1
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Gong X, Chen W, Zhang K, Li T, Song Q. Serially coupled column liquid chromatography: An alternative separation tool. J Chromatogr A 2023; 1706:464278. [PMID: 37572536 DOI: 10.1016/j.chroma.2023.464278] [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: 05/30/2023] [Revised: 07/20/2023] [Accepted: 08/02/2023] [Indexed: 08/14/2023]
Abstract
Despite the rapid development of liquid chromatography (LC) in recent decades, it remains a challenge to achieve the desired chromatographic separation of complex matrices using a single column. Multi-column LC techniques, particularly serially coupled column LC (SCC-LC), have emerged as a promising solution to overcome this challenge. While more attention has been focused on heart-cutting or comprehensive two-dimensional LC, reviews specifically focusing on SCC-LC, which offers advantages in terms of precision and facile instrumentation, are scarce. Here, our concerns are devoted to the progress summary regarding the instrumentation and applications of SCC-LC. Emphasis is placed on column selection aiming to enlarge peak capacity, selectivity, or both through the optimization of combination types (e.g. RPLC-RPLC, -RPLC-HILIC, and achiral-chiral LC), connection devices (e.g. zero dead volume connector, tubing, and T-type connector), elution program (i.e. isocratic or gradient) and detectors (e.g. mass spectrometer, ultraviolet detector, and fluorescence detector). The application of SCC-LC in pharmaceutical, biological, environmental, and food fields is also reviewed, and future perspectives and potential directions for SCC-LC are discussed. We envision that the review can give meaningful information to analytical scientists when facing heavy chromatographic separation tasks for complicated matrices.
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Affiliation(s)
- Xingcheng Gong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Wei Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ke Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ting Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Qingqing Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
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2
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Aristizabal-Henao JJ, Stark KD. Macrolipidomic Profiling of Vegetable Oils: The Analysis of Sunflower Oils with Different Oleic Acid Content. Methods Mol Biol 2022; 2396:161-173. [PMID: 34786682 DOI: 10.1007/978-1-0716-1822-6_12] [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] [Indexed: 06/13/2023]
Abstract
Conventional breeding techniques and genetic modifications have made it possible to alter the composition of vegetable oils. In recent years, the field of lipidomics has rapidly evolved due to technological developments in mass spectrometry. "Macrolipidomics" is an approach dedicated to detailed characterization of the most abundant lipids of a sample and has the potential to be useful for the profiling of commercial seed oils. Seed oils are composed largely of triacylglycerols (TAG) with various fatty acyls that can result in a number of isobaric and isomeric TAG species in each sample. Comprehensive methods for fatty acyl TAG characterization are still scarce. In this chapter, we describe the steps required to process and analyze different sunflower oils with altered oleic acid content to generate quantitative data for discrete fatty acyl species of TAG molecules. We utilized a dual ultra-high-performance liquid chromatography (UHPLC) serial coupling setup and untargeted tandem mass spectrometry (MS/MS) to quantitate 23 common TAG species in three sunflower oils containing 40% (low), 60% (mid), and 85% (high) oleic acid by weight.
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Affiliation(s)
| | - Ken D Stark
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada.
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3
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Beschnitt A, Schwikowski M, Hoffmann T. Towards comprehensive non-target screening using heart-cut two-dimensional liquid chromatography for the analysis of organic atmospheric tracers in ice cores. J Chromatogr A 2021; 1661:462706. [PMID: 34864235 DOI: 10.1016/j.chroma.2021.462706] [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: 09/22/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 11/29/2022]
Abstract
Non-target screening of secondary organic aerosol compounds in ice cores is used to reconstruct atmospheric conditions and sources and is a valuable tool to elucidate the chemical profiles of samples with the aim to obtain as much information as possible from one mass spectrometric measurement. The coupling of mass spectrometry to chromatography limits the results of a non-target screening to signals of compounds within a certain polarity range based on the utilized stationary phases of the columns. Comprehensive two-dimensional liquid chromatography (LCxLC) introduces a second column of different functionality to enable the analysis of a broader range of analytes. Conventional LCxLC requires complex instrumental setups and is difficult to implement for most laboratories. In this work we demonstrate an approach to approximate a comprehensive non-target screening using a simple instrumental setup employing two columns of orthogonal functionalities (HILIC and reversed-phase), an additional pump, and an additional six-port valve. The void volume of the first dimension is transferred to the reversed-phase column to analyze low-polarity compounds during the re-equilibration of the HILIC. Method validation showed adequate repeatability and detection limits for two selected void volume markers and application to snow samples collected at the high-alpine research station Jungfraujoch yielded a total of 270 signals. Comparison to the one-dimensional HILIC approach revealed 175 signals exclusively detected in the two-dimensional method, of which 23 were detected in the second dimension. Detailed analysis of the chemical composition showed consistency with expected compounds in snow samples like lignin or cellulose combustion products from biomass burning or secondary organic aerosol constituents. The results confirmed that one-dimensional chromatography was not sufficient to cover the entire range of compounds and the developed two-dimensional approach will improve the information content from non-target screening while maintaining time of analysis and a simple instrumental setup.
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Affiliation(s)
- Anja Beschnitt
- Department of Chemistry, Johannes-Gutenberg University, Duesbergweg 10-14, Mainz 55128, Germany
| | - Margit Schwikowski
- Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI 5232, Switzerland
| | - Thorsten Hoffmann
- Department of Chemistry, Johannes-Gutenberg University, Duesbergweg 10-14, Mainz 55128, Germany.
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4
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Meléndez-Martínez AJ, Mandić AI, Bantis F, Böhm V, Borge GIA, Brnčić M, Bysted A, Cano MP, Dias MG, Elgersma A, Fikselová M, García-Alonso J, Giuffrida D, Gonçalves VSS, Hornero-Méndez D, Kljak K, Lavelli V, Manganaris GA, Mapelli-Brahm P, Marounek M, Olmedilla-Alonso B, Periago-Castón MJ, Pintea A, Sheehan JJ, Tumbas Šaponjac V, Valšíková-Frey M, Meulebroek LV, O'Brien N. A comprehensive review on carotenoids in foods and feeds: status quo, applications, patents, and research needs. Crit Rev Food Sci Nutr 2021; 62:1999-2049. [PMID: 33399015 DOI: 10.1080/10408398.2020.1867959] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Carotenoids are isoprenoids widely distributed in foods that have been always part of the diet of humans. Unlike the other so-called food bioactives, some carotenoids can be converted into retinoids exhibiting vitamin A activity, which is essential for humans. Furthermore, they are much more versatile as they are relevant in foods not only as sources of vitamin A, but also as natural pigments, antioxidants, and health-promoting compounds. Lately, they are also attracting interest in the context of nutricosmetics, as they have been shown to provide cosmetic benefits when ingested in appropriate amounts. In this work, resulting from the collaborative work of participants of the COST Action European network to advance carotenoid research and applications in agro-food and health (EUROCAROTEN, www.eurocaroten.eu, https://www.cost.eu/actions/CA15136/#tabs|Name:overview) research on carotenoids in foods and feeds is thoroughly reviewed covering aspects such as analysis, carotenoid food sources, carotenoid databases, effect of processing and storage conditions, new trends in carotenoid extraction, daily intakes, use as human, and feed additives are addressed. Furthermore, classical and recent patents regarding the obtaining and formulation of carotenoids for several purposes are pinpointed and briefly discussed. Lastly, emerging research lines as well as research needs are highlighted.
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Affiliation(s)
- Antonio J Meléndez-Martínez
- Nutrition and Food Science, Toxicology and Legal Medicine Department, Universidad de Sevilla, Sevilla, Spain
| | - Anamarija I Mandić
- Institute of Food Technology in Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | - Filippos Bantis
- Department of Horticulture, Aristotle University, Thessaloniki, Greece
| | - Volker Böhm
- Institute of Nutritional Sciences, Friedrich-Schiller-Universität Jena, Jena, Germany
| | - Grethe Iren A Borge
- Fisheries and Aquaculture Research, Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås, Norway
| | - Mladen Brnčić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Anette Bysted
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - M Pilar Cano
- Institute of Food Science Research (CIAL) (CSIC-UAM), Madrid, Spain
| | - M Graça Dias
- Instituto Nacional de Saúde Doutor Ricardo Jorge, I.P., Lisboa, Portugal
| | | | - Martina Fikselová
- Department of Food Hygiene and Safety, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | | | | | | | | | - Kristina Kljak
- Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Vera Lavelli
- DeFENS-Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - George A Manganaris
- Department of Agricultural Sciences, Biotechnology & Food Science, Cyprus University of Technology, Lemesos, Cyprus
| | - Paula Mapelli-Brahm
- Institute of Food Technology in Novi Sad, University of Novi Sad, Novi Sad, Serbia
| | | | | | | | - Adela Pintea
- Chemistry and Biochemistry Department, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | | | | | | | - Lieven Van Meulebroek
- Department of Veterinary Public Health and Food Safety, Ghent University, Merelbeke, Belgium
| | - Nora O'Brien
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
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5
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Sánchez-Martínez JD, Bueno M, Alvarez-Rivera G, Tudela J, Ibañez E, Cifuentes A. In vitro neuroprotective potential of terpenes from industrial orange juice by-products. Food Funct 2020; 12:302-314. [PMID: 33300906 DOI: 10.1039/d0fo02809f] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Citrus sinensis (orange) by-products represent one of the most abundant citric residues from orange juice industrial production, and are a promising source of health-promoting compounds like terpenes. In this work, different extraction solvents have been employed to increase terpene extraction yield and selectivity from this orange juice by-product. A set of bioactivity assays including enzymatic (acetylcholinesterase (AChE), butylcholinesterase (BChE) and lipoxygenase (LOX)) as well as antioxidant (ABTS, reactive oxygen species (ROS) and reactive nitrogen species (RNS)) activity tests have been applied to investigate the neuroprotective potential of these compounds. New fluorescence-based methodologies were developed for AChE and BChE assays to overcome the drawbacks of these tests when used in vitro to determine the anticholinergic activity of colored extracts. Comprehensive phytochemical profiling based on gas chromatography coupled to quadrupole time of flight mass spectrometry (GC-qTOF-MS) analysis showed ahigh content of mono- and sesquiterpenes in the extracts obtained with ethyl acetate, whereas n-heptane extracts exhibited a large amount of triterpenes and carotenoids. From a neuroprotective activity point of view, ethyl acetate extract is the most promising due to its anticholinergic activity and antioxidant capacity. Finally, a multivariate data analysis revealed a good correlation between some monoterpenes (e.g. nerol or limonene) and the antioxidant capacity of the natural extract, while a group of sesquiterpenes (e.g.δ-Cadinene or nootkatone) showed correlation with the observed AChE, BChE and LOX inhibition capacity. Hydrocarbons mono- and sesquiterpenoids reveal high capacity in vitro to cross the blood-brain barrier (BBB).
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Affiliation(s)
- José David Sánchez-Martínez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Mónica Bueno
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Gerardo Alvarez-Rivera
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - José Tudela
- Department of Biochemistry and Molecular Biology-A, University of Murcia, Espinardo, Murcia, Spain
| | - Elena Ibañez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
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6
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Giuffrida D, Zoccali M, Mondello L. Recent developments in the carotenoid and carotenoid derivatives chromatography-mass spectrometry analysis in food matrices. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116047] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Codesido S, Rudaz S, Guillarme D, Horváth K, Fekete S. Apparent efficiency of serially coupled columns in gradient elution liquid chromatography: Extension to the combination of any column formats. J Chromatogr A 2019; 1588:159-162. [DOI: 10.1016/j.chroma.2018.12.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/13/2018] [Accepted: 12/17/2018] [Indexed: 11/28/2022]
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8
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Supercritical Fluid Chromatography × Ultra-High Pressure Liquid Chromatography for Red Chilli Pepper Fingerprinting by Photodiode Array, Quadrupole-Time-of-Flight and Ion Mobility Mass Spectrometry (SFC × RP-UHPLC-PDA-Q-ToF MS-IMS). FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1307-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Bonaccorsi I, Cacciola F, Utczas M, Inferrera V, Giuffrida D, Donato P, Dugo P, Mondello L. Characterization of the pigment fraction in sweet bell peppers (Capsicum annuum L.) harvested at green and overripe yellow and red stages by offline multidimensional convergence chromatography/liquid chromatography-mass spectrometry. J Sep Sci 2018; 39:3281-91. [PMID: 27391392 DOI: 10.1002/jssc.201600220] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/05/2016] [Accepted: 06/25/2016] [Indexed: 11/09/2022]
Abstract
Offline multidimensional supercritical fluid chromatography combined with reversed-phase liquid chromatography was employed for the carotenoid and chlorophyll characterization in different sweet bell peppers (Capsicum annuum L.) for the first time. The first dimension consisted of an Acquity HSS C18 SB (100 × 3 mm id, 1.8 μm particles) column operated with a supercritical mobile phase in an ultra-performance convergence chromatography system, whereas the second dimension was performed in reversed-phase mode with a C30 (250 × 4.6 mm id, 3.0 μm particles) stationary phase combined with photodiode array and mass spectrometry detection. This approach allowed the determination of 115 different compounds belonging to chlorophylls, free xanthophylls, free carotenes, xanthophyll monoesters, and xanthophyll diesters, and proved to be a significant improvement in the pigments determination compared to the conventional one-dimensional liquid chromatography approach so far applied to the carotenoid analysis in the studied species. Moreover, the present study also aimed to investigate and to compare the carotenoid stability and composition in overripe yellow and red bell peppers collected directly from the plant, thus also evaluating whether biochemical changes are linked to carotenoid degradation in the nonclimacteric investigated fruits, for the first time.
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Affiliation(s)
- Ivana Bonaccorsi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - Francesco Cacciola
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali, University of Messina, Messina, Italy
| | - Margita Utczas
- Chromaleont S.r.L, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - Veronica Inferrera
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - Daniele Giuffrida
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali, University of Messina, Messina, Italy
| | - Paola Donato
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali, University of Messina, Messina, Italy
| | - Paola Dugo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy.,Chromaleont S.r.L, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy.,Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, Rome, Italy
| | - Luigi Mondello
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy. .,Chromaleont S.r.L, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy. .,Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, Rome, Italy.
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10
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Application of Comprehensive Two-Dimensional Liquid Chromatography for Carotenoid Analysis in Red Mamey (Pouteria sapote) Fruit. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0416-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Mannazzu I, Landolfo S, Lopes da Silva T, Buzzini P. Red yeasts and carotenoid production: outlining a future for non-conventional yeasts of biotechnological interest. World J Microbiol Biotechnol 2015; 31:1665-73. [PMID: 26335057 DOI: 10.1007/s11274-015-1927-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/14/2015] [Indexed: 01/20/2023]
Abstract
Carotenoids are one of the most common classes of pigments that occur in nature. Due to their biological properties, they are widely used in phytomedicine and in the chemical, pharmaceutical, cosmetic, food and feed industries. Accordingly, their global market is continuously growing, and it is expected to reach about US$1.4 billion in 2018. Carotenoids can be easily produced by chemical synthesis, although their biotechnological production is rapidly becoming an appealing alternative to the chemical route, partly due to consumer concerns against synthetic pigments. Among the yeasts, and apart from the pigmented species Phaffia rhodozyma (and its teleomorph Xanthophyllomyces dendrorhous), a handful of species of the genera Rhodosporidium, Rhodotorula, Sporobolomyces and Sporidiobolus are well known carotenoid producers. These are known as 'red yeasts', and their ability to synthesize mixtures of carotenoids from low-cost carbon sources has been broadly studied recently. Here, in agreement with the renewed interest in microbial carotenoids, the recent literature is reviewed regarding the taxonomy of the genera Rhodosporidium, Rhodotorula, Sporobolomyces and Sporidiobolus, the stress factors that influence their carotenogenesis, and the most advanced analytical tools for evaluation of carotenoid production. Moreover, a synopsis of the molecular and "-omic" tools available for elucidation of the metabolic pathways of the microbial carotenoids is reported.
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Affiliation(s)
- Ilaria Mannazzu
- Dipartimento di Agraria, Università degli Studi di Sassari, Viale Italia 39, Sassari, Italy.
| | - Sara Landolfo
- Dipartimento di Agraria, Università degli Studi di Sassari, Viale Italia 39, Sassari, Italy
| | - Teresa Lopes da Silva
- Unidade de Bioenergia, Laboratorio Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, Lisbon, Portugal
| | - Pietro Buzzini
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Collezione dei Lieviti Industriali (DBVPG), Università di Perugia, Borgo XX Giugno 74, Perugia, Italy
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12
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Tomasini D, Cacciola F, Rigano F, Sciarrone D, Donato P, Beccaria M, Caramão EB, Dugo P, Mondello L. Complementary Analytical Liquid Chromatography Methods for the Characterization of Aqueous Phase from Pyrolysis of Lignocellulosic Biomasses. Anal Chem 2014; 86:11255-62. [DOI: 10.1021/ac5038957] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Débora Tomasini
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Institute of Chemistry-Universidade Federal do Rio Grande do Sul, Avenida Bento
Gonçalves, 9500, 91501-960 Porto Alegre, Rio Grande do Sul, Brazil
| | - Francesco Cacciola
- Dipartimento di Scienze dell’Ambiente,
della Sicurezza, del Territorio, degli Alimenti e della Salute, University of Messina, Viale Ferdinando Stagno d’Alcontres 31, 98166 Messina, Italy
- Chromaleont S.r.l., A Start-Up of the
University of Messina, c/o Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
| | - Francesca Rigano
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
| | - Danilo Sciarrone
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
| | - Paola Donato
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Chromaleont S.r.l., A Start-Up of the
University of Messina, c/o Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Centro Integrato
di Ricerca, University Campus Bio-Medico of Rome, Via Álvaro
del Portillo, 21, 00128 Rome, Italy
| | - Marco Beccaria
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
| | - Elina B. Caramão
- Institute of Chemistry-Universidade Federal do Rio Grande do Sul, Avenida Bento
Gonçalves, 9500, 91501-960 Porto Alegre, Rio Grande do Sul, Brazil
| | - Paola Dugo
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Chromaleont S.r.l., A Start-Up of the
University of Messina, c/o Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Centro Integrato
di Ricerca, University Campus Bio-Medico of Rome, Via Álvaro
del Portillo, 21, 00128 Rome, Italy
| | - Luigi Mondello
- Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Chromaleont S.r.l., A Start-Up of the
University of Messina, c/o Dipartimento di Scienze del Farmaco e Prodotti
per la Salute, University of Messina, Viale Annunziata, 98168 Messina, Italy
- Centro Integrato
di Ricerca, University Campus Bio-Medico of Rome, Via Álvaro
del Portillo, 21, 00128 Rome, Italy
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13
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Beccaria M, Sullini G, Cacciola F, Donato P, Dugo P, Mondello L. High performance characterization of triacylglycerols in milk and milk-related samples by liquid chromatography and mass spectrometry. J Chromatogr A 2014; 1360:172-87. [DOI: 10.1016/j.chroma.2014.07.073] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 06/26/2014] [Accepted: 07/23/2014] [Indexed: 11/24/2022]
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14
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Lim H, Bergvall C, Jarvis I, Mattsson Å, Dreij K, Stenius U, Westerholm R. Benzo[a]pyrene-specific online high-performance liquid chromatography fractionation of air particulate extracts – A tool for evaluating biological interactions. J Chromatogr A 2014; 1355:100-6. [DOI: 10.1016/j.chroma.2014.05.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 02/06/2023]
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15
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Han Q, Song H, Gao S, Zeng X, Yu Z, Yu Y, Sheng G, Fu J. Determination of ten hexabromocyclododecane diastereoisomers using two coupled reversed-phase columns and liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:1473-1478. [PMID: 24861597 DOI: 10.1002/rcm.6922] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 04/07/2014] [Accepted: 04/08/2014] [Indexed: 06/03/2023]
Abstract
RATIONALE Hexabromocyclododecanes (HBCDs) are raising concern due to their potential persistence, bioaccumulation and toxicity. Apart from the widely reported isomers α-, β-, γ-HBCD, other HBCD diastereoisomers such as δ-HBCD have been also recently found in environmental media and biota. These newly reported diastereoisomers might give more insight into the degradation and biotransformation of HBCDs. METHODS A reversed-phase C18 column coupled to a C8 column was used to improve the chromatographic resolution. A gradient mobile phase consisting of methanol, acetonitrile, and water, as well as tandem mass spectrometry parameters, were optimized. Ten HBCD diastereoisomers were finally determined by liquid chromatography/tandem mass spectrometry in multiple reaction monitoring mode with negative electrospray ionization. RESULTS Eight of the ten HBCDs could be chromatographically separated by using the coupled reversed-phase columns. Results of the method validation indicate high reproducibility and good sensitivity. The limit of detection ranged from 0.4 to 0.8 pg, and the relative standard deviations of intra- and inter-day injections ranged from 1.8 to 5.1% and from 2.7 to 9.5%, respectively. The developed method was further applied to the analysis of HBCDs in HBCD commercial products and soil samples. δ-, η-, θ-, and ε-HBCD were detected in commercial products and soil samples. CONCLUSIONS The present study revealed that δ-, η-, θ-, and ε-HBCD might occur ubiquitously in environmental media and biota. These newly reported diastereoisomers may help us to better understand the fate and transformation of HBCDs in the environment.
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Affiliation(s)
- Qian Han
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of the Chinese Academy of Sciences, Beijing, 100039, China
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Chalcraft KR, McCarry BE. Tandem LC columns for the simultaneous retention of polar and nonpolar molecules in comprehensive metabolomics analysis. J Sep Sci 2013; 36:3478-85. [DOI: 10.1002/jssc.201300779] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 08/28/2013] [Accepted: 08/30/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Kenneth R. Chalcraft
- Department of Chemistry and Chemical Biology; McMaster University; Hamilton Ontario Canada
| | - Brian E. McCarry
- Department of Chemistry and Chemical Biology; McMaster University; Hamilton Ontario Canada
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Franke AA, Morrison CM, Custer LJ, Li X, Lai JF. Simultaneous analysis of circulating 25-hydroxy-vitamin D3, 25-hydroxy-vitamin D2, retinol, tocopherols, carotenoids, and oxidized and reduced coenzyme Q10 by high performance liquid chromatography with photo diode-array detection using C18 and C30 columns alone or in combination. J Chromatogr A 2013; 1301:1-9. [PMID: 23827466 PMCID: PMC4128684 DOI: 10.1016/j.chroma.2013.05.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/10/2013] [Accepted: 05/13/2013] [Indexed: 11/23/2022]
Abstract
Circulating lipid-phase micronutrients (LPM) such as 25-hydroxylated D vitamers, retinol, tocopherols, carotenoids including their isomers, and coenzyme Q10 play important roles in health maintenance and disease prevention and can serve as useful biomarkers. We developed fast, affordable, and accurate HPLC assays that simultaneously measured all above LPM in a single run using UV/VIS detection at 265nm, 295nm, and 480nm with (1) a C18 column alone; (2) a C30 column alone; or (3) each of these columns connected in series. The C18 column alone could separate all major LPM of interest in less than 17min but insufficiently resolved the lycopene isomers, the 25-hydroxylated D vitamers, lutein from zeaxanthin and β- from γ-tocopherol. The C30 column alone separated all LPM of interest including many isomeric analytes but failed to resolve the Q10 compounds, which co-eluted with carotenoids. Connecting the C18 and C30 columns in series with a detector after the C30 column and a pressure resistant detector between the columns resulted in ideal resolution and accurate quantitation of all LPM of interest but required software capable of processing the acquired data from both detectors. Connecting the C18 and C30 columns in series with exclusively one detector after the C30 column resulted in carotenoid-Q10 interferences, however, this was remedied by heart-cutting 2D-LC with a 6-port valve between the columns, which resolved all analytes in 42min. Faster run times led to some analytes not being resolved. Many variations of these methods are possible to meet the needs of individual requirements while minimizing sample material and turn-around-times.
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Affiliation(s)
- Adrian A Franke
- University of Hawai'i Cancer Center, Honolulu, HI 96813, USA.
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Lai JF, Franke AA. Analysis of circulating lipid-phase micronutrients in humans by HPLC: review and overview of new developments. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 931:23-41. [PMID: 23770735 PMCID: PMC4439215 DOI: 10.1016/j.jchromb.2013.04.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/14/2013] [Accepted: 04/22/2013] [Indexed: 02/08/2023]
Abstract
Retinol, tocopherols, coenzyme Q10, carotenoids, and vitamin D are lipophilic compounds shown to function as important health-protective agents by mitigating the damaging effects of oxidative and other injury. Scientific interest in evaluating these compounds has resurfaced in recent years, particularly in the nutritional, clinical and epidemiologic fields, and has precipitated the development of a multitude of new analytical techniques. This review considers recent developments in HPLC-based assays since 2007 for the simultaneous determination of these lipid-phase compounds utilizing exclusively serum or plasma as these matrices are mostly used in clinical and epidemiological investigations. We also provide an overview of blood measurements for selected carotenoids, tocopherols, coenzyme Q10 and retinol from the last 15years of healthy umbilical cord blood, children, and adults.
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Affiliation(s)
- Jennifer F. Lai
- University of Hawai'i Cancer Center, Honolulu, HI 96813, United States
| | - Adrian A. Franke
- University of Hawai'i Cancer Center, Honolulu, HI 96813, United States
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Fougère L, Elfakir C, Lafosse M. Evaluation of a liquid chromatography method for quality control of methylated cyclodextrins. J Chromatogr A 2013; 1277:42-7. [DOI: 10.1016/j.chroma.2012.12.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 11/26/2012] [Accepted: 12/21/2012] [Indexed: 11/26/2022]
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Dugo P, Fawzy N, Cichello F, Cacciola F, Donato P, Mondello L. Stop-flow comprehensive two-dimensional liquid chromatography combined with mass spectrometric detection for phospholipid analysis. J Chromatogr A 2013; 1278:46-53. [DOI: 10.1016/j.chroma.2012.12.042] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/23/2012] [Accepted: 12/19/2012] [Indexed: 01/01/2023]
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Ultra high pressure in the second dimension of a comprehensive two-dimensional liquid chromatographic system for carotenoid separation in red chili peppers. J Chromatogr A 2012; 1255:244-51. [DOI: 10.1016/j.chroma.2012.06.076] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 06/20/2012] [Accepted: 06/25/2012] [Indexed: 11/17/2022]
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Donato P, Cacciola F, Tranchida PQ, Dugo P, Mondello L. Mass spectrometry detection in comprehensive liquid chromatography: basic concepts, instrumental aspects, applications and trends. MASS SPECTROMETRY REVIEWS 2012; 31:523-559. [PMID: 22383300 DOI: 10.1002/mas.20353] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 11/10/2011] [Accepted: 11/10/2011] [Indexed: 05/31/2023]
Abstract
The review, as can be deduced from the title, focuses on both theoretical and practical aspects of the use of mass spectrometry as a third, added dimension to a comprehensive LC (LC × LC) system, generating the most powerful analytical tool today for non-volatile analytes. The first part deals with the technical requirements for linkage of an LC × LC system to an MS one, including the choice of the mobile phase (buffer and salts), flow rate (splitting), type of ionization (interface); advantages and disadvantages of off-line and on-line methods are discussed, as well. A discussion of the various aspects of instrumentation is provided, both from a chromatographic and mass spectrometry standpoint, with particular emphasis directed to the choice of column sets, spatial resolution, mass resolving power, mass accuracy, and tandem-MS capabilities. The extent to which mass spectrometry may be of aid in unraveling column-outlet multicompound bands is highlighted, along with its effectiveness as a chromatographic detector of excellent sensitivity, universality yet with potential in terms of selectivity and amenability to quantitative analysis over a wide dynamic range. The following section of the review contains significant applications of comprehensive two-dimensional LC coupled to MS in different areas of research, with details on interfaces, column stationary phases, modulation and MS parameters. It is not the intention of the authors to provide a comprehensive description of the techniques, but merely to discuss only those aspects which are essential for successful applications of the LC-MS combination. The reader will be acquainted with the enormous potential of this hyphenated technique, and the factors and instrumental developments that have concurred to make it emerge to a central role in specialized fields, such as proteomics.
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Affiliation(s)
- Paola Donato
- University Campus Bio-Medico, Via Álvaro del Portillo 21, 00128 Rome, Italy
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Germanò MP, Cacciola F, Donato P, Dugo P, Certo G, D'Angelo V, Mondello L, Rapisarda A. Betula pendula leaves: polyphenolic characterization and potential innovative use in skin whitening products. Fitoterapia 2012; 83:877-82. [PMID: 22480759 DOI: 10.1016/j.fitote.2012.03.021] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 03/14/2012] [Accepted: 03/19/2012] [Indexed: 10/28/2022]
Abstract
The research of new tyrosinase inhibitors is currently important for the development of skin whitening agents; particularly, birch leaves extracts are included in many skin cosmetic products. In this study, the potential ability of Betula pendula leaves ethanolic extract (BE) was evaluated on mushroom tyrosinase activity. Results showed that BE was capable to inhibit dose-dependently l-DOPA oxidation catalyzed by tyrosinase. The inhibition kinetics, analyzed by Lineweaver-Burk plots, showed a noncompetitive inhibition of BE towards the enzyme, using l-DOPA as substrate. The inhibitory mechanism of BE as studied by spectrophotometric analysis, demonstrated its ability to chelate copper ion in the active site of tyrosinase. In addition, BE exhibited Fe(2+)-chelating ability (IC(50)=614.12±2.14 μg/mL), reducing power and radical-scavenging properties (IC(50)=137.22±1.98 μg/mL). These results suggest the usefulness of birch leaves extracts in cosmetic and pharmaceutical industries for their skin-whitening and antioxidant effects. Determination of the polyphenolic compounds in BE extracts was afterward achieved by means of high-performance liquid chromatography (HPLC) with photodiode array (PDA) and mass spectrometry (MS) detection. A total of 25 compounds were positively identified, through the complementary analytical information, and are reported in such a matrix for the first time. Knowledge on the qualitative composition and contents of these natural sources in fact represents mandatory information, for rational consumption and correlation of the beneficial effects to the specific amounts.
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Affiliation(s)
- M P Germanò
- Dipartimento Farmaco-Biologico, University of Messina, Messina, Italy
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Dugo P, Beccaria M, Fawzy N, Donato P, Cacciola F, Mondello L. Mass spectrometric elucidation of triacylglycerol content of Brevoortia tyrannus (menhaden) oil using non-aqueous reversed-phase liquid chromatography under ultra high pressure conditions. J Chromatogr A 2012; 1259:227-36. [PMID: 22503927 DOI: 10.1016/j.chroma.2012.03.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 03/14/2012] [Accepted: 03/19/2012] [Indexed: 12/14/2022]
Abstract
A non-aqueous reversed phase high performance liquid chromatography method was developed, and optimized for triacylglycerol analysis in a Brevoortia tyrannus (menhaden) oil sample. Four columns were serially coupled to tackle such a task, for a total length of 60 cm of shell-packed stationary phase, and operated under ultra high pressure conditions. As detection, positive-ion atmospheric pressure chemical ionization mass spectrometry was used to attain identification of the analyzed sample components. A number of 137 triacylglycerols containing up to 19 fatty acids, with 14-22 carbon atom alkyl chain length and 0-6 double bonds, were positively identified in the complex lipidic sample. This is the first work that reports an extensive characterization of the triacylglycerol fraction of menhaden oil.
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Affiliation(s)
- Paola Dugo
- Dipartimento Farmaco-chimico, Università di Messina, viale Annunziata, 98168 Messina, Italy.
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Fanali C, Dugo L, Cacciola F, Beccaria M, Grasso S, Dachà M, Dugo P, Mondello L. Chemical characterization of Sacha Inchi (Plukenetia volubilis L.) oil. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:13043-13049. [PMID: 22053706 DOI: 10.1021/jf203184y] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A chemical characterization of the major components, namely, triacylglycerols (TAGs), polyphenols, and tocopherols in a Sacha inchi oil derived from cold pressing of the seed, is hereby reported. To tackle such a task, high-performance liquid chromatography in combination with photodiode array (PDA), fluorescence (RF), and mass spectrometry (MS) detection was employed. The latter was interfaced with atmospheric pressure chemical ionization and with electrospray ionization for the analysis of TAGs and polyphenols, respectively, whereas RF detection was tested for the determination of tocopherol content. Furthermore, fatty acid methyl esters (FAMEs) were evaluated by gas chromatography-flame ionization detector. A 93% amount of total fatty acids was represented by unsaturated FAMEs with the greatest percentage represented by linoleic (L) and linolenic (Ln) accounting for approximately 50 and 36%, respectively. The main TAGs (>10%) were represented by LLnL, LnLnLn, and LnLLn; the latter was present in the oil sample at the highest percentage (22.2%). Among tocopherols, γ-tocopherol was detected to be the most abundant component (over 50%). The polyphenolic composition was also investigated, and a total of 15 compounds were positively identified, through the complementary analytical information coming from PDA and MS data. To the best of our knowledge, this is the first report providing a thorough chemical characterization of a Plukenetia volubilis L. oil.
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Affiliation(s)
- Chiara Fanali
- University Campus Bio-Medico, Via Álvaro del Portillo 21, 00128 Rome, Italy.
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Donato P, Cacciola F, Mondello L, Dugo P. Comprehensive chromatographic separations in proteomics. J Chromatogr A 2011; 1218:8777-90. [DOI: 10.1016/j.chroma.2011.05.070] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 05/11/2011] [Accepted: 05/21/2011] [Indexed: 01/22/2023]
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Donato P, Cacciola F, Cichello F, Russo M, Dugo P, Mondello L. Determination of phospholipids in milk samples by means of hydrophilic interaction liquid chromatography coupled to evaporative light scattering and mass spectrometry detection. J Chromatogr A 2011; 1218:6476-82. [DOI: 10.1016/j.chroma.2011.07.036] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 07/08/2011] [Accepted: 07/12/2011] [Indexed: 01/10/2023]
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Dixson DD, Boddy CN, Doyle RP. Reinvestigation of Coenzyme Q10 Isolation from Sporidiobolus johnsonii. Chem Biodivers 2011; 8:1033-51. [DOI: 10.1002/cbdv.201000278] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Shaaban H, Górecki T. High-Efficiency Liquid Chromatography Using Sub-2 μm Columns at Elevated Temperature for the Analysis of Sulfonamides in Wastewater. Chromatographia 2011. [DOI: 10.1007/s10337-011-2038-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Tistaert C, Dejaegher B, Heyden YV. Chromatographic separation techniques and data handling methods for herbal fingerprints: A review. Anal Chim Acta 2011; 690:148-61. [DOI: 10.1016/j.aca.2011.02.023] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 02/04/2011] [Accepted: 02/09/2011] [Indexed: 10/18/2022]
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Russo M, Cacciola F, Bonaccorsi I, Dugo P, Mondello L. Determination of flavanones in Citrus
juices by means of one- and two-dimensional liquid chromatography. J Sep Sci 2011; 34:681-7. [DOI: 10.1002/jssc.201000844] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 12/30/2010] [Accepted: 12/30/2010] [Indexed: 12/30/2022]
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HPLC–MS/MS shotgun proteomic research of deer antlers with multiparallel protein extraction methods. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:3370-4. [DOI: 10.1016/j.jchromb.2010.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Revised: 10/15/2010] [Accepted: 10/24/2010] [Indexed: 11/23/2022]
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Characterization of new types of stationary phases for fast and ultra-fast liquid chromatography by signal processing based on AutoCovariance Function: A case study of application to Passiflora incarnata L. extract separations. J Chromatogr A 2010; 1217:4355-64. [DOI: 10.1016/j.chroma.2010.04.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 04/08/2010] [Accepted: 04/19/2010] [Indexed: 11/24/2022]
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Guo Y, Srinivasan S, Gaiki S. Evaluation of The Peak Capacity of Various RP-Columns for Small Molecule Compounds in Gradient Elution. Chromatographia 2009. [DOI: 10.1365/s10337-009-1288-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Tao D, Zhu G, Sun L, Ma J, Liang Z, Zhang W, Zhang L, Zhang Y. Serially coupled microcolumn reversed phase liquid chromatography for shotgun proteomic analysis. Proteomics 2009; 9:2029-36. [DOI: 10.1002/pmic.200800649] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Dugo P, Herrero M, Giuffrida D, Ragonese C, Dugo G, Mondello L. Analysis of native carotenoid composition in orange juice using C30columns in tandem. J Sep Sci 2008; 31:2151-60. [DOI: 10.1002/jssc.200800073] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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