Shimobe
- Mitsubishi Chemical Corporation, 1-1-1, Marunouchi, Chiyoda-ku, Tokyo 100-8251, Japan
| | - Mari Yasuda
- Mitsubishi Chemical Corporation, 1-1-1, Marunouchi, Chiyoda-ku, Tokyo 100-8251, Japan
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, Arlington, TX 76019, USA.
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17
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Guo Y. Recent progress in the fundamental understanding of hydrophilic interaction chromatography (HILIC). Analyst 2015. [DOI: 10.1039/c5an00670h] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the exponential growth in the application of the HILIC technique, there has been a significant progress in understanding the fundamental aspects of hydrophilic interaction chromatography.
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Affiliation(s)
- Yong Guo
- School of Pharmacy
- Fairleigh Dickinson University
- Florham Park
- USA
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18
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Heaton JC, McCalley DV. Comparison of the kinetic performance and retentivity of sub-2μm core–shell, hybrid and conventional bare silica phases in hydrophilic interaction chromatography. J Chromatogr A 2014; 1371:106-16. [DOI: 10.1016/j.chroma.2014.10.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 09/01/2014] [Accepted: 10/07/2014] [Indexed: 10/24/2022]
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19
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20
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Mass transport of small retained molecules in polymer-based monolithic columns. J Chromatogr A 2014; 1362:49-61. [DOI: 10.1016/j.chroma.2014.07.065] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 11/21/2022]
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Dolzan MD, Spudeit DA, Breitbach ZS, Barber WE, Micke GA, Armstrong DW. Comparison of superficially porous and fully porous silica supports used for a cyclofructan 6 hydrophilic interaction liquid chromatographic stationary phase. J Chromatogr A 2014; 1365:124-30. [PMID: 25260342 DOI: 10.1016/j.chroma.2014.09.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/28/2014] [Accepted: 09/02/2014] [Indexed: 10/24/2022]
Abstract
A new HILIC stationary phase comprised of native cyclofructan-6 (CF6) bonded to superficially porous silica particles (2.7μm) was developed. Its performance was evaluated and compared to fully porous silica particles with 5μm (commercially available as FRULIC-N) and 3μm diameters. Faster and more efficient chromatography was achieved with the superficially porous particles (SPPs). The columns were also evaluated in the normal phase mode. The peak efficiency, analysis time, resolution, and overall separation capabilities in both HILIC and normal phase modes were compared. The analysis times using the superficially porous based column in HILIC mode were shorter and the theoretical plates/min were higher over the entire range of flow rates studied. The column containing the superficially porous particles demonstrated higher optimum flow rates than the fully porous particle packed columns. At higher flow rates, the advantages of the superficially porous particles was more pronounced in normal phase separations than in HILIC, clearly demonstrating the influence that the mode of chromatography has on band broadening. However, the minimum reduced plate heights (hmin) were typically lower in HILIC than in the normal phase mode. Overall, the superficially porous particle based CF6 column showed clear advantages over the fully porous particle columns, in terms of high throughput and efficient separations of polar compounds in the HILIC mode.
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Affiliation(s)
- Maressa D Dolzan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; Department of Chemistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Daniel A Spudeit
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; Department of Chemistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Zachary S Breitbach
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - William E Barber
- Agilent Technologies Inc., 2850 Centerville Road, Wilmington, DE 19808, USA
| | - Gustavo A Micke
- Department of Chemistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA; AZYP LLC, 700 Planetarium Place, Arlington, TX, 76019, USA.
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Simultaneous determination of bambuterol and its two major metabolites in human plasma by hydrophilic interaction ultra-performance liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:225-34. [DOI: 10.1016/j.jchromb.2014.07.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 07/13/2014] [Accepted: 07/15/2014] [Indexed: 11/23/2022]
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Gritti F, Bell DS, Guiochon G. Particle size distribution and column efficiency. An ongoing debate revived with 1.9μm Titan-C18 particles. J Chromatogr A 2014; 1355:179-92. [DOI: 10.1016/j.chroma.2014.06.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/06/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022]
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24
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Possible resolution gain in enantioseparations afforded by core–shell particle technology. J Chromatogr A 2014; 1348:87-96. [DOI: 10.1016/j.chroma.2014.04.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/08/2014] [Accepted: 04/14/2014] [Indexed: 11/21/2022]
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25
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Mass transfer mechanism in chiral reversed phase liquid chromatography. J Chromatogr A 2014; 1332:35-45. [DOI: 10.1016/j.chroma.2014.01.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/12/2014] [Accepted: 01/14/2014] [Indexed: 11/19/2022]
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26
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Heaton JC, Wang X, Barber WE, Buckenmaier SM, McCalley DV. Practical observations on the performance of bare silica in hydrophilic interaction compared with C18 reversed-phase liquid chromatography. J Chromatogr A 2014; 1328:7-15. [DOI: 10.1016/j.chroma.2013.12.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 10/25/2022]
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27
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Gritti F, Guiochon G. Accurate measurements of the true column efficiency and of the instrument band broadening contributions in the presence of a chromatographic column. J Chromatogr A 2014; 1327:49-56. [DOI: 10.1016/j.chroma.2013.12.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/01/2013] [Accepted: 12/02/2013] [Indexed: 10/25/2022]
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Gritti F, Guiochon G. Impact of the nature and composition of the mobile phase on the mass transfer mechanism in chiral reversed phase liquid chromatography. Application to the minimization of the solvent cost in chiral separations. J Chromatogr A 2014; 1327:57-65. [DOI: 10.1016/j.chroma.2013.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/03/2013] [Accepted: 12/04/2013] [Indexed: 10/25/2022]
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High-resolution magic angle spinning description of the interaction states and their kinetics among basic solutes and functionalized silica materials. J Chromatogr A 2013; 1321:48-55. [DOI: 10.1016/j.chroma.2013.10.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 10/11/2013] [Accepted: 10/15/2013] [Indexed: 11/21/2022]
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30
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Melnikov SM, Höltzel A, Seidel-Morgenstern A, Tallarek U. How Ternary Mobile Phases Allow Tuning of Analyte Retention in Hydrophilic Interaction Liquid Chromatography. Anal Chem 2013; 85:8850-6. [DOI: 10.1021/ac402123a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sergey M. Melnikov
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
- Max-Planck-Institut für Dynamik komplexer technischer Systeme, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Alexandra Höltzel
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Andreas Seidel-Morgenstern
- Max-Planck-Institut für Dynamik komplexer technischer Systeme, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Ulrich Tallarek
- Department
of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
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