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Liu P, Shui X, Shi M, Kang M, Liu Y, Yang X, Zhang G. The comparative study of two new Schiff bases derived from 5-(thiophene-2-yl)isoxazole as "Off-On-Off" fluorescence sensors for the sequential detection of Ga 3+ and Fe 3+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124247. [PMID: 38599023 DOI: 10.1016/j.saa.2024.124247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 03/22/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
Two new Schiff bases, TIC ((E)-N'-(2-hydroxybenzylidene)-5-(thiophene-2-yl)isoxazole-3-carbohydrazide) and TIE ((E)-N'-(3-ethoxy-2-hydroxybenzylidene)-5-(thiophene-2-yl)isoxazole-3-carbohydrazide), have been designed and synthesized as chemosensors for distinct recognition of Ga3+ and Fe3+ ions. TIE demonstrated a prominent "turn on" response characterized by clear distinguished fluorescence when coordination with Ga3+ ions in the DMSO/H2O buffer solution. In comparison, TIC also showed "turn on" response of blue fluorescence which was more selective and sensitive than that of TIE due to the steric hindrance of ethoxy group of TIE. The newly formed complexes TIC-Ga3+ and TIE-Ga3+ may act as selective "turn-off" fluorescent probes towards Fe3+ ions. Limits of detection of TIC and TIE towards Ga3+ ions were 7.8809 × 10-9 M and 2.6277 × 10-8 M, respectively. Limits of detection of TIC-Ga3+ and TIE-Ga3+ towards Fe3+ ions were 8.6562 × 10-9 M and 3.3764 × 10-7 M, respectively. The molar ratio of the complex between the sensor and Ga3+ or Fe3+ ions were all 1:2 determined through Job's Plot, mass spectrometry, and theoretical calculations. Both sensors were utilized for the determination of target ions in environment water samples, and the portable paper sensors for detecting Ga3+ ions have been successfully developed.
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Affiliation(s)
- Peng Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiaoxing Shui
- Henan Sanmenxia Aoke Chemical Industry Co. Ltd., Sanmenxia 472000, China.
| | - Manman Shi
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Mingyi Kang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yuanying Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiaofeng Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Guangyou Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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Wu Q, Lv J, Xie F, Li S. Quantification of oxaliplatin- and ioversol-related compounds in pharmaceutical formulations using novel HPLC-ICP-MS methods. J Pharm Biomed Anal 2024; 242:116026. [PMID: 38367519 DOI: 10.1016/j.jpba.2024.116026] [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: 12/14/2023] [Revised: 02/04/2024] [Accepted: 02/08/2024] [Indexed: 02/19/2024]
Abstract
PURPOSE Accurate quantifying of drug-related compounds in medicines is vital for safety. Commonly used structure-dependent methods rely on analytical standards. High-performance liquid chromatography coupled with inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) offers a promising solution, being structure-independent and not requiring standards. In this study, we aim to develop HPLC-ICP-MS methods for the determination of related compounds in oxaliplatin and ioversol injections. RESULTS The target analytes were eluted on an XSelect HSS T3 column (2.1 ×50 mm, 5 µm). Specifically, oxaliplatin injection was eluted isocracially for 3.5 min, and ioversol injection was eluted gradient with a total chromatographic run time of 12 min. The measurements to determine dihydroxy oxaliplatin-Pt(IV) and two related compounds of ioversol were performed by monitoring at m/z for 195Pt and 127I, respectively. The calibration curves were established over the range of 0.05-1 μM for Pt and 0.3-15 μM for I with the correlation coefficients greater than 0.999. The limits of quantification were 0.004 μM for dihydroxy oxaliplatin-Pt(IV), 0.022 μM for ioversol related compound A and 0.026 μM for ioversol related compound B. The accuracy (recovery between 93-105%) and precision (repeatability ≤ 6.1% RSD) were fit-for-purpose for dihydroxy oxaliplatin-Pt(IV), and the accuracy (recovery between 95-107%) and precision (repeatability ≤ 3.9% RSD) were also fit-for-purpose for both ioversol related compound A and ioversol related compound B. CONCLUSION The quantitation accuracy of HPLC-ICP-MS closely matched that of the standard HPLC-UV approach. HPLC-ICP-MS can be used as a complementary analytical technique for quantitative determination of drug-related compounds.
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Affiliation(s)
- Qiping Wu
- Division of Biopharmaceutics and Pharmacokinetics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Jianmei Lv
- Division of Biopharmaceutics and Pharmacokinetics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Feifan Xie
- Division of Biopharmaceutics and Pharmacokinetics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Sanwang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, China; Institute of Clinical Pharmacy, Central South University, Changsha 410011, China.
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Redeker FA, O’Malley K, McMahon WP, Jorabchi K. Solution Cathode Glow Discharge Coupled to Atmospheric Pressure Chemical Ionization for Elemental Detection of S and P in Organic Compounds. SPECTROCHIMICA ACTA. PART B, ATOMIC SPECTROSCOPY 2024; 212:106858. [PMID: 38292419 PMCID: PMC10824527 DOI: 10.1016/j.sab.2024.106858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
We report a post-plasma chemical ionization approach to evaluate solution cathode glow discharge (SCGD) for S and P elemental analysis. Here, the SCGD serves as a reactor to produce chemical vapors for S and P from organic compounds containing these elements, while a corona discharge operated in negative mode is used to ionize the products. The approach creates long-lived ions in atmospheric pressure, enabling direct investigation of chemical vapor products via mass spectrometric and ion mobility separations. The investigations indicate that SCGD converts S and P to H2SO4 and H3PO4, respectively. These species are then ionized as HSO4HNO3 - and H3PO4NO3HNO3- via reactions with NO3HNO3- produced by corona discharge. The response factors for P among several small molecules varies within 10% of the average response from the compounds, suggesting a reasonable species-independent characteristic. The response factors for S show larger variations among compounds, indicating a higher dependence of chemical vapor generation efficiency on analytes' chemical structures. Detection limits of 15 and 29 ng/mL are achieved for P and S detection, respectively. These figures are limited by background equivalent concentrations and low ion flux in the utilized ion mobility-time of flight mass spectrometer, indicating potential for significant improvements. In particular, the specificity of clustering for S and P-containing ions produced in this approach suggest facile analysis of S and P using quadrupole-based mass spectrometers for improved analytical performance.
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Affiliation(s)
- Frenio A. Redeker
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
| | - Kelsey O’Malley
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
| | | | - Kaveh Jorabchi
- Department of Chemistry, Georgetown University, 37 and O streets, NW, Washington, DC 20057, USA
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4
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Suvela R, Niemelä M, Perämäki P. Determination of Ethyl Xanthate in Aqueous Solution by High Performance Liquid Chromatography–Inductively Coupled Plasma–Tandem Mass Spectrometry and Spectrophotometry. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2031205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Ronja Suvela
- Research Unit of Sustainable Chemistry, University of Oulu, Oulu, Finland
| | - Matti Niemelä
- Research Unit of Sustainable Chemistry, University of Oulu, Oulu, Finland
| | - Paavo Perämäki
- Research Unit of Sustainable Chemistry, University of Oulu, Oulu, Finland
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5
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Chen J, Peng H, Zhang Z, Zhang Z, Ni R, Chen Y, Chen P, Peng J. Facile fabrication of silica@covalent organic polymers core-shell composites as the mixed-mode stationary phase for hydrophilic interaction/reversed-phase/ion-exchange chromatography. Talanta 2021; 233:122524. [PMID: 34215027 DOI: 10.1016/j.talanta.2021.122524] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 12/17/2022]
Abstract
Covalent organic polymers (COPs) are a promising class of cross-linked polymeric networks that attracted extensive attention in separation and analysis fields. Exploring facile and convenient strategy to prepare COPs-based mixed-mode stationary phases for high performance liquid chromatography (HPLC) has seriously lagged and has never been reported. Herein, we describe a facile in-situ grow strategy for fabrication of silica@COPs core-shell composites (SiO2@TpBD-(OH)2) as a novel mixed-mode stationary phase for HPLC. Owing to the co-existing of abundant hydroxyl, carbonyl, imine, cyclohexyl groups, and benzene rings in the skeleton of COPs shell, the developed mixed-mode stationary phase exhibits hydrophilic interaction liquid chromatography (HILIC)/reversed-phase liquid chromatography (RPLC)/ion-exchange chromatography (IEX) retention mechanisms. The content of acetonitrile, pH value, and salt concentration in the mobile phase were investigated on SiO2@TpBD-(OH)2 packed column. In comparison to conventional single-mode columns, the SiO2@TpBD-(OH)2 column showed flexible selectivity, enhanced separation performance, and superior resolution for benzene homologues, polycyclic aromatic hydrocarbons, nucleosides and bases, and acidic organic compounds. The column efficiency of p-nitrobenzoic acid was up to 54440 plates per meter. The packed column also possessed outstanding chromatographic repeatability for six nucleosides and bases with the RSDs of 0.07-0.23%, 0.58-1.77%, and 0.31-1.23% for retention time, peak area, and peak height, respectively. Besides, the SiO2@TpBD-(OH)2 column offered baseline separation of multiple organic pollutants in lake water, which verified its great potential in real sample analysis. Overall, the silica@COPs core-shell composites not only provide a new candidate of mixed-mode stationary phases, but also extend the potential application of COPs in separation science.
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Affiliation(s)
- Jun Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637002, China
| | - Huanjun Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zilong Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zhongying Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ranxi Ni
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yaping Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Piao Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jingdong Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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6
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Selcuk O, Demir Y, Erkmen C, Yıldırım S, Uslu B. Analytical Methods for Determination of Antiviral Drugs in Different Matrices: Recent Advances and Trends. Crit Rev Anal Chem 2021; 52:1662-1693. [PMID: 33983841 DOI: 10.1080/10408347.2021.1908111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Viruses are the main pathogenic substances that cause severe diseases in humans and other living things. They are among the most common microorganisms, and consequently, antiviral drugs have emerged to prevent and treat viral infections. Antiviral drugs are an essential drug group considering their prescription and consumption rates for different diseases and indications. Therefore, it is crucial to develop accurate and precise analytical methods to detect antiviral drugs in various matrices. Chromatographic techniques are used frequently for the quantification purpose since they allow simultaneous determination of antivirals. Electrochemical methods have also gained importance since the analysis can be performed quickly without the need for pretreatment. Spectrophotometric and spectrofluorimetric methods are used because they are simple, inexpensive, and less time-consuming methods. The purpose of this review is to present an overview of the analysis of currently used antiviral drugs from 2010 to 2021. Since studies on antiviral drugs are numerous, selected publications were reviewed in this article. The analysis of antiviral drugs was divided into three main groups: chromatographic, spectrometric, and electrochemical methods which were applied to different matrices, including pharmaceutical, biological, and environmental samples.
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Affiliation(s)
- Ozge Selcuk
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Yeliz Demir
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Cem Erkmen
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Sercan Yıldırım
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - Bengi Uslu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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7
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Zhang J, Yang L, Wang Y, Cao T, Sun Z, Xu J, Liu Y, Chen G. Ebselen-Agents for Sensing, Imaging and Labeling: Facile and Full-Featured Application in Biochemical Analysis. ACS APPLIED BIO MATERIALS 2021; 4:2217-2230. [PMID: 35014346 DOI: 10.1021/acsabm.0c01561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Phenyl-1,2-benzoselenazol-3(2H)-one (ebselen) is a classical mimic of glutathione peroxidase (GPx). Thioredoxin interaction endows ebselen attractive biological functions, such as antioxidation and anti-infection, as well as versatile therapeutic usage. Accordingly, application of ebselen analogues in biosensing, chemical labeling, imaging analysis, disease pathology, drug development, clinical treatment, etc. have been widely developed, in which mercaptans, reactive oxygen species, reactive sulfur species, peptides, and proteins were involved. Herein, focusing on the application of ebselen-agents in biochemistry, we have made a systematic summary and comprehensive review. First, we summarized both the classical and the innovative methods for preparing ebselen-agents to present the synthetic strategies. Then we discussed the full functional applicability of ebselen analogues in three fields of biochemical analysis including the fluorescence sensing and bioimaging, derivatization for high throughput fluorescence analysis, and the labeling gents for proteomics. Finally, we discussed the current challenges and perspectives for ebselen-agents as analytical tools in biological research. By presenting the multifunctional applicability of ebselen, we hope this review could appeal researchers to design the ebselen-related biomaterials for biochemical analysis.
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Affiliation(s)
- Jiawei Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China
| | - Lei Yang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China
| | - Yuxin Wang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China
| | - Tianyi Cao
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China
| | - Zhiwei Sun
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China
| | - Jie Xu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yuxia Liu
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Guang Chen
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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8
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D’Amato R, Regni L, Falcinelli B, Mattioli S, Benincasa P, Dal Bosco A, Pacheco P, Proietti P, Troni E, Santi C, Businelli D. Current Knowledge on Selenium Biofortification to Improve the Nutraceutical Profile of Food: A Comprehensive Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:4075-4097. [PMID: 32181658 PMCID: PMC7997367 DOI: 10.1021/acs.jafc.0c00172] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/12/2020] [Accepted: 03/17/2020] [Indexed: 05/05/2023]
Abstract
Selenium (Se) is an important micronutrient for living organisms, since it is involved in several physiological and metabolic processes. Se intake in humans is often low and very seldom excessive, and its bioavailability depends also on its chemical form, with organic Se as the most available after ingestion. The main dietary source of Se for humans is represented by plants, since many species are able to metabolize and accumulate organic Se in edible parts to be consumed directly (leaves, flowers, fruits, seeds, and sprouts) or after processing (oil, wine, etc.). Countless studies have recently investigated the Se biofortification of plants to produce Se-enriched foods and elicit the production of secondary metabolites, which may benefit human health when incorporated into the diet. Moreover, feeding animals Se-rich diets may provide Se-enriched meat. This work reviews the most recent literature on the nutraceutical profile of Se-enriched foods from plant and animal sources.
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Affiliation(s)
- Roberto D’Amato
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Luca Regni
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Beatrice Falcinelli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Simona Mattioli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Paolo Benincasa
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Alessandro Dal Bosco
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Pablo Pacheco
- Instituto
de Química de San Luis, INQUISAL, Centro Científico-Tecnológico
de San Luis (CCT-San Luis), Consejo Nacional
de Investigaciones Científicas − Universidad Nacional
de San Luis, Chacabuco y Pedernera, Ciudad de San Luis 5700, Argentina
| | - Primo Proietti
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Elisabetta Troni
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
| | - Claudio Santi
- Department
of Pharmaceutical Sciences, University of
Perugia, Perugia 06123, Italy
| | - Daniela Businelli
- Department
of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia 06123, Italy
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9
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Solovyev N, Ala A, Schilsky M, Mills C, Willis K, Harrington CF. Biomedical copper speciation in relation to Wilson’s disease using strong anion exchange chromatography coupled to triple quadrupole inductively coupled plasma mass spectrometry. Anal Chim Acta 2020; 1098:27-36. [DOI: 10.1016/j.aca.2019.11.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/08/2019] [Accepted: 11/13/2019] [Indexed: 12/16/2022]
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10
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Bernardin M, Masle AL, Bessueille-Barbier F, Lienemann CP, Heinisch S. Comprehensive two-dimensional liquid chromatography with inductively coupled plasma mass spectrometry detection for the characterization of sulfur, vanadium and nickel compounds in petroleum products. J Chromatogr A 2019; 1611:460605. [PMID: 31662186 DOI: 10.1016/j.chroma.2019.460605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/30/2019] [Accepted: 10/06/2019] [Indexed: 12/16/2022]
Abstract
The petroleum industry is increasingly concerned with the conversion of vacuum residues as a consequence of decreased conventional crude oil availability. The compositional analysis of heavy oil products has become a key step in conversion processes, but the complexity of these oil matrices tends to increase with their boiling point. In this study, comprehensive two-dimensional liquid chromatography (LCxLC) coupled to inductively coupled mass spectrometry (ICP-MS/MS) is considered with a view to meet new requirements and to bring additional information regarding the species present in these matrices. In search for a high degree of orthogonality, two separation techniques involving two different retention mechanisms were evaluated: Size Exclusion Chromatography (SEC) and Reverse Phase Liquid Chromatography (RPLC). In SEC, the analytes are separated according to their molecular weight while according to their hydrophobicity in RPLC. The separation power of both individual separation techniques was first evaluated. Off-line and on-line LCxLC were compared on the basis of an optimization approach. It is shown that off-line SECxRPLC can provide, for the same analysis time of 150 min, a higher peak capacity (2600 vs 1700) than on-line RPLCxSEC while a similar dilution factor (close to 30) but also requires far fewer fractions to be analyzed (12 vs 400). Asphaltenes which constitute the heaviest fraction of crude oils (obtained from petroleum industry) were analyzed by the developed off-line SECxRPLC method. The resulting 2D-contour plots show that co-elutions could be removed leading, for the first time, to new information on high molecular weight species containing sulfur and vanadium.
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Affiliation(s)
- Marie Bernardin
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, 5 rue de la Doua, 69100 Villeurbanne, France; IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize France
| | - Agnès Le Masle
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize France
| | | | | | - Sabine Heinisch
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, 5 rue de la Doua, 69100 Villeurbanne, France.
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11
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Lesniewski JE, Zheng K, Lecchi P, Dain D, Jorabchi K. High-Sensitivity Elemental Mass Spectrometry of Fluorine by Ionization in Plasma Afterglow. Anal Chem 2019; 91:3773-3777. [PMID: 30801181 DOI: 10.1021/acs.analchem.8b05851] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fluorine elemental analysis using inductively coupled plasma mass spectrometry (ICPMS) is challenging because of low F ionization efficiency in the plasma and severe isobaric interferences. Notably, there is an increasing demand for ppb level fluorine measurements due to the rising importance of fluorinated compounds in pharmaceutical, environmental, and food analyses. Here, we report a new elemental ionization method where fluorinated analytes are introduced into an ICP to produce NaF followed by Na2F+ formation in the atmospheric-pressure plasma afterglow. The new method offers over 2 orders of magnitude improved sensitivities (180-500 cps/ppb versus 1.6-3.2 cps/ppb) for F detection. This approach also yields compound-independent F response for quantitation without compound-specific standards. Detection limits of ∼50 ppb F are attained using a single-quadrupole instrument without discrimination against isobaric interferences. Similar LODs are achievable only by isobaric interference reduction in ICPMS/MS. Importantly, the new approach offers facile interfacing to molecular MS instruments where LODs can be further improved via MS/MS and high-resolution MS techniques. The tolerance to matrix is demonstrated by quantitation of fluoride in infant formula, yielding recoveries of 86%-98% with repeatabilities of 3.5-6.3 RSD%.
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Affiliation(s)
- Joseph E Lesniewski
- Department of Chemistry , Georgetown University , Washington , District of Columbia 20057 , United States
| | - Kunyu Zheng
- Department of Chemistry , Georgetown University , Washington , District of Columbia 20057 , United States
| | - Paolo Lecchi
- DSM Nutritional Products , Columbia , Maryland 21045 , United States
| | - David Dain
- DSM Nutritional Products , Columbia , Maryland 21045 , United States
| | - Kaveh Jorabchi
- Department of Chemistry , Georgetown University , Washington , District of Columbia 20057 , United States
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12
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Saurina J, Sentellas S. Liquid chromatography coupled to mass spectrometry for metabolite profiling in the field of drug discovery. Expert Opin Drug Discov 2019; 14:469-483. [DOI: 10.1080/17460441.2019.1582638] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Javier Saurina
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Barcelona, Spain
| | - Sonia Sentellas
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Barcelona, Spain
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13
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Lajin B, Goessler W. Sulfur speciation by HPLC-ICPQQQMS in complex human biological samples: taurine and sulfate in human serum and urine. Anal Bioanal Chem 2018; 410:6787-6793. [PMID: 30062511 PMCID: PMC6132542 DOI: 10.1007/s00216-018-1251-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/20/2018] [Accepted: 07/06/2018] [Indexed: 01/19/2023]
Abstract
The advent of the triple quadrupole technology to the inductively coupled plasma mass spectrometry (ICPMS) technique has allowed a strong improvement in the accuracy and detection limits of ICPMS for non-metal elements such as sulfur by removing major polyatomic interferences. Up to now, there has been no report utilizing this development for sulfur speciation in complex human biological matrices. In the present report, we show the success of HPLC-ICPQQQMS for the simultaneous determination of two major sulfur metabolites, taurine and sulfate, in human urine and serum, by direct injection without the need for sample clean-up. The optimized chromatographic method was validated, tested for robustness, and applied for investigating the intra-individual variability in taurine urinary excretion in eight healthy volunteers over a period of 8 weeks. The limit of detection and limit of quantification for taurine determination was found to be 0.2 and 0.7 pmol, respectively. The concentrations found in the analyzed group of urine samples (n = 64) had a range, mean, and SD of 0.6-99, 20.4, and 23.2 μg mL-1 for taurine, and 115-1373, 616, and 259 μg mL-1 for sulfate. Taurine was found to exhibit a much higher intra-individual variability than sulfate. The developed method can be applied in large-scale epidemiological studies and clinical studies in order to establish the potential cardioprotective effects of taurine. Graphical abstract ᅟ.
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Affiliation(s)
- Bassam Lajin
- Institute of Chemistry - Analytical Chemistry for Health and Environment, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria.
| | - Walter Goessler
- Institute of Chemistry - Analytical Chemistry for Health and Environment, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
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Comparative evaluation of ICP sample introduction systems to be used in the metabolite profiling of chlorine-containing pharmaceuticals via HPLC-ICP-MS. J Pharm Biomed Anal 2018; 153:135-144. [DOI: 10.1016/j.jpba.2018.02.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/20/2022]
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