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Grasselli G, Arigò A, Palma P, Famiglini G, Cappiello A. Latest Developments in Direct and Non-Direct LC-MS Methods Based on Liquid Electron Ionization (LEI). Crit Rev Anal Chem 2024:1-18. [PMID: 39046707 DOI: 10.1080/10408347.2024.2381543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Mass spectrometry (MS) enables precise identification and quantification of molecules, particularly when combined with chromatography. The advent of atmospheric pressure ionization (API) techniques allowed the efficient coupling of liquid chromatography with MS (LC-MS), extending analyses to nonvolatile and thermolabile compounds. API techniques present limitations such as low informative capacity and reproducibility of mass spectra, increasing instrument complexity and costs. Other challenges include analyzing poorly polar molecules and matrix effects (ME), which negatively impact quantitative analyses, necessitating extensive sample purification or using expensive labeled standards. These limitations prompted the exploration of alternative solutions, leading to the development of the Liquid Electron Ionization (LEI) interface. The system has demonstrated excellent robustness and reproducibility. LEI has been employed to analyze various compounds, including pesticides, drugs of abuse, phenols, polycyclic aromatic hydrocarbons (PAHs), phthalates, and many others. Its versatility has been validated with single quadrupole, triple quadrupole, and QToF detectors, operating in electron ionization (EI) or chemical ionization (CI) modes and with both reverse phase liquid chromatography (RPLC) and normal phase liquid chromatography (NPLC). LEI has also been successfully integrated with the Microfluidic Open Interface (MOI), Membrane Introduction Mass Spectrometry (MIMS), and Microfluidic Water-Assisted Trap Focusing (M-WATF), broadening its application scope and consistently demonstrating promising results in terms of sensitivity and identification power. The most recent advancement is the development of Extractive-Liquid Sampling Electron Ionization-Mass Spectrometry (E-LEI-MS), a surface sampling and real-time analysis technique based on the LEI concept. This review article offers a comprehensive and up-to-date picture of the potential of LEI.
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Affiliation(s)
- Genny Grasselli
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Adriana Arigò
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Pierangela Palma
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Giorgio Famiglini
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Achille Cappiello
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
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Yamada K, Miyagawa A, Honma R, Nagatomo S, Nakatani K. Effect of Organic Solvent on the Mass Transfer Mechanism of Coumarin 102 in a Single Octadecylsilyl Silica Gel/Organic Solvent-Water System by Laser Trapping and Fluorescence Microspectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14303-14310. [PMID: 38958592 DOI: 10.1021/acs.langmuir.4c00878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Understanding mass transfer kinetics within individual porous particles is crucial for theoretically explaining the retention and elution behaviors in chromatography and drug delivery. Using laser trapping and fluorescence microspectroscopy, we investigated the diffusion mechanism of coumarin 102 (C102) into single octadecylsilyl particle in acetonitrile (ACN)/water, N,N-dimethylformamide (DMF)/water, and 1-butanol (BuOH)/water solutions. The intraparticle diffusion behavior of C102 was evaluated using the spherical diffusion equation, allowing us to determine the intraparticle diffusion coefficients (Dintra): (8-10) × 10-9 cm2 s-1 for ACN, (10-16) × 10-9 cm2 s-1 for DMF, and (4-6) × 10-9 cm2 s-1 for BuOH. The obtained Dintra values were further analyzed using a pore and surface diffusion model. Thus, we revealed that the diffusion mechanism of C102 differed depending on the organic solvent: surface diffusion for ACN and DMF and pore and surface diffusions for BuOH were observed. This difference is attributed to the formation of a concentrated liquid phase of ACN and DMF at the interface of the alkyl chain and the bulk solution in the pore.
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Affiliation(s)
- Kazuki Yamada
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Akihisa Miyagawa
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Ren Honma
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Shigenori Nagatomo
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Kiyoharu Nakatani
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Heart-cutting two-dimensional liquid chromatography combined with isotope ratio mass spectrometry for the determination of stable carbon isotope ratios of gluconic acid in honey. J Chromatogr A 2019; 1608:460421. [PMID: 31405574 DOI: 10.1016/j.chroma.2019.460421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 07/02/2019] [Accepted: 08/03/2019] [Indexed: 11/21/2022]
Abstract
Liquid chromatography/isotope ratio mass spectrometry (LC/IRMS) is used to analyze various types of samples, including foodstuffs, to determine their authenticity and trace their origin on the basis of their stable carbon isotope ratios (δ13C). However, multicomponent samples are difficult to analyze. For example, determining the δ13C values of the organic acids in honey is complicated by the presence of large amounts of carbohydrates. Herein, we present a heart-cutting two-dimensional LC/IRMS method for analysis of honey samples. In this method, the organic acids in the samples were first separated from the carbohydrates by a size-exclusion column, and then the organic acids were separated from each other by a reverse-phase column connected to the first column via a switching valve. By means of this method, the δ13C values for three organic acids in high-carbohydrate-content simulated honey samples could be determined with high accuracy and precision (≤0.3‰ and ≤0.1‰, respectively). In addition, the gluconic acid δ13C values for 25 honey samples were determined with high precision and found to range from -31.7 to -28.5‰ (mean: -30.0 ± 0.7‰). These values shed some light on the mechanism of gluconic acid production. Taken together, our results suggest that this two-dimensional LC method has the potential to be more effective than one-dimensional LC for use in isotopic research.
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Andersson M, Svensson K, Klintberg L, Hjort K. Microfluidic Control Board for High-Pressure Flow, Composition, and Relative Permittivity. Anal Chem 2018; 90:12601-12608. [DOI: 10.1021/acs.analchem.8b02758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Andersson
- Uppsala University, Centre of Natural Hazards and Disaster Science, CNDS, and Department of Engineering Sciences, Division of Microsystem Technology, Box 534, SE-75121 Uppsala, Sweden
| | - Karolina Svensson
- Uppsala University, Centre of Natural Hazards and Disaster Science, CNDS, and Department of Engineering Sciences, Division of Microsystem Technology, Box 534, SE-75121 Uppsala, Sweden
| | - Lena Klintberg
- Uppsala University, Centre of Natural Hazards and Disaster Science, CNDS, and Department of Engineering Sciences, Division of Microsystem Technology, Box 534, SE-75121 Uppsala, Sweden
| | - Klas Hjort
- Uppsala University, Centre of Natural Hazards and Disaster Science, CNDS, and Department of Engineering Sciences, Division of Microsystem Technology, Box 534, SE-75121 Uppsala, Sweden
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Single-pump heart-cutting two-dimensional liquid chromatography applied to the determination of fatty alcohol ethoxylates. J Chromatogr A 2014; 1361:108-16. [DOI: 10.1016/j.chroma.2014.07.092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 07/28/2014] [Accepted: 07/29/2014] [Indexed: 11/21/2022]
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Monticelli D, Laglera LM, Caprara S. Miniaturization in voltammetry: ultratrace element analysis and speciation with twenty-fold sample size reduction. Talanta 2014; 128:273-7. [PMID: 25059160 DOI: 10.1016/j.talanta.2014.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/08/2014] [Accepted: 04/15/2014] [Indexed: 10/25/2022]
Abstract
Voltammetric techniques have emerged as powerful methods for the determination and speciation of trace and ultratrace elements without any preconcentration in several research fields. Nevertheless, large sample volumes are typically required (10 mL), which strongly limits their application and/or the precision of the results. In this work, we report a 20-fold reduction in sample size for trace and ultratrace elemental determination and speciation by conventional voltammetric instrumentation, introducing the lowest amount of sample (0.5 mL) in which ultratrace detection has been performed up to now. This goal was achieved by a careful design of a new sample holder. Reliable, validated results were obtained for the determination of trace/ultratrace elements in rainwater (Cd, Co, Cu, Ni, Pb) and seawater (Cu). Moreover, copper speciation in seawater samples was consistently determined by competitive ligand equilibration-cathodic stripping voltammetry (CLE-CSV). The proposed apparatus showed several advantages: (1) 20-fold reduction in sample volume (the sample size is lowered from 120 to 6 mL for the CLE-CSV procedure); (2) decrease in analysis time due to the reduction in purging time up to 2.5 fold; (3) 20-fold drop in reagent consumption. Moreover, the analytical performances were not affected: similar detection capabilities, precision and accuracy were obtained. Application to sample of limited availability (e.g. porewaters, snow, rainwater, open ocean water, biological samples) and to the description of high resolution temporal trends may be easily foreseen.
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Affiliation(s)
- D Monticelli
- Departamento de Química, Universidad de las Islas Baleares, Cra. de Valldemossa, km 7.5, 07122 Palma, Balearic Islands, Spain; Dipartimento di Scienza e Alta tecnologia, Università degli Studi dell'Insubria, via Valleggio 11, 22100 Como, Italy.
| | - L M Laglera
- Departamento de Química, Universidad de las Islas Baleares, Cra. de Valldemossa, km 7.5, 07122 Palma, Balearic Islands, Spain
| | - S Caprara
- Dipartimento di Scienza e Alta tecnologia, Università degli Studi dell'Insubria, via Valleggio 11, 22100 Como, Italy
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Yamamoto E, Niijima J, Asakawa N. Selective determination of potential impurities in an active pharmaceutical ingredient using HPLC-SPE-HPLC. J Pharm Biomed Anal 2013; 84:41-7. [DOI: 10.1016/j.jpba.2013.05.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 05/21/2013] [Accepted: 05/22/2013] [Indexed: 11/26/2022]
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Gumustas M, Kurbanoglu S, Uslu B, Ozkan SA. UPLC versus HPLC on Drug Analysis: Advantageous, Applications and Their Validation Parameters. Chromatographia 2013. [DOI: 10.1007/s10337-013-2477-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Metal Species in Biology: Bottom-Up and Top-Down LC Approaches in Applied Toxicological Research. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/801840] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Since the inception of liquid chromatography (LC) more than 100 years ago this separation technique has been developed into a powerful analytical tool that is frequently applied in life science research. To this end, unique insights into the interaction of metal species (throughout this manuscript “metal species” refers to “toxic metals, metalloid compounds, and metal-based drugs” and “toxic metals” to “toxic metals and metalloid compounds”) with endogenous ligands can be obtained by using LC approaches that involve their hyphenation with inductively coupled plasma-based element specific detectors. This review aims to provide a synopsis of the different LC approaches which may be employed to advance our understanding of these interactions either in a “bottom-up” or a “top-down” manner. In the “bottom-up” LC-configuration, endogenous ligands are introduced into a physiologically relevant mobile phase buffer, and the metal species of interest is injected. Subsequent “interrogation” of the on-column formed complex(es) by employing a suitable separation mechanism (e.g., size exclusion chromatography or reversed-phase LC) while changing the ligand concentration(s), the column temperature or the pH can provide valuable insight into the formation of complexes under near physiological conditions. This approach allows to establish the relative stability and hydrophobicity of metal-ligand complexes as well as the dynamic coordination of a metal species (injected) to two ligands (dissolved in the mobile phase). Conversely, the “top-down” analysis of a biological fluid (e.g., blood plasma) by LC (e.g., using size exclusion chromatography) can be used to determine the size distribution of endogenous metalloproteins which are collectively referred to as the “metalloproteome”. This approach can provide unique insight into the metabolism and the plasma protein binding of metal species, and can simultaneously visualize the dose-dependent perturbation of the metalloproteome by a particular metal species. The concerted application of these LC approaches is destined to provide new insight into biochemical processes which represent an important starting point to advance human health in the 21st century.
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Cheregi M, Albu F, Udrescu Ş, Răducanu N, Medvedovici A. Greener bioanalytical approach for LC/MS–MS assay of enalapril and enalaprilat in human plasma with total replacement of acetonitrile throughout all analytical stages. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 927:124-32. [DOI: 10.1016/j.jchromb.2012.11.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 11/13/2012] [Accepted: 11/17/2012] [Indexed: 10/27/2022]
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Gama MR, Collins CH, Bottoli CBG. Nano-Liquid Chromatography in Pharmaceutical and Biomedical Research. J Chromatogr Sci 2013; 51:694-703. [DOI: 10.1093/chromsci/bmt023] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Cielecka-Piontek J, Zalewski P, Jelińska A, Garbacki P. UHPLC: The Greening Face of Liquid Chromatography. Chromatographia 2013; 76:1429-1437. [PMID: 24273332 PMCID: PMC3825615 DOI: 10.1007/s10337-013-2434-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Revised: 12/22/2012] [Accepted: 02/14/2013] [Indexed: 01/05/2023]
Abstract
Pharmaceutical analysis based on chromatographic separation is an important part of studies aimed at developing routine quality analysis of drugs. High-performance liquid chromatography (HPLC) is one of the main analytical techniques recommended for drug analysis. Although it meets many criteria vital for analysis, it is time-consuming and uses a relatively high amount of organic solvents compared to other analytical techniques. Recently, Ultra-high-performance liquid chromatography (UHPLC) has been frequently proposed as an alternative to HPLC, which means introducing an environment-friendly approach to drug analysis achieved by reducing the consumption of solvents. It also offers greater chromatographic resolution and higher sensitivity as well as requiring less time due to faster analysis. This review focuses on the basics of UHPLC, compares that technique with HPLC and discusses the possibilities of applying UHPLC for the analysis of different pharmaceuticals and biopharmaceuticals.
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Affiliation(s)
- Judyta Cielecka-Piontek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
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Tache F, Udrescu S, Albu F, Micăle F, Medvedovici A. Greening pharmaceutical applications of liquid chromatography through using propylene carbonate–ethanol mixtures instead of acetonitrile as organic modifier in the mobile phases. J Pharm Biomed Anal 2013; 75:230-8. [DOI: 10.1016/j.jpba.2012.11.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 11/27/2012] [Accepted: 11/28/2012] [Indexed: 10/27/2022]
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