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West C. Supercritical fluid chromatography is not (only) normal-phase chromatography. J Chromatogr A 2024; 1713:464546. [PMID: 38041976 DOI: 10.1016/j.chroma.2023.464546] [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: 10/30/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023]
Abstract
Supercritical fluid chromatography (SFC), now using carbon dioxide as a major component of the mobile phase, has been known for over 60 years but still some misunderstandings remain about its capabilities. Amongst them, SFC is often described as a normal-phase chromatographic technique, based on different considerations: polarity of the stationary phase, elution order of the analytes, relative non-polarity of the mobile phase, non-linear retention behaviour, or adsorption retention mechanisms. All of these assumptions are true to a certain extent, and in certain circumstances. But also, all of these assumptions are wrong in different circumstances. In this paper, the criteria to categorize SFC as a normal-phase chromatographic method will be examined individually, considering all knowledge acquired from the early years of its development. Finally, it will appear that the "normal-phase" glass lens is greatly reducing the true extent of SFC's possibilities.
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Affiliation(s)
- Caroline West
- Institute of Organic and Analytical Chemistry, University of Orleans, CNRS UMR7311, rue de Chartres - BP 6759, Orléans 45067, France.
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2
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Shah PA, Shrivastav PS, Sharma VS. Supercritical fluid chromatography for the analysis of antihypertensive Drugs: A short review. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Yue ZX, Gu YX, Yan TC, Li MH, Zheng H, Cao J. Ion pair-based mobile phase additives to improve the separation of alkaloids in supercritical fluid chromatography. J Pharm Biomed Anal 2022; 208:114467. [PMID: 34775191 DOI: 10.1016/j.jpba.2021.114467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/07/2021] [Accepted: 11/02/2021] [Indexed: 01/05/2023]
Abstract
In this study, a supercritical fluid chromatography (SFC) method based on ion pair reagents was used to separate alkaloids. The chromatographic parameters, including the stationary phase, additive type, additive concentration, outlet pressure, temperature and flow rate, were optimized. Baseline separation was completed in 20 min on an Agilent Pursuit 5 PFP column (4.6 × 150 mm) using carbon dioxide as the mobile phase and 7.5 mM sodium 1-pentanesulfonate as an additive with gradient elution at 140 bar, 60 °C, and a flow rate of 1.5 mL/min. The retention rate and resolution of the analytes were satisfactory. The limits of detection were 27.04-298.03 ng/mL, and the limits of quantification were 90.15-993.42 ng/mL. The recoveries of low and high concentrations were 77.46-111.86% and 83.84-111.00%, respectively. This ion pair additive greatly improved the separation efficiency of alkaloids. Consequently, this SFC method was successfully applied to the separation of alkaloids from Rhizoma corydalis.
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Affiliation(s)
- Zi-Xuan Yue
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Yu-Xin Gu
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Tian-Ci Yan
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Min-Hui Li
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Hui Zheng
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, PR China.
| | - Jun Cao
- College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China; College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, PR China.
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Ovchinnikov DV, Ul'yanovskii NV, Kosyakov DS, Pokrovskiy OI. Some Aspects of Additives Effects on Retention in Supercritical Fluid Chromatography Studied by Linear Free Energy Relationships Method. J Chromatogr A 2022; 1665:462820. [DOI: 10.1016/j.chroma.2022.462820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 01/08/2023]
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5
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Khater S, Ferguson P, Grand-Guillaume-Perrenoud A. Method development approaches for small-molecule analytes. SEP SCI TECHNOL 2022. [DOI: 10.1016/b978-0-323-88487-7.00005-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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6
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Spelling V, Stefansson M. Evaluation of chromatographic parameters in supercritical fluid chromatography of amino acids as model polar analytes and extended to polypeptide separations. J Chromatogr A 2020; 1633:461646. [PMID: 33166744 DOI: 10.1016/j.chroma.2020.461646] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/13/2020] [Accepted: 10/26/2020] [Indexed: 11/17/2022]
Abstract
Chromatographic parameters have been evaluated regarding the supercritical fluid chromatography of amino acids as model compounds for polar and chargeable substances of biochemical and biopharmaceutical interest. Their inherent hydrophilicity requires suitable chromatographic conditions regarding stationary and mobile phase to obtain suitable solubility and peak performance. Ten stationary phases differing in polarity and type of ligands including neutral and charged ones were investigated regarding selectivity, peak performance and complementarity/orthogonality. The mobile phase composition regarding solvent and type of buffer additives by varying the degree of hydrophobicity of the acids and bases and degree of substitution in case of the basic amines. Addition of water to the methanol solvent was furthermore found crucial for obtaining a high peak performance. Some complementary selectivity could be obtained depending on a choice of column. Temperature and pressure variations basically only influenced retention with no selectivity changes. Suitable conditions obtained for the amino acids were then successfully applied to oligo- and polypeptides enabling a separation of 4 polypeptides and differing in only one of the 39 amino acids, thereby mimicking analysis of biotransformation reaction products. The utilization of water as mobile phase additive and sulfonic acids as buffer agents could serve as a generic methodology for polar and charged compounds such as amino containing biomolecules.
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Affiliation(s)
- Victor Spelling
- Pharmaceutical Technology & Development, Operations, AstraZeneca, Gothenburg, Sweden; Present address: Early Chemical Development, Innovative New Medicines, AstraZeneca, Gothenburg, Sweden
| | - Morgan Stefansson
- Pharmaceutical Technology & Development, Operations, AstraZeneca, Gothenburg, Sweden.
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Gensh KV, Gensh TS, Bazarnova NG. Chiral Supercritical Fluid Chromatography of 1,2-Aminoalcohols (Review). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793119070066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Foulon C, Di Giulio P, Lecoeur M. Simultaneous determination of inorganic anions and cations by supercritical fluid chromatography using evaporative light scattering detection. J Chromatogr A 2018; 1534:139-149. [DOI: 10.1016/j.chroma.2017.12.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 12/11/2017] [Accepted: 12/16/2017] [Indexed: 01/11/2023]
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9
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Dispas A, Lebrun P, Sacré PY, Hubert P. Screening study of SFC critical method parameters for the determination of pharmaceutical compounds. J Pharm Biomed Anal 2016; 125:339-54. [DOI: 10.1016/j.jpba.2016.04.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/25/2016] [Accepted: 04/01/2016] [Indexed: 01/10/2023]
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Lemasson E, Bertin S, West C. Use and practice of achiral and chiral supercritical fluid chromatography in pharmaceutical analysis and purification. J Sep Sci 2016; 39:212-33. [DOI: 10.1002/jssc.201501062] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 10/21/2015] [Accepted: 10/21/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Elise Lemasson
- Institut de Chimie Organique et Analytique (ICOA); Univ Orleans, CNRS; Orléans cedex France
| | | | - Caroline West
- Institut de Chimie Organique et Analytique (ICOA); Univ Orleans, CNRS; Orléans cedex France
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11
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The many faces of packed column supercritical fluid chromatography – A critical review. J Chromatogr A 2015; 1382:2-46. [DOI: 10.1016/j.chroma.2014.12.083] [Citation(s) in RCA: 282] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 12/15/2014] [Accepted: 12/30/2014] [Indexed: 01/01/2023]
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12
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Perrenoud AGG, Farrell WP, Aurigemma CM, Aurigemma NC, Fekete S, Guillarme D. Evaluation of stationary phases packed with superficially porous particles for the analysis of pharmaceutical compounds using supercritical fluid chromatography. J Chromatogr A 2014; 1360:275-87. [DOI: 10.1016/j.chroma.2014.07.078] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 11/27/2022]
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13
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Chou FM, Chen PH, Wei GT. Evaluation and Measurement of Asymmetric Factor of a Basic Compound on C 18Bonded Silica in Supercritical Fluid Chromatography with Orthogonal Array Design. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201100257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Samokhin AS, Revelsky IA, Chepelyansky DA, Parenago OO, Pokrovsky OI, Lepeshkin FD, Ustinovich KB, Revelsky AI. Supercritical fluid chromatography and its application to analysis and preparation of high-purity compounds. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2013. [DOI: 10.1134/s1990793111080100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dispas A, Lebrun P, Sassiat P, Ziemons E, Thiébaut D, Vial J, Hubert P. Innovative green supercritical fluid chromatography development for the determination of polar compounds. J Chromatogr A 2012; 1256:253-60. [DOI: 10.1016/j.chroma.2012.07.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 07/13/2012] [Accepted: 07/16/2012] [Indexed: 11/26/2022]
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16
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Poole CF. Stationary phases for packed-column supercritical fluid chromatography. J Chromatogr A 2012; 1250:157-71. [DOI: 10.1016/j.chroma.2011.12.040] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 12/11/2011] [Accepted: 12/12/2011] [Indexed: 10/14/2022]
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Abstract
The bioanalytical applications of supercritical fluid techniques, such as supercritical fluid extraction (SFE) and supercritical fluid chromatography (SFC), are of increasing interest. The main role of these techniques is in the sample preparation and separation of biologically active compounds, particularly drugs and their metabolites, as well as endogenous compounds. An insight is given into the different types of extracting fluids and modifiers, detectors, stationary phases, mobile phases and collection strategies. A critical discussion is presented on the existing state of the art concerning the applications of SFC and SFE with a specific focus on its advantages and limitations in the bioanalytical field. New developments and the possibilities for routine work in the near future are also covered.
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Gyllenhaal O, Karlsson A. Evaluation Conditions for SFC of Metoprolol and Related Amino Alcohols on Hypercarb (Porous Graphitic Carbon) with Respect to Structure–Selectivity Relations. Chromatographia 2009. [DOI: 10.1365/s10337-009-1406-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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Farrell WP, Aurigemma CM, Masters-Moore DF. Advances in High Throughput Supercritical Fluid Chromatography. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070902956394] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- William P. Farrell
- a Pfizer Global Research and Development, La Jolla Laboratories , San Diego, California, USA
| | - Christine M. Aurigemma
- a Pfizer Global Research and Development, La Jolla Laboratories , San Diego, California, USA
| | - David F. Masters-Moore
- a Pfizer Global Research and Development, La Jolla Laboratories , San Diego, California, USA
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20
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Using subcritical/supercritical fluid chromatography to separate acidic, basic, and neutral compounds over an ionic liquid-functionalized stationary phase. J Chromatogr A 2009; 1216:3594-9. [DOI: 10.1016/j.chroma.2009.02.057] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 02/15/2009] [Accepted: 02/19/2009] [Indexed: 11/20/2022]
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21
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West C, Fougère L, Lesellier E. Combined supercritical fluid chromatographic tests to improve the classification of numerous stationary phases used in reversed-phase liquid chromatography. J Chromatogr A 2008; 1189:227-44. [DOI: 10.1016/j.chroma.2007.12.062] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Revised: 12/07/2007] [Accepted: 12/10/2007] [Indexed: 11/26/2022]
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Affiliation(s)
- Larry T. Taylor
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061-0212
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Lundgren J, Salomonsson J, Gyllenhaal O, Johansson E. Supercritical fluid chromatography of metoprolol and analogues on aminopropyl and ethylpyridine silica without any additives. J Chromatogr A 2007; 1154:360-7. [PMID: 17449043 DOI: 10.1016/j.chroma.2007.02.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2006] [Revised: 02/08/2007] [Accepted: 02/09/2007] [Indexed: 11/25/2022]
Abstract
Metoprolol and a number of related amino alcohols and similar analytes have been chromatographed on aminopropyl (APS) and ethylpyridine (EPS) silica columns. The mobile phase was carbon dioxide with methanol as modifier and no amine additive was present. Optimal isocratic conditions for the selectivity were evaluated based on experiments using design of experiments. A central composite circumscribed model for each column was used. Factors were column temperature, back-pressure and % (v/v) of modifier. The responses were retention and selectivity versus metoprolol. The % of modifier mainly controlled the retention on both columns but pressure and temperature could also be important for optimizing the selectivity between the amino alcohols. The compounds could be divided into four and five groups on both columns, with respect to the selectivity. Furthermore, on the aminopropyl silica the analytes were more spread out whereas on the ethylpyridine silica, due to its aromaticity, retention and selectivity were closer. For optimal conditions the column temperature and back-pressure should be high and the modifier concentration low. A comparison of the selectivity using optimized conditions show a few switches of retention order between the two columns. On aminopropyl silica an aldehyde failed to be eluted owing to Schiff-base formation. Peak symmetry and column efficiency were briefly studied for some structurally close analogues. This revealed some activity from the columns that affected analytes that had less protected amino groups, a methyl group instead of isopropyl. The tailing was more marked with the ethylpyridine column even with the more bulky alkyl substituents. Plate number N was a better measure than the asymmetry factor since some analyte peaks broadened without serious deterioration of symmetry compared to homologues.
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Affiliation(s)
- Johanna Lundgren
- Analytical Development, Pharmaceutical and Analytical R & D, AstraZeneca R & D Mölndal, S-431 83 Mölndal, Sweden
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