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de Souza Mesquita LM, Contieri LS, Sanches VL, Kamikawachi R, Sosa FHB, Vilegas W, Rostagno MA. Fast and green universal method to analyze and quantify anthocyanins in natural products by UPLC-PDA. Food Chem 2023; 428:136814. [PMID: 37429238 DOI: 10.1016/j.foodchem.2023.136814] [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: 05/12/2023] [Revised: 06/22/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
This work developed a universal UPLC-PDA method based on safe reagents to analyze anthocyanins from different foods. Nine foods were studied by the developed chromatographic method, which was constructed using a solid core C18 column and a binary mobile phase composed of (A) water (0.25 molcitric acid.Lsolvent-1), and (B) ethanol. A total running time of 6 min was obtained, the faster comprehensive method for anthocyanins analysis. Mass spectrometry analysis was employed to identify a comprehensive set of 53 anthocyanins comprising glycosylated and acylated cyanidin, pelargonidin, malvidin, peonidin, petunidin, and delphinidin derivatives. Cyanidin-3-O-glucoside (m/z+ 449) and cyanidin-3-O-rutinoside (m/z+ 595) were used as standards to validate the accuracy of the developed method. The analytical parameters were evaluated, including intra-day and inter-day precision, robustness, repeatability, retention factor (k), resolution, and peak symmetry factor. The current method demonstrated excellent chromatographic resolution, making it a powerful tool for analyzing anthocyanins pigments.
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Affiliation(s)
- Leonardo M de Souza Mesquita
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas, Rua Pedro Zaccaria 1300, Limeira, São Paulo 13484-350, Brazil.
| | - Letícia S Contieri
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas, Rua Pedro Zaccaria 1300, Limeira, São Paulo 13484-350, Brazil
| | - Vitor L Sanches
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas, Rua Pedro Zaccaria 1300, Limeira, São Paulo 13484-350, Brazil
| | - Renan Kamikawachi
- UNESP - Universidade Estadual Paulista, Faculdade de Ciências Farmacêuticas de Araraquara, Araraquara, São Paulo, Brazil
| | - Filipe H B Sosa
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Wagner Vilegas
- UNESP - Universidade Estadual Paulista, Faculdade de Ciências Farmacêuticas de Araraquara, Araraquara, São Paulo, Brazil
| | - Maurício A Rostagno
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), University of Campinas, Rua Pedro Zaccaria 1300, Limeira, São Paulo 13484-350, Brazil.
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Investigation of Imidazolium-Based Ionic Liquids as Additives for the Separation of Urinary Biogenic Amines via Capillary Electrophoresis. SEPARATIONS 2023. [DOI: 10.3390/separations10020116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Ionic liquids (ILs), such as imidazoles, can be used to prevent the sorption of analytes onto the walls of the capillary. Prior works have confirmed that coating the capillary wall with a cationic layer can increase its surface stability, thereby improving the repeatability of the separation process. In this study, micellar electrokinetic chromatography (MEKC) is employed to evaluate how two ILs with different anions—namely, 1-hexyl-3-methylimidazolium chloride [HMIM+Cl−] and 1-hexyl-3-methylimidazolium tetrafluoroborate [HMIM+BF4−]—affect the separation efficiency for biogenic amines (BAs) such as metanephrine (M), normetanephrine (NM), vanilmandelic acid (VMA), and homovanillic acid (HVA) in urine samples. To this end, solid-phase extraction (SPE) is employed using different sample pH values, with the results demonstrating that HVA and VMA is easily extracted at a sample pH of 5.5, while a sample pH of 9.0 facilitated the extraction of M and NM. In the applied SPE protocol, selected analytes were isolated from urine samples using hydrophilic–lipophilic-balanced (HLB) columns and eluted with methanol (MeOH). The validation data confirmed the method’s linearity (R2 > 0.996) for all analytes within the range of 0.25–10 µg/mL. The applicability of the optimized SPE-MEKC-UV method was confirmed by employing it to quantify clinically relevant BAs in real urine samples from pediatric neuroblastoma (NBL) patients.
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Luo P, Peng J, Peng H, Zhang Z, Chen J, Fan K, Wang X. Preparation of three regioisomeric ionic liquid stationary phases and investigation of their retention behavior. J Chromatogr A 2023; 1689:463773. [PMID: 36628808 DOI: 10.1016/j.chroma.2023.463773] [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: 11/10/2022] [Revised: 01/01/2023] [Accepted: 01/02/2023] [Indexed: 01/05/2023]
Abstract
The structural properties of ionic liquid stationary phases have a considerable effect on their separation selectivity. However, the difference of the chromatographic retention behavior of different regioisomeric ionic liquid stationary phases has rarely been investigated. In this study, three regioisomeric ionic liquid silane reagents were prepared by photoinitiated ene-click chemistry and bonded to silica by one-pot method to fabricate three new stationary phases (Sil-C2Im-C8, Sil-C6Im-C4, and Sil-C9Im-C1). All three stationary phases showed promising retention repeatability and efficiency. The retention behavior of the three stationary phases was investigated under various chromatographic conditions. The retention mechanism was further investigated by the linear energy solvation relationship and Van't Hoff plots. The stationary phases exhibited mixed-mode retention mechanisms. The π-π, hydrogen bonding, ion-exchange, and hydrophilic interactions with analytes were the weakest when the imidazole ions were embedded in the innermost part of the alkyl chains, while the interactions were the strongest when the imidazole ions were embedded in the middle of the alkyl chains. The three stationary phases provided great but different separation performances towards nucleosides, nucleobases, aromatic acids, alkyl benzenes, and polycyclic aromatic hydrocarbons due to the influence of imidazole ion position.
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Affiliation(s)
- Pan Luo
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
| | - Jingdong Peng
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China.
| | - Huanjun Peng
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
| | - Zilong Zhang
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
| | - Jun Chen
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
| | - Kun Fan
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
| | - Xiang Wang
- School of Chemistry and Chemical Engieering, Southwest University, Chongqing 400715, China
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Treder N, Roszkowska A, Olędzka I, Bączek T, Plenis A. Effects of Fe 3O 4 Magnetic Nanoparticle Functionalization with Ionic Liquids and a Double-Chained Surfactant on the Pretreatment of Plasma Samples during Drug Extraction. Anal Chem 2022; 94:16587-16595. [DOI: 10.1021/acs.analchem.2c01985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Natalia Treder
- Department of Analytical Chemistry, Medical University of Gdańsk, Hallera 107 Street, 80-416 Gdańsk, Poland
| | - Anna Roszkowska
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107 Street, 80-416 Gdańsk, Poland
| | - Ilona Olędzka
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107 Street, 80-416 Gdańsk, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107 Street, 80-416 Gdańsk, Poland
| | - Alina Plenis
- Department of Analytical Chemistry, Medical University of Gdańsk, Hallera 107 Street, 80-416 Gdańsk, Poland
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Liu C, Chen B, Shi W, Huang W, Qian H. Ionic Liquids for Enhanced Drug Delivery: Recent Progress and Prevailing Challenges. Mol Pharm 2022; 19:1033-1046. [PMID: 35274963 DOI: 10.1021/acs.molpharmaceut.1c00960] [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] [Indexed: 12/26/2022]
Abstract
Ionic liquids (ILs) are a class of nonmolecular compounds composed only of ions. Compared with traditional organic solvents, ILs have the advantages of wide chemical space, diverse and flexible structures, negligible vapor pressure, and high thermal stability, which make them widely used in many fields of modern science, such as chemical synthesis and catalytic decomposition, electrochemistry, biomass conversion, and biotransformation biotechnology. Because of their special characteristics, ILs have been favored in the pharmaceutical field recently, especially for the development of efficient drug delivery systems. So far, ILs have been successfully designed to promote the dissolution of poorly soluble drugs and the destruction of physiological barriers, such as the tight junction between the stratum corneum and the intestinal epithelium. In addition, ILs can also be combined with other drug strategies to stabilize the structure of small molecules. This Review mainly introduces the application of ILs in drug delivery, emphasizes the potential mechanism of ILs, and presents the key research directions of ILs in the future.
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Affiliation(s)
- Chunxia Liu
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
| | - Bin Chen
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
| | - Wei Shi
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
| | - Wenlong Huang
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
| | - Hai Qian
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China
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Online preconcentration methodology that realizes over 2000-fold enhancement by integrating the free liquid membrane into electrokinetic supercharging in capillary electrophoresis for the determination of trace anionic analytes in complex samples. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chronopotentiometric Evaluation of Ionization Degree and Dissociation Constant of Imidazolium-Based Ionic Liquid [C6Meim][NTf2] in Polymeric Plasticized Membranes. MEMBRANES 2022; 12:membranes12020130. [PMID: 35207052 PMCID: PMC8877390 DOI: 10.3390/membranes12020130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/17/2022]
Abstract
Ionic liquids (ILs) have a wide variety of applications in modern electrochemistry due to their unique electrolytic properties. In particular, they are promising candidates as dopants for polymeric membranes in potentiometric sensors and liquid-junction free reference electrodes. However, the effective use of ILs requires a comprehensive understanding of their electrolytic behavior in the polymeric phase. We report here the exploration of the electrolytic and diffusion properties of IL 1-hexyl-3-methyl-1H-imidazol-3-ium bis[(trifluoromethyl)sulfonyl]amide ([C6Meim][NTf2]) in a poly(vinyl chloride) matrix. Chronopotentiometry is utilized to determine the concentration of charge carriers, ionic diffusion coefficients and apparent dissociation constant of [C6Meim][NTf2] in PVC membranes plasticized with a mixture of [C6Meim][NTf2] and bis(2-ethylhexyl) sebacate (DOS) over a wide range of IL concentrations. The diffusion properties of [C6Meim][NTf2] are confirmed by NMR-diffusometry. The non-monotonic electrolytic behavior of the IL in PVC-DOS matrix is described for the first time. A maximum ionization degree and diffusion coefficient is observed at 30 wt.% of IL in the plasticizing mixture. Thus, it is shown that by varying the flexible parameter of the IL to plasticizer ratio in the polymeric phase one can tune the electrolytic and transport properties of sensing PVC membranes.
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Treder N, Olędzka I, Roszkowska A, Bączek T, Plenis A. Control of retention mechanisms on an octadecyl-bonded silica column using ionic liquid-based mobile phase in analysis of cytostatic drugs by liquid chromatography. J Chromatogr A 2021; 1651:462257. [PMID: 34090057 DOI: 10.1016/j.chroma.2021.462257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 11/20/2022]
Abstract
This study assesses the potential of using ionic liquids (ILs) as mobile phase additives to control the retention mechanism of four cytostatic drugs: doxorubicin hydrochloride (DOX), epirubicin hydrochloride (EPI), daunorubicin hydrochloride (DAU) and idarubicin hydrochloride (IDA). Chromatographic separations were performed on a C18 analytical column (Discovery C18 150 × 4.6 mm, 5 µm) using six IL anions and four methyl-substituted IL cations with different alkyl chain lengths (alone or with the additional methyl group on the aromatic ring), or with an allyl group added as a cationic substituent. Thus, a total of 17 different ILs were assessed. The aqueous formic acid solution and phosphate buffer were used to compare how mobile phase composition affected the behavior of the analyzed cytostatic agents in the presence of ILs. In addition, the impacts of IL concentration, phosphate buffer concentration, and phosphate buffer pH on the final results were also considered. The ability to change analyte retention without negatively impacting peak shape or analytical efficiency was also controlled via the tailing factor and number of theoretical plates. Based on the results, the tested ILs were classified as either effective or ineffective mobile phase additives for separation of anthracyclines and identification by LC-FL technique.
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Affiliation(s)
- Natalia Treder
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, Gdańsk 80-416, Poland
| | - Ilona Olędzka
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, Gdańsk 80-416, Poland
| | - Anna Roszkowska
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, Gdańsk 80-416, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, Gdańsk 80-416, Poland
| | - Alina Plenis
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, Gdańsk 80-416, Poland.
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David V, Moldoveanu SC, Galaon T. Derivatization procedures and their analytical performances for HPLC determination in bioanalysis. Biomed Chromatogr 2020; 35:e5008. [PMID: 33084080 DOI: 10.1002/bmc.5008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 02/06/2023]
Abstract
Derivatization, or chemical structure modification, is often used in bioanalysis performed by liquid chromatography technique in order to enhance detectability or to improve the chromatographic performance for the target analytes. The derivatization process is discussed according to the analytical procedure used to achieve the reaction between the reagent and the target compounds (containing hydroxyl, thiol, amino, carbonyl and carboxyl as the main functional groups involved in derivatization). Important procedures for derivatization used in bioanalysis are in situ or based on extraction processes (liquid-liquid, solid-phase and related techniques) applied to the biomatrix. In the review, chiral, isotope-labeling, hydrophobicity-tailored and post-column derivatizations are also included, based on representative publications in the literature during the last two decades. Examples of derivatization reagents and brief reaction conditions are included, together with some bioanalytical applications and performances (chromatographic conditions, detection limit, stability and sample biomatrix).
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Affiliation(s)
- Victor David
- Faculty of Chemistry, Department of Analytical Chemistry, University of Bucharest, Bucharest, Romania
| | | | - Toma Galaon
- National Research and Development Institute for Industrial Ecology - ECOIND, Bucharest-6, Romania
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Special Issue "Pharmaceutical Residues in the Environment". Molecules 2020; 25:molecules25122941. [PMID: 32604747 PMCID: PMC7356860 DOI: 10.3390/molecules25122941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 11/17/2022] Open
Abstract
Pharmaceuticals, due to their pseudo-persistence and biological activity as well as their extensive use in human and veterinary medicine, are a class of environmental contaminants that is of emerging concern [...].
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Sowińska A, Maciejewska M, Guo L, Delebecq E. Effect of SILPs on the Vulcanization and Properties of Ethylene-Propylene-Diene Elastomer. Polymers (Basel) 2020; 12:polym12061220. [PMID: 32471137 PMCID: PMC7361795 DOI: 10.3390/polym12061220] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 12/15/2022] Open
Abstract
Ionic liquids (ILs) are increasingly used in elastomer technology due to unique physico-chemical properties, which are stable at the temperature of preparation and during processing of rubber compounds. The latest IL application concept is supported ionic liquid-phase (SILP) materials, where an IL film is immobilized on the solid phase. The main aim of this work was studying the influence of IL immobilized on the surface of solid supports, such as silica and carbon black, on the vulcanization process, mechanical properties, and thermal behavior of ethylene–propylene–diene (EPDM) elastomer. Application of the SILP materials enabled the control of EPDM vulcanization without deterioration of the crosslink density, damping properties, thermal stability, and resistance of the vulcanizates to thermo-oxidative aging. Slight improvements in the tensile strength and hardness of the vulcanizates were observed.
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Affiliation(s)
- Anna Sowińska
- Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego Street 12/16, 90-924 Lodz, Poland;
- Correspondence:
| | - Magdalena Maciejewska
- Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego Street 12/16, 90-924 Lodz, Poland;
| | - Laina Guo
- Hutchinson S.A-Research & Innovation Center, Rue Gustave Nourry BP31, 45120 Châlette sur Loing, France; (L.G.); (E.D.)
| | - Etienne Delebecq
- Hutchinson S.A-Research & Innovation Center, Rue Gustave Nourry BP31, 45120 Châlette sur Loing, France; (L.G.); (E.D.)
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