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Radoičić A, Šegan S, Milojković-Opsenica D. Exploring separation mechanisms and lipophilicity in hydrophilic interaction chromatography conditions by thin-layer chromatography of anesthetics and adjuvant drugs as polar model compounds. J Sep Sci 2024; 47:e2400099. [PMID: 38937914 DOI: 10.1002/jssc.202400099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/16/2024] [Accepted: 06/07/2024] [Indexed: 06/29/2024]
Abstract
The chromatographic behavior of the selected compounds was studied under conditions of hydrophilic interaction liquid chromatography (HILIC). The effect of mobile phase composition on the retention in different chromatographic systems was systematically examined using high-performance thin-layer chromatography. The sorbents of different polarity and adsorption characteristics were selected and mixtures of water and organic solvents of various compositions, from pure water to pure organic solvent were used as mobile phases. Increasing the amount of water in the mobile phase leads to a conversion of the separation mechanism, and the retention curves have a characteristic "U" shape. The conversion between the adsorption and partition mechanisms is most likely continuous and depends on the chemical nature of separated substances, the stationary phase as well as on organic component of the mobile phase. Silica gel can be considered the most suitable stationary phase for the systematic investigation of the chromatographic behavior of the test compounds, whereas acetonitrile was the most suitable solvent. The obtained results contribute to the understanding of the dominant separation mechanism, the type, and the intensity of the interactions between separated substances with both stationary and mobile phases. Besides, the lipophilicity parameters obtained under HILIC conditions were evaluated and correlated with the calculated values.
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Affiliation(s)
| | - Sandra Šegan
- Department of Chemistry, Institute of Chemistry, Technology, and Metallurgy, University of Belgrade, Belgrade, Serbia
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Obradović D, Savić J, Joksimović J, Kowalska T, Agbaba D. Hydrophilic retention mechanism of imidazoline and serotonin receptor ligands in thin-layer and high-performance liquid chromatography systems. JPC-J PLANAR CHROMAT 2022. [DOI: 10.1007/s00764-022-00172-6] [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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Obradović D, Komsta Ł, Agbaba D. Novel computational approaches to retention modeling in dual hydrophilic interactions/reversed phase chromatography. J Chromatogr A 2020; 1619:460951. [PMID: 32085914 DOI: 10.1016/j.chroma.2020.460951] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 10/25/2022]
Abstract
The mixed-mode chromatographic behavior was estimated for imidazoline and serotonin receptor ligands, and their related compounds on dual hydrophilic/reversed phase stationary phase. The Box-Cox transformation was used to obtain the most suitable mathematical equations which describe the mixed-mode retention. Optimal equations were found for the optimization parameter (λ): λ = -1, λ = -0.5, λ = 0, λ = 0.5, and λ = 1. The proposed equations show satisfactory characteristics compared to standard multimodal and quadratic approaches. For a wide range of volume fractions of the mobile phase modifier, crossing between hydrophilic and reversed phase interactions (the turning point) was defined in terms of the minimal retention and the minimum value of the volume fraction of the aqueous eluent in the mobile phase. The cubic spline interpolation was used as a reference method for estimation of the turning point. It was found out that the newly proposed equations can be used as alternative mathematical forms for the description of the dual retention mechanism and for the evaluation of the turning point. Three new experimental descriptors of the mixed-mode retention were proposed. Two descriptors quantitatively characterize hydrophilic (log kH) and reversed phase (log kR) interactions, while the third one (log kA) refers to the average retention for the whole HILIC/RP range. It was established that the main factors which control dual nature of the mixed-mode retention are lipophilicity, dipol-dipol, van der Waals and hydrogen bonding interactions. It was concluded that the newly proposed estimations of the retention data reliably characterize the mixed-mode chromatographic behavior.
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Affiliation(s)
- Darija Obradović
- Department of Pharmaceutical Chemistry, University of Belgrade-Faculty of Pharmacy, Vojvode Stepe 450 11 000 Belgrade, Serbia.
| | - Łukasz Komsta
- Chair and Department of Medicinal Chemistry, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 4 20-090 Lublin, Poland
| | - Danica Agbaba
- Department of Pharmaceutical Chemistry, University of Belgrade-Faculty of Pharmacy, Vojvode Stepe 450 11 000 Belgrade, Serbia
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Obradović D, Oljačić S, Nikolić K, Agbaba D. Investigation and prediction of retention characteristics of imidazoline and serotonin receptor ligands and their related compounds on mixed-mode stationary phase. J Chromatogr A 2019; 1585:92-104. [DOI: 10.1016/j.chroma.2018.11.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 12/17/2022]
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Li H, Zhang X, Zhang L, Wang X, Kong F, Fan D, Li L, Wang W. Preparation of a silica stationary phase co-functionalized with Wulff-type phenylboronate and C12 for mixed-mode liquid chromatography. Anal Chim Acta 2017; 962:104-113. [PMID: 28231874 DOI: 10.1016/j.aca.2017.01.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 01/14/2017] [Accepted: 01/18/2017] [Indexed: 10/20/2022]
Abstract
A silica stationary phase was designed and synthesized through the co-functionalization of silica with Wulff-type phenylboronate and C12 for mixed-mode liquid chromatography applications. The as-synthesized stationary phase was characterized by elemental analysis and Fourier Transform-InfraRed Spectroscopy (FT-IR). Retention mechanisms, including boronate affinity (BA), reversed-phase (RP) and anion-exchange (AE), were involved. Retention mechanism switching was easily realized by adjustment of the mobile phase constitution. Cis-diol compounds could be selectively captured under neutral conditions in BA mode and off-line separated in RP mode. Neutral, basic, acidic and amphiprotic compounds were chromatographed on the column in RP chromatography, while inorganic anions were chromatographed in AE chromatography to characterize the mixed-mode nature of the prepared stationary phase. In addition, the RP performance was compared with an octadecyl silica column in terms of column efficiency (N/m), asymmetry factor (Af), retention factor (k) and resolution (Rs). The prepared stationary phase offered multiple interactions with analytes in addition to hydrophobic interactions under RP elution conditions. Based on the mixed-mode properties, off-line 2D-LC, for selective capture and separation of urinary nucleosides, was successfully realized on a single column, demonstrating its powerful application potential for complex samples.
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Affiliation(s)
- Hengye Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China
| | - Xuemeng Zhang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China
| | - Lin Zhang
- Yancheng Entry-Exit Inspection and Quarantine Bureau, Yancheng, 224000, China
| | - Xiaojin Wang
- Huai'an Entry-Exit Inspection and Quarantine Bureau, Huai'an, 223001, China
| | - Fenying Kong
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China
| | - Dahe Fan
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China
| | - Lei Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224000, China.
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Kamińska J, Chutkowski M, Zapała L, Zapała W. Studies on the sorption behavior of quercetin, phenol, and caffeine as test substances on diol mixed-mode HILIC column. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1141364] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Justyna Kamińska
- Department of Chemical and Process Engineering, Chemical Faculty, Rzeszów University of Technology, Rzeszów, Poland
| | - Marcin Chutkowski
- Department of Chemical and Process Engineering, Chemical Faculty, Rzeszów University of Technology, Rzeszów, Poland
| | - Lidia Zapała
- Department of Inorganic and Analytical Chemistry, Chemical Faculty, Rzeszów University of Technology, Rzeszów, Poland
| | - Wojciech Zapała
- Department of Chemical and Process Engineering, Chemical Faculty, Rzeszów University of Technology, Rzeszów, Poland
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Preparation, characterization and application of a reversed phase liquid chromatography/hydrophilic interaction chromatography mixed-mode C18-DTT stationary phase. Talanta 2016; 146:442-51. [DOI: 10.1016/j.talanta.2015.09.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/02/2015] [Accepted: 09/06/2015] [Indexed: 11/24/2022]
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Liu S, Xu H, Yu J, Li D, Li M, Qiao X, Qin X, Yan H. Novel imidazolium-embedded N,N-dimethylaminopropyl-functionalized silica-based stationary phase for hydrophilic interaction/reversed-phase mixed-mode chromatography. Anal Bioanal Chem 2015; 407:8989-97. [DOI: 10.1007/s00216-015-9064-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/15/2015] [Accepted: 09/17/2015] [Indexed: 01/15/2023]
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Wang Q, Ye M, Xu L, Shi ZG. A reversed-phase/hydrophilic interaction mixed-mode C18-Diol stationary phase for multiple applications. Anal Chim Acta 2015; 888:182-90. [DOI: 10.1016/j.aca.2015.06.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/24/2015] [Accepted: 06/26/2015] [Indexed: 01/25/2023]
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Andrić F, Héberger K. Chromatographic and computational assessment of lipophilicity using sum of ranking differences and generalized pair-correlation. J Chromatogr A 2015; 1380:130-8. [DOI: 10.1016/j.chroma.2014.12.073] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 12/22/2014] [Accepted: 12/23/2014] [Indexed: 10/24/2022]
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Voicu V, Rădulescu FŞ, Medvedovici A. Relationships between the antidotal efficacy and structure, PK/PD parameters and bio-relevant molecular descriptors of AChE reactivating oximes: inclusion and integration to biopharmaceutical classification systems. Expert Opin Drug Metab Toxicol 2014; 11:95-109. [DOI: 10.1517/17425255.2015.980813] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Victor Voicu
- 1Romanian Academy, Medical Sciences Section, Calea Victoriei no. 125, Bucharest – 010071, Romania
- 2University of Medicine and Pharmacy “Carol Davila”, Faculty of Medicine, Department of Clinical Pharmacology, Toxicology and Psychopharmacology, Şcoala Floreasca Street no. 8, Bucharest - 011643, Romania
| | - Flavian Ştefan Rădulescu
- 3University of Medicine and Pharmacy “Carol Davila”, Faculty of Pharmacy, Department of Drug Industry and Pharmaceutical Biotechnology, Traian Vuia Street no. 6, Bucharest-020956, Romania
| | - Andrei Medvedovici
- 4University of Bucharest, Faculty of Chemistry, Department of Analytical Chemistry, Panduri Ave., no. 90, Bucharest- 050663, Romania
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