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Bocian S, Dembek M, Kalisz O. Exploring the green frontier: Subcritical water chromatography for sustainable analytical practices. J Sep Sci 2024; 47:e2300873. [PMID: 38801758 DOI: 10.1002/jssc.202300873] [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: 11/24/2023] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 05/29/2024]
Abstract
Water in the subcritical state is characterized by properties significantly different from water under standard conditions. These include low viscosity, low surface tension, and a much lower dielectric constant, increasing the solubility of nonpolar substances. For this reason, it can provide an alternative solvent and be used in chromatographic techniques-subcritical water chromatography (SBWC). SBWC appears to be one of the greenest analytical techniques until we unravel chromatography with pure water at room temperature. The versatility of SBWC is explored through its applications in the separation and analysis of a wide range of compounds, including pharmaceuticals, natural products, etc. The use of subcritical water as a mobile phase requires suitable stable stationary phases and special apparatus. Still, it makes it possible to conduct analyses without using organic solvents. When using this technique, it is important to remember that it suits the analysis of thermally stable substances. The following work is a critical review of developments in SBWC.
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Affiliation(s)
- Szymon Bocian
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Torun, Poland
| | - Mikołaj Dembek
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Torun, Poland
| | - Oktawia Kalisz
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Torun, Poland
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2
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Stationary Phases for Green Liquid Chromatography. MATERIALS 2022; 15:ma15020419. [PMID: 35057141 PMCID: PMC8778826 DOI: 10.3390/ma15020419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/14/2021] [Accepted: 12/30/2021] [Indexed: 01/27/2023]
Abstract
Industrial research, including pharmaceutical research, is increasingly using liquid chromatography techniques. This involves the production of large quantities of hazardous and toxic organic waste. Therefore, it is essential at this point to focus interest on solutions proposed by so-called “green chemistry”. One such solution is the search for new methods or the use of new materials that will reduce waste. One of the most promising ideas is to perform chromatographic separation using pure water, without organic solvents, as a mobile phase. Such an approach requires novel stationary phases or specific chromatographic conditions, such as an elevated separation temperature. The following review paper aims to gather information on stationary phases used for separation under purely aqueous conditions at various temperatures.
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Al-Khateeb LA, Al-zahrani MA, El-Maghrabey M, Dahas FA, El-Shaheny R, El Hamd MA. Extra-thermodynamic study of the retention of anti-inflammatory 2-arylpropionic acid derivatives on a heat-resistive stationary phase: Application of HTLC approach for pharmaceutical and biological analysis. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Lateefa A. Al-Khateeb. An Eco-Friendly RP-HPLC Method for the Separation and Trace Determination of Selected Food Colorant Residues in Foodstuffs Utilizing Superheated Water. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821070029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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6
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Tanase M, Soare A, David V, Moldoveanu SC. Sources of Nonlinear van't Hoff Temperature Dependence in High-Performance Liquid Chromatography. ACS OMEGA 2019; 4:19808-19817. [PMID: 31788613 PMCID: PMC6882149 DOI: 10.1021/acsomega.9b02689] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/05/2019] [Indexed: 05/22/2023]
Abstract
In HPLC, the nonlinear behavior of the retention factor k' with temperature (dependence of ln k' on 1/T) can be attributed to the multiple interactions of a unique analyte in the separation process and/or to the existence in solution of multiple forms of the analyte (also leading to different free enthalpies of interaction). In this study, several examples of nonlinear retention-temperature dependence are evaluated for both reversed-phase (RP) and hydrophilic interaction chromatography (HILIC) separations. The potential explanation for nonlinear retention-temperature behavior is evaluated for each example, some caused by multiple interactions in the separation system of a unique analyte and others by multiple forms of the analyte. In cases where the analyte does not have more forms and the separation is based predominantly on one type of interaction (e.g., hydrophobic interaction in RP-HPLC), the dependence is linear, as expected. By studying the changes in the chemical structure of a compound as a function of pH it is possible to decide, in many cases, if a unique form or multiple forms of a compound are present in the solution. The use of this information allows us to determine when the lack of linearity (when present) is caused by multiple interactions in the separation system (for one form of the compound) and when more forms are causing the lack of linearity. The approximation with a quadratic form for the nonlinear dependence has been verified in most cases to be good, and only minor improvements were obtained when using higher polynomial dependencies.
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Affiliation(s)
- Maria Tanase
- Faculty of Chemistry,
Department of Analytical Chemistry, University
of Bucharest, Bucharest 050663, Romania
| | - Andreia Soare
- Faculty of Chemistry,
Department of Analytical Chemistry, University
of Bucharest, Bucharest 050663, Romania
| | - Victor David
- Faculty of Chemistry,
Department of Analytical Chemistry, University
of Bucharest, Bucharest 050663, Romania
| | - Serban C. Moldoveanu
- R.
J. Reynolds Tobacco Co., Winston-Salem, North Carolina 27101, United States
- E-mail: . Phone: (336) 741-7948
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Peng SH, Yue XY, Wang YL, Wei Q, Cui SP, Nie ZR, Li QY. C18-Free Organic–Inorganic Hybrid Silica Particles Derived from Sole Silsesquioxane for Reversed-Phase HPLC. Chromatographia 2017. [DOI: 10.1007/s10337-017-3428-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Flieger J, Trębacz H, Pizoń M, Kowalska A, Szczęsna A, Plech T. High-performance liquid chromatography thermodynamic study of new potential antiepileptic compounds on a cholesterol column using isocratic elution with methanol/water and acetonitrile/water eluent systems. J Sep Sci 2017; 40:4176-4190. [DOI: 10.1002/jssc.201700748] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/25/2017] [Accepted: 08/25/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Jolanta Flieger
- Department of Analytical Chemistry; Medical University of Lublin; Lublin Poland
| | - Hanna Trębacz
- Chair and Department of Biophysics; Medical University of Lublin; Lublin Poland
| | - Magdalena Pizoń
- Department of Analytical Chemistry; Medical University of Lublin; Lublin Poland
| | - Anna Kowalska
- Department of Analytical Chemistry; Medical University of Lublin; Lublin Poland
| | - Agnieszka Szczęsna
- Chair and Department of Biophysics; Medical University of Lublin; Lublin Poland
| | - Tomasz Plech
- Department of Pharmacology; Medical University of Lublin; Lublin Poland
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Comparative studies of peak intensities and chromatographic separation of proteolytic digests, PTMs, and intact proteins obtained by nanoLC-ESI MS analysis at room and elevated temperatures. Anal Bioanal Chem 2016; 408:3953-68. [DOI: 10.1007/s00216-016-9386-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 12/26/2022]
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10
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Preparation of monodisperse porous poly(glycidylmethacrylate-co-ethylenedimethacrylate) microspheres and their application as stationary phase for superheated water HPLC. Talanta 2016; 147:358-63. [DOI: 10.1016/j.talanta.2015.10.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 12/19/2022]
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11
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John H, Mikler J, Worek F, Thiermann H. Reversed-phase ion-pair chromatography-diode array detection of the bispyridinium compound MB327: plasma analysis of a potential novel antidote for the treatment of organophosphorus poisoning. Drug Test Anal 2015; 8:154-63. [PMID: 26041012 DOI: 10.1002/dta.1821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 05/12/2015] [Accepted: 05/12/2015] [Indexed: 11/08/2022]
Abstract
In the case of poisoning by organophosphorus nerve agents or pesticides, there is still a lack of pharmacological treatment of the cholinergic crisis selectively targeting the nicotinic acetylcholine receptor. Recently, the compound MB327 was identified as a potential novel lead structure to close this gap, thus demanding a quantitative assay for initial pharmacokinetic (PK) studies. MB327 is a salt consisting of the dicationic bispyridinium compound (BPC) 1,1´-(propane-1,3-diyl)bis(4-tert-butylpyridinium) and two iodide counter ions. Due to the permanent positive charge of the BPC, an isocratic reversed-phase ion-pair chromatographic separation (RPIPC) was developed using heptanesulfonic acid as ion-pairing reagent and 45% v/v methanol as organic modifier (1 mL/min). Selective UV-detection (230 nm) was done by a diode array detector (DAD) for reliable, rugged, precise (RSD < 7%) and accurate (96-104%) quantitative analysis of 50 μL swine plasma (linear range 1-1000 µg BPC/mL plasma, lower limit of quantification 2 µg/mL). During method validation, diverse parameters essential for the chromatographic process were investigated to generate van´t Hoff, van Deemter and width plots allowing calculation of thermodynamic data like the distribution constant K (5.7 ± 0.3), change in enthalpy, ΔH(0) : -23.66 kJ/mol, and entropy, ΔS(0) : -65 J/(mol*K). In addition, RPIPC-DAD analysis enabled calculation of molar absorptivities of the BPC, ε230 : 17 400 ± 1100 L/(mol*cm), and iodide, ε230 : 9900 ± 400 L/(mol*cm), which determination was hampered by interference with each other in conventional cuvette UV-spectrophotometric measurements. Finally, the RPIPC-DAD procedure was applied to samples from an in vivo study of swine.
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Affiliation(s)
- Harald John
- Bundeswehr Institute of Pharmacology and Toxicology, Munich, Germany
| | - John Mikler
- Defence Research and Development Canada-Suffield Research Station, Medicine Hat, Alberta, Canada
| | - Franz Worek
- Bundeswehr Institute of Pharmacology and Toxicology, Munich, Germany
| | - Horst Thiermann
- Bundeswehr Institute of Pharmacology and Toxicology, Munich, Germany
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12
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Wu Y, Deng X, Mao Y, Zhang Y, Liu J, Rong L, Xu Z. Retention mechanism of phenolic compounds in subcritical water chromatography. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-4360-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Flow rate dependent extra-column variance from injection in capillary liquid chromatography. J Chromatogr A 2014; 1380:38-44. [PMID: 25591400 DOI: 10.1016/j.chroma.2014.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 11/14/2014] [Accepted: 12/05/2014] [Indexed: 11/20/2022]
Abstract
Efficiency and resolution in capillary liquid chromatography (LC) can be significantly affected by extra-column band broadening, especially for isocratic separations. This is particularly a concern in evaluating column bed structure using non-retained test compounds. The band broadening due to an injector supplied with a commercially available capillary LC system was characterized from experimental measurements. The extra-column variance from the injection valve was found to have an extra-column contribution independent of the injection volume, showing an exponential dependence on flow rate. The overall extra-column variance from the injection valve was found to vary from 34 to 23 nL. A new mathematical model was derived that explains this exponential contribution of extra-column variance on chromatographic performance. The chromatographic efficiency was compromised by ∼130% for a non-retained analyte because of injection valve dead volume. The measured chromatographic efficiency was greatly improved when a new nano-flow pumping system with integrated injection valve was used.
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14
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Haun J, Oeste K, Teutenberg T, Schmidt TC. Long-term high-temperature and pH stability assessment of modern commercially available stationary phases by using retention factor analysis. J Chromatogr A 2012; 1263:99-107. [DOI: 10.1016/j.chroma.2012.09.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/06/2012] [Accepted: 09/12/2012] [Indexed: 11/15/2022]
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15
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Elevated Temperature Separations on Hybrid Stationary Phases with Low Proportions of Organic Modifier in the Eluent. Chromatographia 2011. [DOI: 10.1007/s10337-011-1966-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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A study of some practical aspects of high temperature liquid chromatography in pharmaceutical applications. J Pharm Biomed Anal 2011; 54:458-62. [DOI: 10.1016/j.jpba.2010.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 08/30/2010] [Accepted: 09/10/2010] [Indexed: 11/21/2022]
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17
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de la Guardia M, Armenta S. Multianalyte Determination Versus One-at-a-Time Methodologies. GREEN ANALYTICAL CHEMISTRY 2011. [DOI: 10.1016/b978-0-444-53709-6.00006-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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18
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Huang G, Smith RM, Albishri HM, Lin JM. Thermal Stability of Thiazide and Related Diuretics During Superheated Water Chromatography. Chromatographia 2010. [DOI: 10.1365/s10337-010-1789-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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Thermodynamic and kinetic characterization of a bridged-ethylene hybrid C18 stationary phase. J Chromatogr A 2010; 1217:6241-9. [DOI: 10.1016/j.chroma.2010.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 08/02/2010] [Accepted: 08/06/2010] [Indexed: 11/18/2022]
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20
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Jardim ICSF, Maldaner L, Lourenço J, Fioravanti LMA, Collins CH. Some new selective stationary phases for RP-HPLC. J Sep Sci 2010; 33:2917-29. [DOI: 10.1002/jssc.201000313] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Allmon SD, Dorsey JG. Properties of subcritical water as an eluent for reversed-phase liquid chromatography—Disruption of the hydrogen-bond network at elevated temperature and its consequences. J Chromatogr A 2010; 1217:5769-75. [DOI: 10.1016/j.chroma.2010.07.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2010] [Revised: 06/15/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
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22
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Olariu RI, Vione D, Grinberg N, Arsene C. SAMPLE PREPARATION FOR TRACE ANALYSIS BY CHROMATOGRAPHIC METHODS. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826076.2010.484371] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Romeo-Iulian Olariu
- a Department of Chemistry , Faculty of Chemistry, Laboratory of Analytical Chemistry, “Al. I. Cuza” University of Iasi , Iasi , Romania
| | - Davide Vione
- b Dipartimento di Chimica Analitica , Università di Torino , Torino , Italy
| | - Nelu Grinberg
- c Boehringer Ingelheim Pharmaceuticals Inc. , Ridgefield , Connecticut , USA
| | - Cecilia Arsene
- a Department of Chemistry , Faculty of Chemistry, Laboratory of Analytical Chemistry, “Al. I. Cuza” University of Iasi , Iasi , Romania
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Teutenberg T, Wagner P, Gmehling J. High-temperature liquid chromatography. Part I. Determination of the vapour pressures of binary solvent mixtures—Implications for liquid chromatographic separations. J Chromatogr A 2009; 1216:6471-80. [DOI: 10.1016/j.chroma.2009.07.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Revised: 07/06/2009] [Accepted: 07/17/2009] [Indexed: 11/25/2022]
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24
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Teutenberg T. Potential of high temperature liquid chromatography for the improvement of separation efficiency—A review. Anal Chim Acta 2009; 643:1-12. [DOI: 10.1016/j.aca.2009.04.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 04/01/2009] [Accepted: 04/03/2009] [Indexed: 10/20/2022]
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25
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Retention mechanisms in subcritical water reversed-phase chromatography. J Chromatogr A 2009; 1216:5106-11. [DOI: 10.1016/j.chroma.2009.04.068] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 04/13/2009] [Accepted: 04/22/2009] [Indexed: 11/17/2022]
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26
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Shillingford S, Bishop L, Smith CJ, Payne R, Wilson ID, Edge AM. Application of High Temperature LC to the Separation of AZD5438 (4-(1-Isopropyl-2-methyl-1H-imidazol-5-yl)-N-[4-(methylsulfonyl)phenyl]pyrimidin-2-amine) and Its Metabolites: Comparison of LC, UPLC and HTLC. Chromatographia 2009. [DOI: 10.1365/s10337-009-1135-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Practical assessment of frictional heating effects and thermostat design on the performance of conventional (3μm and 5μm) columns in reversed-phase high-performance liquid chromatography. J Chromatogr A 2009; 1216:3961-9. [DOI: 10.1016/j.chroma.2009.03.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 02/27/2009] [Accepted: 03/06/2009] [Indexed: 11/20/2022]
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28
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Teutenberg T, Hollebekkers K, Wiese S, Boergers A. Temperature and pH-stability of commercial stationary phases. J Sep Sci 2009; 32:1262-74. [DOI: 10.1002/jssc.200800712] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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de Villiers A, Cabooter D, Lynen F, Desmet G, Sandra P. High performance liquid chromatography analysis of wine anthocyanins revisited: effect of particle size and temperature. J Chromatogr A 2009; 1216:3270-9. [PMID: 19264316 DOI: 10.1016/j.chroma.2009.02.038] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 02/11/2009] [Accepted: 02/13/2009] [Indexed: 10/21/2022]
Abstract
The complex anthocyanin fraction of red wines poses a demanding analytical challenge. We have found that anthocyanins are characterised by extremely low optimal chromatographic velocities, and as a consequence generic HPLC methods suffer from limited resolving power. Slow on-column inter-conversion reactions, particularly between carbinol and flavylium species, are shown to occur on the same time scale as chromatographic separation, leading to increased plate heights at normal chromatographic velocities. In order to improve current routine HPLC separations, the use of small (1.7 microm) particles and high temperature liquid chromatography (HTLC) were investigated. 1.7 microm particles provide better efficiency and higher optimal linear velocities, although column lengths of approximately 20 cm should be used to avoid the detrimental effects of conversion reactions. More importantly, operation at temperatures up to 50 degrees C increases the kinetics of inter-conversion reactions, and implies significantly improved efficiency under relatively mild analysis conditions. It is further demonstrated using relevant kinetic data that no on-column thermal degradation of these thermally labile compounds is observed at 50 degrees C and analysis times of <2h.
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Affiliation(s)
- André de Villiers
- University of Stellenbosch, Department of Chemistry, Private Bag X1, Matieland, South Africa.
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30
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High-temperature liquid chromatography of steroids on a bonded hybrid column. Anal Bioanal Chem 2009; 394:1255-60. [DOI: 10.1007/s00216-009-2602-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 12/19/2008] [Accepted: 01/07/2009] [Indexed: 10/21/2022]
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31
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Heinisch S, Rocca JL. Sense and nonsense of high-temperature liquid chromatography. J Chromatogr A 2009; 1216:642-58. [DOI: 10.1016/j.chroma.2008.11.079] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Revised: 11/13/2008] [Accepted: 11/20/2008] [Indexed: 10/21/2022]
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32
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Wang Y, Grinberg N, McCaffrey J, Norwood DL. Effects of Perchloric Acid on High Temperature Liquid Chromatography. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802281695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yuwen Wang
- a Boehringer Ingelheim Pharmaceuticals, Inc , Ridgefield, Connecticut, USA
| | - Nelu Grinberg
- a Boehringer Ingelheim Pharmaceuticals, Inc , Ridgefield, Connecticut, USA
| | - John McCaffrey
- a Boehringer Ingelheim Pharmaceuticals, Inc , Ridgefield, Connecticut, USA
| | - Daniel L. Norwood
- a Boehringer Ingelheim Pharmaceuticals, Inc , Ridgefield, Connecticut, USA
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33
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Superheated water chromatography on phenyl bonded hybrid stationary phases. J Chromatogr A 2008; 1201:61-4. [DOI: 10.1016/j.chroma.2008.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Revised: 06/04/2008] [Accepted: 06/11/2008] [Indexed: 11/23/2022]
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34
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A new generation of more pH stable reversed phases prepared by silanization of zirconized silica. J Chromatogr A 2008; 1191:90-8. [DOI: 10.1016/j.chroma.2008.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2007] [Revised: 01/07/2008] [Accepted: 01/08/2008] [Indexed: 11/17/2022]
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35
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Gika HG, Theodoridis G, Extance J, Edge AM, Wilson ID. High temperature-ultra performance liquid chromatography-mass spectrometry for the metabonomic analysis of Zucker rat urine. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 871:279-87. [PMID: 18485837 DOI: 10.1016/j.jchromb.2008.04.020] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 04/10/2008] [Accepted: 04/14/2008] [Indexed: 11/25/2022]
Abstract
The applicability and potential of using elevated temperatures and sub 2-microm porous particles in chromatography for metabonomics/metabolomics was investigated using, for the first time, solvent temperatures higher than the boiling point of water (up to 180 degrees C) and thermal gradients to reduce the use of organic solvents. Ultra performance liquid chromatography, combined with mass spectrometry, was investigated for the global metabolite profiling of the plasma and urine of normal and Zucker (fa/fa) obese rats (a well established disease animal model). "Isobaric" high temperature chromatography, where the temperature and flow rate follow a gradient program, was developed and evaluated against a conventional organic solvent gradient. LC-MS data were first examined by established chromatographic criteria in order to evaluate the chromatographic performance and next were treated by special peak picking algorithms to allow the application of multivariate statistics. These studies showed that, for urine (but not plasma), chromatography at elevated temperatures provided better results than conventional reversed-phase LC with higher peak capacity and better peak asymmetry. From a systems biology point of view, better group clustering and separation was obtained with a larger number of variables of high importance when using high temperature-ultra performance liquid chromatography (HT-UPLC) compared to conventional solvent gradients.
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Affiliation(s)
- Helen G Gika
- Clinical Pharmacology and Drug Metabolism and Pharmacokinetics, AstraZeneca Pharmaceuticals, Alderley Park, Macclesfield, Cheshire SK10 4TG, UK.
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Theodoridis G, Gika HG, Wilson ID. LC-MS-based methodology for global metabolite profiling in metabonomics/metabolomics. Trends Analyt Chem 2008. [DOI: 10.1016/j.trac.2008.01.008] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Edge AM, Wilson ID, Shillingford S. Thermal Gradients for the Control of Elution in RP-LC: Application to the Separation of Model Drugs. Chromatographia 2007. [DOI: 10.1365/s10337-007-0433-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Nguyen DTT, Guillarme D, Heinisch S, Barrioulet MP, Rocca JL, Rudaz S, Veuthey JL. High throughput liquid chromatography with sub-2μm particles at high pressure and high temperature. J Chromatogr A 2007; 1167:76-84. [PMID: 17765255 DOI: 10.1016/j.chroma.2007.08.032] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Revised: 07/06/2007] [Accepted: 08/14/2007] [Indexed: 10/22/2022]
Abstract
In this study, ultra performance liquid chromatography (UPLC) using pressures up to 1,000 bar and columns packed with sub-2 microm particles has been combined with high temperature mobile phase conditions (up to 90 degrees C). By using high temperature ultra performance liquid chromatography (HT-UPLC), it is possible to drastically decrease the analysis time without loss in efficiency. The stability and chromatographic behavior of sub-2 microm particles were evaluated at high temperature and high pressure. The chromatographic support remained stable after 500 injections (equivalent to 7,500 column volumes) and plate height curves demonstrated the capability of HT-UPLC to obtain fast separations. For example, a separation of nine doping agents was performed in less than 1 min with sub-2 microm particles at 90 degrees C. Furthermore, a shorter column (30 mm length) was used and allowed a separation of eight pharmaceutical compounds in only 40s.
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Affiliation(s)
- Dao T-T Nguyen
- Laboratory of Analytical Pharmaceutical Chemistry, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Boulevard d'Yvoy 20, 1211 Geneva 4, Switzerland
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39
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Yang Y. Subcritical water chromatography: A green approach to high-temperature liquid chromatography. J Sep Sci 2007; 30:1131-40. [PMID: 17595948 DOI: 10.1002/jssc.200700008] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
At temperatures and pressures lower than 374 degrees C and 218 atm, subcritical water has widely tunable properties such as dielectric constant, surface tension, viscosity, and dissociation constant achieved by simply adjusting the temperature with a moderate pressure to keep water in the liquid state. At elevated temperatures, water acts like a weak polar organic solvent. Thus, subcritical water has been used as a green eluent to replace hazardous solvents commonly used as organic modifiers in RPLC. Subcritical water chromatography (SBWC) is capable of separating polar, moderately polar, and even some nonpolar analytes. Most of these low molecular weight solutes are stable at elevated temperatures during a chromatographic run. Some new packing materials are also quite stable and robust at mild temperatures ranging from 80 to 150 degrees C. Advantages of SBWC include the elimination of hazardous organic solvents used in traditional RPLC, rapid analysis time, improved selectivity, temperature-dependent separation efficiency, temperature-programmed elution, and compatibility with both gas- and liquid-phase detectors. In this paper, the technical aspects as well as the applications of SBWC are reviewed. Topics addressed in this review include the unique characteristics of subcritical water, analytes separated by SBWC, packing materials tested for SBWC, the application of GC and LC detection techniques in SBWC, SBWC instrumentation development, temperature effects on SBWC separation, and models developed for separation in SBWC.
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Affiliation(s)
- Yu Yang
- Department of Chemistry, East Carolina University, Science and Technology Building, Suite 300, Greenville, NC 27858, USA.
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40
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Plumb R, Mazzeo JR, Grumbach ES, Rainville P, Jones M, Wheat T, Neue UD, Smith B, Johnson KA. The application of small porous particles, high temperatures, and high pressures to generate very high resolution LC and LC/MS separations. J Sep Sci 2007; 30:1158-66. [PMID: 17595951 DOI: 10.1002/jssc.200600492] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The effect of combining sub-2 microm porous particles with elevated operating temperatures on chromatographic performance has been investigated in terms of chromatographic efficiency, productivity, peak elution order, and observed operating pressure. The use of elevated temperature in LC does not increase the obtainable performance but allows the same performance to be obtained in less time. Increasing the column temperature did allow the use of longer columns, generating column efficiencies in excess of 100,000 plates and gradient peak capacities approaching 1000. Raising the temperature increased the optimal mobile phase linear velocity, negating somewhat the pressure benefits observed by reducing the solvent viscosity. When operating at higher temperature the analyte retention is not only reduced, but the order of elution will also often change. High temperature separations allowed exotic organic modifiers such as isopropanol to be exploited for alternative selectivity and faster analysis. Finally, care must be taken when using high temperature separations to ensure that the narrow peak widths produced do not compromise the quality of data obtained from detectors such as high resolution mass spectrometers.
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Affiliation(s)
- Robert Plumb
- Pharmaceutical Application and Development Manager, Waters Corporation, 34 Maple Street, M/S GC, Milford, MA 01757, USA.
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41
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Smith RM. Superheated water chromatography--a green technology for the future. J Chromatogr A 2007; 1184:441-55. [PMID: 17658536 DOI: 10.1016/j.chroma.2007.07.002] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2007] [Revised: 06/27/2007] [Accepted: 07/02/2007] [Indexed: 10/23/2022]
Abstract
Reversed phase liquid chromatography using superheated water as the mobile phase, at temperatures between 100 and 250 degrees C, offers a number of advantages for the analyst. It is an environmentally clean solvent, reducing solvent usage and disposal costs. It has advantages in detection, allowing UV spectra to be monitored down to short wavelengths, as well as a compatibility with universal flame ionisation detection and mass spectroscopy. By employing deuterium oxide as the eluent, solvent free NMR spectra can be measured. The development of newer more thermally stable stationary phases, including hybrid phases, have expanded the analytes that can be examined and these now range from alkylbenzenes, phenols, alkyl aryl ketones and a number of pharmaceuticals to carboxylic acids, amino acids, and carbohydrates. Very few compounds have been found to be unstable during the analysis. The separation methods can be directly coupled to superheated water extraction providing a totally solvent free system for sample extraction and analysis.
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Affiliation(s)
- Roger M Smith
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, UK.
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42
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Prakash C, Shaffer CL, Nedderman A. Analytical strategies for identifying drug metabolites. MASS SPECTROMETRY REVIEWS 2007; 26:340-69. [PMID: 17405144 DOI: 10.1002/mas.20128] [Citation(s) in RCA: 191] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
With the dramatic increase in the number of new chemical entities (NCEs) arising from combinatorial chemistry and modern high-throughput bioassays, novel bioanalytical techniques are required for the rapid determination of the metabolic stability and metabolites of these NCEs. Knowledge of the metabolic site(s) of the NCEs in early drug discovery is essential for selecting compounds with favorable pharmacokinetic credentials and aiding medicinal chemists in modifying metabolic "soft spots". In development, elucidation of biotransformation pathways of a drug candidate by identifying its circulatory and excretory metabolites is vitally important to understand its physiological effects. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) have played an invaluable role in the structural characterization and quantification of drug metabolites. Indeed, liquid chromatography (LC) coupled with atmospheric pressure ionization (API) MS has now become the most powerful tool for the rapid detection, structure elucidation, and quantification of drug-derived material within various biological fluids. Often, however, MS alone is insufficient to identify the exact position of oxidation, to differentiate isomers, or to provide the precise structure of unusual and/or unstable metabolites. In addition, an excess of endogenous material in biological samples often suppress the ionization of drug-related material complicating metabolite identification by MS. In these cases, multiple analytical and wet chemistry techniques, such as LC-NMR, enzymatic hydrolysis, chemical derivatization, and hydrogen/deuterium-exchange (H/D-exchange) combined with MS are used to characterize the novel and isomeric metabolites of drug candidates. This review describes sample preparation and introduction strategies to minimize ion suppression by biological matrices for metabolite identification studies, the application of various LC-tandem MS (LC-MS/MS) techniques for the rapid quantification and identification of drug metabolites, and future trends in this field.
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Affiliation(s)
- Chandra Prakash
- Pfizer Global Research and Development, Eastern Point Road, Groton, Connecticut 06340, USA.
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43
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Shen S, Lee H, McCaffrey J, Yee N, Senanayake C, Grinberg N, Clark J. High Temperature High Performance Liquid Chromatography of Substituted Anilines using a C18 Hybrid Stationary Phase. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826070600959294] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sherry Shen
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - Heewon Lee
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - John McCaffrey
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - Nathan Yee
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - Chris Senanayake
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - Nelu Grinberg
- a Boehringer Ingelheim Pharmaceuticals, Inc. , Ridgefield, Connecticut, USA
| | - Jody Clark
- b Selerity Technologies , Salt Lake City, Utah, USA
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de Villiers A, Lestremau F, Szucs R, Gélébart S, David F, Sandra P. Evaluation of ultra performance liquid chromatography. J Chromatogr A 2006; 1127:60-9. [PMID: 16797562 DOI: 10.1016/j.chroma.2006.05.071] [Citation(s) in RCA: 198] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 05/18/2006] [Accepted: 05/24/2006] [Indexed: 11/18/2022]
Abstract
A practical evaluation of the possibilities and limitations of ultra performance liquid chromatography (UPLC) is presented. Acquity BEH columns packed with 1.7 microm particles are evaluated by means of van Deemter and Knox plots. The columns are characterised by high optimal velocities (3.7 mm/s) and low plate heights (4.4 microm). Minimum plate heights of 2d(p) were, however, not reached and reasons are presented and discussed. Furthermore, the use of 1.7 microm particles at 1000 bar is compared, from a theoretical viewpoint, to conventional LC (3.5 and 5 microm particles at 400 bar) in terms of analysis speed and practical maximum efficiency. Experimental data are used to construct kinetic- or "Poppe-plots", which facilitate investigation of the effect of pressure and particle size on speed and efficiency. It is found that UPLC conditions hold advantages in terms of speed of analysis, for required theoretical plate counts up to approximately 80,000.
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Affiliation(s)
- André de Villiers
- Pfizer Analytical Research Centre, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
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Vanhoenacker G, Sandra P. Elevated temperature and temperature programming in conventional liquid chromatography – fundamentals and applications. J Sep Sci 2006; 29:1822-35. [PMID: 16970186 DOI: 10.1002/jssc.200600160] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Temperature, as a powerful variable in conventional LC is discussed from a fundamental point of view and illustrated with applications from the author's laboratory. Emphasis is given to the influence of temperature on speed, selectivity, efficiency, detectability, and mobile phase composition (green chromatography). The problems accompanying the use of elevated temperature and temperature programming in LC are reviewed and solutions are described. The available stationary phases for high temperature operation are summarized and a brief overview of recent applications reported in the literature is given.
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