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Guiard BP, Gotti G. The High-Precision Liquid Chromatography with Electrochemical Detection (HPLC-ECD) for Monoamines Neurotransmitters and Their Metabolites: A Review. Molecules 2024; 29:496. [PMID: 38276574 PMCID: PMC10818480 DOI: 10.3390/molecules29020496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
This review highlights the advantages of high-precision liquid chromatography with an electrochemical detector (HPLC-ECD) in detecting and quantifying biological samples obtained through intracerebral microdialysis, specifically the serotonergic and dopaminergic systems: Serotonin (5-HT), 5-hydroxyindolacetic acid (5-HIAA), 3,4-dihydroxyphenylacetic acid (DOPAC), dopamine (DA), 3-metoxytryptamin (3-MT) and homovanillic acid (HVA). Recognized for its speed and selectivity, HPLC enables direct analysis of intracerebral microdialysis samples without complex derivatization. Various chromatographic methods, including reverse phase (RP), are explored for neurotransmitters (NTs) and metabolites separation. Electrochemical detector (ECD), particularly with glassy carbon (GC) electrodes, is emphasized for its simplicity and sensitivity, aimed at enhancing reproducibility through optimization strategies such as modified electrode materials. This paper underscores the determination of limits of detection (LOD) and quantification (LOQ) and the linear range (L.R.) showcasing the potential for real-time monitoring of compounds concentrations. A non-exhaustive compilation of literature values for LOD, LOQ, and L.R. from recent publications is included.
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Affiliation(s)
- Bruno P. Guiard
- Centre de Recherches sur la Cognition Animale (CRCA), CNRS UMR5169, 31062 Toulouse, France;
- Centre de Biologie Intégrative (CBI), Faculté Sciences Ingénierie (FSI), Université de Toulouse III, 31062 Toulouse, France
| | - Guillaume Gotti
- Centre de Recherches sur la Cognition Animale (CRCA), CNRS UMR5169, 31062 Toulouse, France;
- Centre de Biologie Intégrative (CBI), Faculté Sciences Ingénierie (FSI), Université de Toulouse III, 31062 Toulouse, France
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2
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Wei B, Wang J, Dai L, Chen B, Zhang K. Characterization of synthetic guide ribonucleic acids through hydrophilic interaction chromatography coupled with mass spectrometry. J Chromatogr A 2023; 1710:464414. [PMID: 37806043 DOI: 10.1016/j.chroma.2023.464414] [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: 07/25/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/10/2023]
Abstract
In this study, we aimed to develop a hydrophilic interaction liquid chromatography (HILIC) method for the analysis of single guide ribonucleic acid (sgRNA), a critical reagent used in CRISPR genome editing. Our results showed that effective profiling of sgRNA can be achieved by suppressing the surface charge of the stationary phase in HILIC. We identified hydrogen bonding as the primary retention mechanism with potential weak partitioning in HILIC separation of large oligonucleotides like 100-mer sgRNA. Moreover, we demonstrated that direct coupling of HILIC with mass spectrometry (MS) allows the intact mass analysis of sgRNA and its impurities with minimal adduct present. Finally, we characterized the post peak shown in the low temperature HILIC and identified it as sgRNA aggregates. Our findings provide valuable insight into the characterization of sgRNA and highlight the potential of HILIC-MS as a powerful analytical tool for relatively large oligonucleotide analysis.
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Affiliation(s)
- Bingchuan Wei
- Synthetic Molecule Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States of America.
| | - Jenny Wang
- Synthetic Molecule Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States of America
| | - Lulu Dai
- Synthetic Molecule Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States of America
| | - Bifan Chen
- Synthetic Molecule Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States of America
| | - Kelly Zhang
- Synthetic Molecule Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, United States of America.
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3
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Hu Y, Kadotani J, Kuwahara Y, Ihara H, Takafuji M. Zwitterionic polymer-terminated porous silica stationary phases for highly selective separation in hydrophilic interaction chromatography. J Chromatogr A 2023; 1693:463885. [PMID: 36848731 DOI: 10.1016/j.chroma.2023.463885] [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: 10/27/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023]
Abstract
We described two novel zwitterionic polymer-terminated porous silica stationary phases containing the same pyridinium cation and anions of different side chains (carboxylate and phosphonate groups) for use in hydrophilic interaction liquid chromatography (HILIC). These two novel columns were prepared by polymerizing 4-vinylpyridine and grafting it onto a silica surface, followed by quaternization reaction with 3-bromopropionic acid (Sil-VPC24) and (3-bromopropyl) phosphonic acid (Sil-VPP24), which possess positively charged pyridinium groups, and negatively charged carboxylate and phosphonate groups, respectively. The products obtained were verified through relevant characterization techniques such as elemental analysis, Fourier-transform infrared spectroscopy, thermogravimetric analysis, Zeta potential analysis, and Brunauer-Emmett-Teller analysis. The retention properties and mechanisms of different types of compounds (neutral, cationic, and anionic) on the two zwitterionic-modified silica stationary phases were studied by varying the buffer salt concentration and pH of the eluent. The separation of phenol and aromatic acids, disubstituted benzene isomers, sulfonamide drugs, as well as nucleosides/nucleobases were investigated on the two packed novel columns and a commercial zwitterionic column in identical HILIC mode, ensuring a thorough comparison between both novel columns and with a commercial standard. The results illustrated that various compounds could be separated up to various efficiencies based on the mechanism of hydrophilic interaction-based retention between the solutes and the two zwitterionic polymer stationary phases. The Sil-VPP24 column demonstrated the best separation performance out of the three, as well as flexible selectivity and excellent resolution. Both novel columns exhibited excellent stability and chromatographic repeatability for the separation of seven nucleosides and bases.
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Affiliation(s)
- Yongxing Hu
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Jun Kadotani
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Yutaka Kuwahara
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan; National Institute of Technology, Okinawa College, 905, Henoko, Okinawa 905-2192, Japan
| | - Makoto Takafuji
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
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4
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Mazzella N, Moreira A, Eon M, Médina A, Millan-Navarro D, Creusot N. Hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry method for quantification of five phospholipid classes in various matrices. MethodsX 2023; 10:102026. [PMID: 36718203 PMCID: PMC9883239 DOI: 10.1016/j.mex.2023.102026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
Hydrophilic interaction liquid chromatography (HILIC), coupled to tandem mass spectrometry, can be used to separate and determine various polar lipid classes. The development of an HILIC chromatographic separation of several molecular species among five phospholipid classes (PC, PE, PG, PI and PS) is reported here. In this method, a gradient with acetonitrile and 40 mM ammonium acetate buffer was employed. The initial composition was 95% of acetonitrile, then this proportion was decreased to 70% in order to elute all the compounds of interest for a total running time of 11 mins. Furthermore, mobile phase pH can affect the ionizable character of the compounds, according to their pKa values, and also the stationary phase charge state. The influence of such a parameter on both retention times and resolution was evaluated. Besides, the response of different kinds of internal standards (post-extraction standard addition) was evaluated in four different biological matrices, two microalgae extracts and two marine fish extracts. This study found that the recovery rates were between 70 and 140% of the expected value, with relative standard deviations between 10 and 35%, and then limited matrix effects.•HILIC approach can be used to separate phospholipid according to their polar head-group, and electrospray ionization in negative mode as well as MS/MS allows further identification of the molecular species within each phospholipid class.•Matrix effects are low and compensated with appropriate internal standards.•The limits of quantifications were ranging from 0.05 to 0.14 µg.mL-1, depending on the analyte.
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5
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Qiu J, Craven C, Wawryk N, Carroll K, Li XF. Integration of solid phase extraction with HILIC-MS/MS for analysis of free amino acids in source water. J Environ Sci (China) 2022; 117:190-196. [PMID: 35725070 DOI: 10.1016/j.jes.2022.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 05/07/2023]
Abstract
Amino acids (AAs) are prevalent in source water, particularly during spring run-off. Monitoring of amino acids in source water is desirable for water treatment plants (WTP) to indicate changes in source water quality. The objective of this study was to establish analytical procedures for reliable monitoring of amino acids in source water. Therefore, we examined two different methods, large volume inject (LVI) and solid phase extraction (SPE), for sample preparation prior to HILIC-MS/MS. The LVI-HILIC-MS/MS method can provide fast and sensitive detection for clean samples, but suffers from matrix effects, resulting in irreproducible separation and shortening column lifetime. We have demonstrated that SPE was necessary prior to HILIC-MS/MS to achieve reproducible and reliable quantification of AAs in source water. A natural heterocyclic amine 1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (MTCCA) was also included in the method to indicate changes in other natural nitrogenous compounds in source water. The SPE-HILIC-MS/MS method was able to achieve limits of detection from 2.6-3400 ng/L for the amino acids and MTCCA with RSDs (n=3) of 1.1%-4.8%. As well, retention times (RT) of the analytes were reproducible with variation less than 0.01 min (n=3) through the entire project. We further applied the SPE-HILIC-MS/MS method to determine AAs in authentic source water samples collected from two drinking water treatment plants (WTPs) during the 2021 spring run-off season. The results support that the SPE-HILIC-MS/MS method does not require derivatization and can provide reliable, accurate, and robust analysis of AAs and MTCCA in source water, supporting future monitoring of source water quality.
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Affiliation(s)
- Junlang Qiu
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2G3, Canada; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Caley Craven
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2G3, Canada
| | - Nicholas Wawryk
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2G3, Canada
| | - Kristin Carroll
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2G3, Canada
| | - Xing-Fang Li
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2G3, Canada.
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6
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Huang M, Xu X, Qiu H, Li N. Analytical characterization of DNA and RNA oligonucleotides by hydrophilic interaction liquid chromatography-tandem mass spectrometry. J Chromatogr A 2021; 1648:462184. [PMID: 33991753 DOI: 10.1016/j.chroma.2021.462184] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/28/2021] [Accepted: 04/18/2021] [Indexed: 01/06/2023]
Abstract
Liquid chromatography-mass spectrometry has been widely implemented as a powerful tool for providing in-depth characterization of nucleic acid therapeutic modalities, such as anti-sense oligonucleotides and small interfering RNAs (siRNAs). In this study, we developed a generic hydrophilic interaction liquid chromatography (HILIC) hyphenated with tandem mass spectrometry method in the absence of ion-pairing reagents and demonstrated its capability as an attractive and robust alternative for oligonucleotide and siRNA analysis. HILIC separation of mixtures of unmodified and fully phosphorothioate-modified DNA oligonucleotides and their synthetic 3' exonuclease-digested metabolites were also assessed. High-resolution mass spectrometric (HRMS) analysis was used to determine the deconvoluted masses of oligonucleotide and siRNA standards and their impurities. To enable unbiased sequence characterization with tandem mass spectrometry (MS/MS), we also optimized higher-energy C-trap dissociation (HCD) on improving the sequence coverage of DNA and RNA oligonucleotides. Lastly, we evaluated on-column sensitivity for a phosphorothioate oligonucleotide by performing targeted analysis with either targeted selected ion monitoring (tSIM) or parallel reaction monitoring (PRM). Higher on-column sensitivity of 13 ng, equivalent to 2.0 pmol, of a phosphorothioate oligonucleotide was achieved by tSIM analysis as compared to PRM analysis.
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Affiliation(s)
- Ming Huang
- Regeneron Pharmaceuticals Inc., Tarrytown, NY 10591, USA
| | - Xiaobin Xu
- Regeneron Pharmaceuticals Inc., Tarrytown, NY 10591, USA.
| | - Haibo Qiu
- Regeneron Pharmaceuticals Inc., Tarrytown, NY 10591, USA.
| | - Ning Li
- Regeneron Pharmaceuticals Inc., Tarrytown, NY 10591, USA
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7
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Gao JX, Qin L, Wen SY, Huang XH, Dong XP, Zhou DY, Zhu BW. Simultaneous Determination of Acrylamide, 5-Hydroxymethylfurfural, and Heterocyclic Aromatic Amines in Thermally Processed Foods by Ultrahigh-Performance Liquid Chromatography Coupled with a Q Exactive HF-X Mass Spectrometer. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:2325-2336. [PMID: 33555856 DOI: 10.1021/acs.jafc.0c06743] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, a rapid and reliable method based on ultrahigh-performance liquid chromatography coupled with Q Exactive HF-X mass spectrometry (UHPLC-QE/MS) was established for the simultaneous quantification and validation of acrylamide, 5-hydroxymethylfurfural, and 14 heterocyclic aromatic amines in thermally processed foods. With the optimization of the pretreatment method, all 16 hazardous compounds with different polarities were simultaneously extracted and purified by one-step purification. By studying various acquisition modes in detail, full MS + PRM detection using an electrospray ionization source in the positive mode gives an excellent-shaped chromatographic peak and thereby achieves a better quantitative ability for analytes in the matrix. This method demonstrated good quantification recovery in the range of 68.85-146.42%. The limits of quantification were within the range from 0.1 to 50 ng/mL. With the method proposed, the simultaneous determination of 16 hazardous compounds in different thermally processed foods was successfully applied. The all-fragment-ion approaches at high resolution have the ability to reduce false-positive peak detections arising from peak alignment software in the detection of samples significantly. The proposed isotope dilution UHPLC-QE/MS method was validated and demonstrated to be sensitive, accurate, and precise for the simultaneous quantification of multiple contaminants in one injection.
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Affiliation(s)
- Jing-Xuan Gao
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lei Qin
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Shu-Yao Wen
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xu-Hui Huang
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xiu-Ping Dong
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Da-Yong Zhou
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Bei-Wei Zhu
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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8
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Iturrospe E, Da Silva KM, Talavera Andújar B, Cuykx M, Boeckmans J, Vanhaecke T, Covaci A, van Nuijs ALN. An exploratory approach for an oriented development of an untargeted hydrophilic interaction liquid chromatography-mass spectrometry platform for polar metabolites in biological matrices. J Chromatogr A 2020; 1637:461807. [PMID: 33360078 DOI: 10.1016/j.chroma.2020.461807] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022]
Abstract
The analysis of polar metabolites based on liquid chromatography-mass spectrometry (LC-MS) methods should take into consideration the complexity of interactions in LC columns to be able to cover a broad range of metabolites of key biological pathways. Therefore, in this study, different chromatographic columns were tested for polar metabolites including reversed-phase and hydrophilic interaction liquid chromatography (HILIC) columns. Based on a column screening, two new generations of zwitterionic HILIC columns were selected for further evaluation. A tree-based method optimization was applied to investigate the chromatographic factors affecting the retention mechanisms of polar metabolites with zwitterionic stationary phases. The results were evaluated based on a scoring system which was applied for more than 80 polar metabolites with a high coverage of key human metabolic pathways. The final optimized methods showed high complementarity to analyze a wide range of metabolic classes including amino acids, small peptides, sugars, amino sugars, phosphorylated sugars, organic acids, nucleobases, nucleosides, nucleotides and acylcarnitines. Optimized methods were applied to analyze different biological matrices, including human urine, plasma and liver cell extracts using an untargeted approach. The number of high-quality features (< 30% median relative standard deviation) ranged from 3,755 for urine to 5,402 for the intracellular metabolome of liver cells, showing the potential of the methods for untargeted purposes.
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Affiliation(s)
- Elias Iturrospe
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium; Department of In Vitro Toxicology and Dermato-cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Jette, Belgium.
| | | | - Begoña Talavera Andújar
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium; Cellular Neurobiology and Molecular Chemistry of the Central Nervous System Group, University of Castilla-La Mancha, Calle Almansa 14, 02008 Albacete, Spain
| | - Matthias Cuykx
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium; Laboratory of Clinical Medicine, Antwerp University Hospital, Drie Eikenstraat 655, 2650 Edegem, Belgium
| | - Joost Boeckmans
- Department of In Vitro Toxicology and Dermato-cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Jette, Belgium; Clinical Laboratory, Jessa Hospital, Stadsomvaart 11, 3500 Hasselt, Belgium
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Jette, Belgium
| | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
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Meng X, Bai H, Ma Q, Zhang P, Ma H, Deng Y. Broad targeted analysis of neurochemicals in rat serum using liquid chromatography tandem mass spectrometry with chemical derivatization. J Sep Sci 2020; 43:4006-4017. [PMID: 32866349 DOI: 10.1002/jssc.202000709] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/17/2020] [Accepted: 08/24/2020] [Indexed: 01/12/2023]
Abstract
In this study, an efficient and sensitive assay for the detection of 42 polar neurochemicals, including neurotransmitters, amino acids, and biogenic amines, was established by combining reversed-phase liquid chromatography tandem mass spectrometry with chemical derivatization. An optimally designed benzoyl chloride derivatization was easily conducted in a one-pot reaction and stable neurochemical derivatives were obtained under mild conditions within 5 min (except for acetylcholine and melatonin). Derivatization also enabled the introduction of heavy labeling of the analytes through the use of labeled derivatization agents. Chromatography separation was performed on an HSS T3 column within 15 min by gradient elution. Multiple reaction monitoring acquisition mode enabled quantitation of neurochemicals with limits of detection of 0.05 to 11.63 nM and lower limits of quantitation of 0.09 to 46.50 nM in rat serum. The assay was well validated in terms of linearity and extraction recovery. Furthermore, the instrumental precision, specificity, matrix effect, accuracy, precision, stability, dilution effect, and carry-over effect were also validated. Finally, the overall efficacy of the assay was experimentally tested using serum from six Sprague-Dawley rats. The results demonstrated that the developed method is effective for broad targeted analysis of 42 neurochemicals in serum.
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Affiliation(s)
- Xianshuang Meng
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China.,Chinese Academy of Inspection and Quarantine, Beijing, 100176, P. R. China
| | - Hua Bai
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, P. R. China
| | - Qiang Ma
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, P. R. China
| | - Peng Zhang
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hong Ma
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
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Application of hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry for the retention and sensitivity studies of antisense oligonucleotides. J Chromatogr A 2020; 1622:461100. [PMID: 32359780 DOI: 10.1016/j.chroma.2020.461100] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 11/20/2022]
Abstract
The aim of the present investigation was application of hydrophilic interaction liquid chromatography as an alternative chromatographic approach for the study of antisense oligonucleotides. The influence of several mobile phases, differing with the salt type, their concentration and pH value on the retention and the separation of antisense oligonucleotides has been examined for this purpose. Four different stationary phases were also applied including unmodified silica, silica modified with the use of sulfobetaine groups, polyhydroxy and aminopropyl groups. Such wide range of tested conditions has been useful in better understanding of the retention mechanism of tested compounds. The results obtained during this investigation indicated that greater retention, greater peaks symmetry, as well as more effective separation of oligonucleotides, were obtained for the zwitterionic stationary phase. Moreover, the optimization of tandem mass spectrometry parameters with the use of Central Composite Design was performed and different mobile phases were tested to choose that one, which provided the greatest antisense oligonucleotides peak areas in Multiple Reaction Monitoring mode and consequently, the greatest possible sensitivity. Hydrophilic interaction liquid chromatography was compared with the ion pair chromatography, commonly used in the analysis of oligonucleotides. Both techniques were compared in terms of selectivity of separation as well as the sensitivity of their determination. Obtained results proved that ion pair chromatography provided better results in terms of separation efficiency and peak areas in Multiple Reaction Monitoring for tested conditions. However, these results do not preclude application of hydrophilic interaction liquid chromatography as an alternative chromatographic approach for the oligonucleotides analysis especially when a mobile phase without ion pair reagents is required.
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11
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Sonnenberg RA, Naz S, Cougnaud L, Vuckovic D. Comparison of underivatized silica and zwitterionic sulfobetaine hydrophilic interaction liquid chromatography stationary phases for global metabolomics of human plasma. J Chromatogr A 2019; 1608:460419. [DOI: 10.1016/j.chroma.2019.460419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 01/23/2023]
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12
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Li F, Qiu D, He J, Kang J. Preparation of Novel Zwitterionic Monolith for Capillary Electrochromatography and Nano LC–MS Applications. Chromatographia 2019. [DOI: 10.1007/s10337-019-03823-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Burgos-Gil R, Peris-García E, Ruiz-Angel M, Baeza-Baeza J, García-Alvarez-Coque M. Protocol to compare column performance applied to hydrophilic interaction liquid chromatography. Microchem J 2019. [DOI: 10.1016/j.microc.2019.103973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Evaluating Relative Retention of Polar Stationary Phases in Hydrophilic Interaction Chromatography. SEPARATIONS 2019. [DOI: 10.3390/separations6030042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A large number of polar stationary phases with diverse chemistry have been developed for various applications in hydrophilic interaction chromatography (HILIC). However, column manufacturers employ different testing procedures to evaluate retention of the polar stationary phases. This renders the retention data impossible for comparison and makes it difficult for the users to select the right stationary phase based on retention. We have evaluated 25 polar stationary phases using cytosine and uracil as the model compounds in various mobile phase conditions. These stationary phases show a wide range of retention characteristics for the model compounds. The ranking of the stationary phases does not change drastically with the acetonitrile level in the mobile phase.
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15
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An Improved HILIC HPLC-MS/MS Method for the Determination of β-ODAP and Its α Isomer in Lathyrus sativus. Molecules 2019; 24:molecules24173043. [PMID: 31443372 PMCID: PMC6749377 DOI: 10.3390/molecules24173043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 12/03/2022] Open
Abstract
β-N-Oxalyl-l-α,β-diaminopropionic acid (β-ODAP) is a non-protein amino acid present in Lathyrus sativus (grass pea) and other Lathyrus species, in parallel with its nontoxic isomer, α-ODAP. When consuming grass pea for several months as staple food, β-ODAP may cause neurolathyrism, a motor neuron degeneration syndrome. Therefore, the independent quantification of both ODAP isomers instead of only the total amount in grass pea allows the identification of less toxic varieties and the development of tools to support breeding for improving grass pea quality. In this work, a simple and fast HPLC-MS/MS method was developed without sample derivatization, using a hydrophilic interaction chromatography (HILIC) column and an isocratic gradient of eluents for 18 min, which allowed the determination of both α- and β-ODAP. The proposed method was fully validated and applied to the determination of α- and β-ODAP contents in a diverse collection of 107 grass pea accessions representative of the main grass pea-growing geographical regions in the world, with the prompt identification of contrasting accessions. β-ODAP content in the analyzed grass pea samples ranged from 0.45 ± 0.02 to 6.04 ± 0.45 mg g−1. The moderate correlation found between α- and β-ODAP contents (0.65) in this collection reinforces the importance of the independent quantification of both ODAP isomers.
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Muehlwald S, Rohn S, Buchner N. Evaluating the applicability of a two-dimensional liquid chromatography system for a pesticide multi-screening method. J Chromatogr A 2019; 1599:95-107. [DOI: 10.1016/j.chroma.2019.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 11/25/2022]
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Kartsova LA, Bessonova EA, Somova VD. Hydrophilic Interaction Chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819050058] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Porous graphene decorated silica as a new stationary phase for separation of sulfanilamide compounds in hydrophilic interaction chromatography. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.10.040] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Porcel-Valenzuela M, Huerta F, Morallón E, Montilla F. Affinity of Electrochemically Deposited Sol⁻Gel Silica Films towards Catecholamine Neurotransmitters. SENSORS (BASEL, SWITZERLAND) 2019; 19:s19040868. [PMID: 30791495 PMCID: PMC6412732 DOI: 10.3390/s19040868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/01/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Dopamine, norepinephrine, and epinephrine neurotransmitters can be detected by electrochemical oxidation in conventional electrodes. However, their similar chemical structure and electrochemical behavior makes a difficult selective analysis. In the present work, glassy carbon electrodes have been modified with silica layers, which were prepared by electroassisted deposition of sol⁻gel precursors. These layers were morphologically and compositionally characterized using different techniques, such as field emission scanning electron microscopy (FESEM), TEM, FTIR, or thermogravimetric analysis⁻mass spectrometry (TG-MS). The affinity of silica for neurotransmitters was evaluated, exclusively, by means of electrochemical methods. It was demonstrated that silica adsorbs dopamine, norepinephrine, and epinephrine, showing different interaction with silica pores. The adsorption process is dominated by a hydrogen bond between silanol groups located at the silica surface and the amine groups of neurotransmitters. Because of the different interaction with neurotransmitters, electrodes modified with silica films could be used in electrochemical sensors for the selective detection of such molecules.
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Affiliation(s)
- María Porcel-Valenzuela
- Departmento Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Carretera San Vicente del Raspeig s/n San Vicente del Raspeig, E-03690 Alicante, Spain.
| | - Francisco Huerta
- Departmento Ingenieria Textil y Papelera, Universitat Politecnica de Valencia, Plaza Ferrandiz y Carbonell 1, E-03801 Alcoy, Spain.
| | - Emilia Morallón
- Departmento Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Carretera San Vicente del Raspeig s/n San Vicente del Raspeig, E-03690 Alicante, Spain.
| | - Francisco Montilla
- Departmento Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Carretera San Vicente del Raspeig s/n San Vicente del Raspeig, E-03690 Alicante, Spain.
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Ikegami T. Hydrophilic interaction chromatography for the analysis of biopharmaceutical drugs and therapeutic peptides: A review based on the separation characteristics of the hydrophilic interaction chromatography phases. J Sep Sci 2019; 42:130-213. [DOI: 10.1002/jssc.201801074] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/17/2018] [Accepted: 11/18/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Tohru Ikegami
- Faculty of Molecular Chemistry and Engineering; Kyoto Institute of Technology; Kyoto Japan
- Institute of Pharmaceutical Sciences; Pharmaceutical (Bio-) Analysis; Eberhard-Karls Universität Tübingen; Tübingen Germany
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Craven CB, Joyce CW, Lucy CA. Effect of nature of electrolytes on retention and selectivity in hydrophilic interaction liquid chromatography. J Chromatogr A 2019; 1584:80-86. [DOI: 10.1016/j.chroma.2018.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/10/2018] [Accepted: 11/14/2018] [Indexed: 10/27/2022]
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Hu Y, Cai T, Zhang H, Chen J, Li Z, Qiu H. Poly(itaconic acid)-grafted silica stationary phase prepared in deep eutectic solvents and its unique performance in hydrophilic interaction chromatography. Talanta 2019; 191:265-271. [DOI: 10.1016/j.talanta.2018.08.072] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/22/2018] [Accepted: 08/27/2018] [Indexed: 01/28/2023]
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Chen Q, Zielinski D, Nowak SA. Fast and sensitive method for the determination of trace 1,2,4-triazole and 4-amino-1,2,4-triazole by hydrophilic interaction liquid chromatography (HILIC) in antifungal drug substance. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1485040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Quan Chen
- Global Pharmaceutical Sciences, NCE Analytical Research and Development, AbbVie Inc., North Chicago, Illinois, USA
| | - Dorota Zielinski
- Global Pharmaceutical Sciences, NCE Analytical Research and Development, AbbVie Inc., North Chicago, Illinois, USA
| | - Steven A. Nowak
- Global Pharmaceutical Sciences, NCE Analytical Research and Development, AbbVie Inc., North Chicago, Illinois, USA
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Sensitive LC–MS/MS method for quantitation of levodopa and carbidopa in plasma: application to a pharmacokinetic study. Bioanalysis 2018; 10:1567-1576. [DOI: 10.4155/bio-2018-0112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: The combination of levodopa with carbidopa has been used for treatment of Parkinson's disease being an important therapy in dopamine level control in the brain. Both are very polar compounds becoming a challenge for analysis by LC–MS/MS.Materials & methods: In this work, it was developed and validated a sensitive bioanalytical method by UHPLC–MS/MS for simultaneous levodopa and carbidopa quantification in human plasma using a fast protein precipitation method. Moreover, the bioanalytical method was applied to a pharmacokinetic study in healthy volunteers. Results/Conclusion: The results demonstrated a sensitive and adequate method for application to pharmacokinetic/bioequivalence studies.
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LC–MS/MS Determination of Catecholamines in Urine Using FMOC-Cl Derivatization on Solid-Phase Extraction Cartridge. Chromatographia 2018. [DOI: 10.1007/s10337-018-3610-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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26
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Buszewski B, Skoczylas M. Multi-Parametric Characterization of Amino Acid- and Peptide-Silica Stationary Phases. Chromatographia 2018. [DOI: 10.1007/s10337-018-3569-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qin X, Wang X. Quantification of nucleotides and their sugar conjugates in biological samples: Purposes, instruments and applications. J Pharm Biomed Anal 2018; 158:280-287. [PMID: 29902692 DOI: 10.1016/j.jpba.2018.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 01/23/2023]
Abstract
Nucleotides and their sugar conjugates are fundamental molecules in life, participating in processes of DNA/RNA composition, cell wall build-up, glycosylation reactions, and signal conduction. Therefore, the quantification of these compounds in biological samples significantly benefits the understanding of their functions. However, nucleotides and nucleotide sugars are extremely hydrophilic, causing bad retention and peak symmetry on regular C18 chromatographic columns. To solve this problem, ion-pair (IP) chromatography, ion-exchange (IE) chromatography and hydrophilic interaction chromatography (HILIC) were applied, of which differentiated mechanisms were utilized to increase the retention of the analytes on the stationary phases. IP-HPLC and HILIC were convenient for coupling with many kinds of detectors (ultraviolet, UV or mass spectrometry, MS). Combining these two kinds of techniques, the advantages of better separation and retention were increased, while disadvantages like irreversible adsorption by stationary phases were greatly decreased. Due to the high concentrations of nonvolatile buffer salts used, IE-HPLC was not suitable for MS detectors. Protein precipitation and solid phase extraction were the common methods for sample treatment in the analysis of nucleotides and nucleotide sugars. By carefully optimizing the LCUV or LCMS conditions, high sensitivities could be achieved, and the methods could be applied to the analysis of many kinds of biological samples (cells, tissues, plants, bacteria, etc.). Developing new analyzing techniques may help the utilization of nucleotides and nucleotide sugars in the diagnosis and therapy of diseases.
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Affiliation(s)
- Xuan Qin
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xin Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
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Arase S, Kimura S, Ikegami T. Method optimization of hydrophilic interaction chromatography separation of nucleotides using design of experiment approaches I: Comparison of several zwitterionic columns. J Pharm Biomed Anal 2018; 158:307-316. [PMID: 29909320 DOI: 10.1016/j.jpba.2018.05.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/27/2018] [Accepted: 05/11/2018] [Indexed: 10/16/2022]
Abstract
A systematic method in hydrophilic interaction chromatography (HILIC) was developed for the separation of four monophosphate nucleotides using design of experiment (DOE) approaches. Three HPLC parameters, the buffer concentration (ammonium acetate concentration), gradient time, and temperature, were evaluated within the quality design framework, and the effects on chromatographic parameters were investigated. Four zwitterionic columns (ZIC-HILIC, ZIC-cHILIC, NUCLEODUR HILIC, and PC HILIC) were used to separate four nucleotides, and the HPLC conditions for each column were successfully optimized, although PC HILIC did not give peaks that were suitable for optimization. In addition, it was proved that optimized HPLC conditions differed from column to column even when the same types of zwitterionic sulfobetaine-functionalized columns were applied. This tendency was explained by differences in the separation characteristics of each column, the thickness of the water-enriched layer on the surface of the silica supports, and the pH. DOE for development of the HPLC method provides an effective explanation of the interactions among the variable parameters, especially in HILIC mode. Finally, a robust analytical method could be established by setting the optimum parameters. Among the employed columns, ZIC-cHILIC provided the widest range of suitable analytical conditions. NUCLEODUR HILIC was difficult to build a robust analytical method since the elution order of cytidine monophosphate and guanosine monophosphate was reversed.
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Affiliation(s)
- Shuntaro Arase
- Eisai Co., Ltd., Formulation Research, Pharmaceutical Science & Technology Core Function Unit, Medicine Development Center, Kagamigahara, Gifu, 501-6195, Japan; Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Susumu Kimura
- Eisai Co., Ltd., Formulation Research, Pharmaceutical Science & Technology Core Function Unit, Medicine Development Center, Kagamigahara, Gifu, 501-6195, Japan
| | - Tohru Ikegami
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
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Jha RR, Singh C, Pant AB, Patel DK. Ionic liquid based ultrasound assisted dispersive liquid-liquid micro-extraction for simultaneous determination of 15 neurotransmitters in rat brain, plasma and cell samples. Anal Chim Acta 2018; 1005:43-53. [DOI: 10.1016/j.aca.2017.12.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/28/2017] [Accepted: 12/03/2017] [Indexed: 11/24/2022]
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Shaaban H. High speed hydrophilic interaction liquid chromatographic method for simultaneous determination of selected pharmaceuticals in wastewater using a cyano-bonded silica column. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1429282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Heba Shaaban
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Forgacsova A, Galba J, Garruto RM, Majerova P, Katina S, Kovac A. A novel liquid chromatography/mass spectrometry method for determination of neurotransmitters in brain tissue: Application to human tauopathies. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1073:154-162. [PMID: 29275172 DOI: 10.1016/j.jchromb.2017.12.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 12/29/2022]
Abstract
Neurotransmitters, small molecules widely distributed in the central nervous system are essential in transmitting electrical signals across neurons via chemical communication. Dysregulation of these chemical signaling molecules is linked to numerous neurological diseases including tauopathies. In this study, a precise and reliable liquid chromatography method was established with tandem mass spectrometry detection for the simultaneous determination of aspartic acid, asparagine, glutamic acid, glutamine, γ-aminobutyric acid, N-acetyl-l-aspartic acid, pyroglutamic acid, acetylcholine and choline in human brain tissue. The method was successfully applied to the analysis of human brain tissues from three different tauopathies; corticobasal degeneration, progressive supranuclear palsy and parkinsonism-dementia complex of Guam. Neurotransmitters were analyzed on ultra-high performance chromatography (UHPLC) using an ethylene bridged hybrid amide column coupled with tandem mass spectrometry (MS/MS). Identification and quantification of neurotransmitters was carried out by ESI+ mass spectrometry detection. We optimized sample preparation to achieve simple and fast extraction of all nine analytes. Our method exhibited an excellent linearity for all analytes (all coefficients of determination >0.99), with inter-day and intra-day precision yielding relative standard deviations 3.2%-11.2% and an accuracy was in range of 92.6%-104.3%. The present study, using the above method, is the first to demonstrate significant alterations of brain neurotransmitters caused by pathological processes in the brain tissues of patient with three different tauopathies.
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Affiliation(s)
- Andrea Forgacsova
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy of Comenius University, Odbojarov 10, 832 32, Bratislava, Slovak Republic.
| | - Jaroslav Galba
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy of Comenius University, Odbojarov 10, 832 32, Bratislava, Slovak Republic; AXON Neuroscience R&D Services SE, Dvorakovo nabrezie 10, 811 02, Bratislava, Slovak Republic
| | - Ralph M Garruto
- Graduate Program in Biomedical Anthropology, Departments of Anthropology and Biological Sciences, Binghamton University, Binghamton, NY, USA; Institute of Mathematics and Statistics, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37, Brno, Czech Republic
| | - Petra Majerova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 84510, Bratislava, Slovak Republic; AXON Neuroscience R&D Services SE, Dvorakovo nabrezie 10, 811 02, Bratislava, Slovak Republic
| | - Stanislav Katina
- Institute of Mathematics and Statistics, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37, Brno, Czech Republic
| | - Andrej Kovac
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, 84510, Bratislava, Slovak Republic; Department of Pharmacology and Toxicology, The University of Veterinary Medicine and Pharmacy, Komenskeho 73, 04181, Kosice, Slovak Republic; AXON Neuroscience R&D Services SE, Dvorakovo nabrezie 10, 811 02, Bratislava, Slovak Republic
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González-Ruiz V, Pezzatti J, Roux A, Stoppini L, Boccard J, Rudaz S. Unravelling the effects of multiple experimental factors in metabolomics, analysis of human neural cells with hydrophilic interaction liquid chromatography hyphenated to high resolution mass spectrometry. J Chromatogr A 2017; 1527:53-60. [DOI: 10.1016/j.chroma.2017.10.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 10/16/2017] [Accepted: 10/23/2017] [Indexed: 01/07/2023]
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Taraji M, Haddad PR, Amos RIJ, Talebi M, Szucs R, Dolan JW, Pohl CA. Chemometric-assisted method development in hydrophilic interaction liquid chromatography: A review. Anal Chim Acta 2017; 1000:20-40. [PMID: 29289311 DOI: 10.1016/j.aca.2017.09.041] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/22/2017] [Accepted: 09/24/2017] [Indexed: 02/09/2023]
Abstract
With an enormous growth in the application of hydrophilic interaction liquid chromatography (HILIC), there has also been significant progress in HILIC method development. HILIC is a chromatographic method that utilises hydro-organic mobile phases with a high organic content, and a hydrophilic stationary phase. It has been applied predominantly in the determination of small polar compounds. Theoretical studies in computer-aided modelling tools, most importantly the predictive, quantitative structure retention relationship (QSRR) modelling methods, have attracted the attention of researchers and these approaches greatly assist the method development process. This review focuses on the application of computer-aided modelling tools in understanding the retention mechanism, the classification of HILIC stationary phases, prediction of retention times in HILIC systems, optimisation of chromatographic conditions, and description of the interaction effects of the chromatographic factors in HILIC separations. Additionally, what has been achieved in the potential application of QSRR methodology in combination with experimental design philosophy in the optimisation of chromatographic separation conditions in the HILIC method development process is communicated. Developing robust predictive QSRR models will undoubtedly facilitate more application of this chromatographic mode in a broader variety of research areas, significantly minimising cost and time of the experimental work.
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Affiliation(s)
- Maryam Taraji
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart 7001, Australia
| | - Paul R Haddad
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart 7001, Australia.
| | - Ruth I J Amos
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart 7001, Australia
| | - Mohammad Talebi
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart 7001, Australia
| | - Roman Szucs
- Pfizer Global Research and Development, CT13 9NJ, Sandwich, UK
| | - John W Dolan
- LC Resources, 1795 NW Wallace Rd., McMinnville, OR 97128, USA
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Miękus N, Konieczna L, Kowiański P, Moryś J, Bączek T. HILIC-MS Rat Brain Analysis, A New Approach for the Study of Ischemic Attack. Transl Neurosci 2017; 8:70-75. [PMID: 28828183 PMCID: PMC5558183 DOI: 10.1515/tnsci-2017-0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/19/2017] [Indexed: 02/06/2023] Open
Abstract
Clinicians often rely on selected small molecular compounds from body fluids for the detection, screening or monitoring of numerous life-threatening diseases. Among others, important monoamines - biogenic amines (BAs) - and their metabolites serve as sensitive biomarkers to study the progression or even early detection of on-going brain pathologies or tumors of neuroendocrine origins. Undertaking the task to optimize a reliable method for the simultaneous analysis of the most relevant BAs in biological matrices is of utmost importance for scientists. Hydrophilic interaction liquid chromatography (HILIC) with mass spectrometry (MS) detection provides a specific and sensitive technique for the separation and assessment of several neurotransmitter concentrations in body fluids (blood, urine, tissues). The present study was focused on the optimization of a straightforward, sensitive and reliable method for the simultaneous analysis of the ten most important BAs and their acidic metabolites from homogenates of rat brain tissues by use of HILIC-MS. Here, we present the optimized experimental workflow in terms of sample preparation, buffer compositions, HILIC and MS settings and data analysis. The presented method is reliable, straightforward and sensitive. Our method permits the unbiased, qualitative and quantitative determination of several BAs and their metabolites simultaneously. The optimized method was applied to the analysis of rat brain tissue samples from healthy hemispheres or those with induced transient ischemic attack (TIA). The undertaken pilot study demonstrated that the proposed approach could be applied to reveal the perturbation in neurotransmitters concentration after TIA in rat brains.
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Affiliation(s)
- Natalia Miękus
- Department of Animal and Human Physiology, University of Gdańsk, Wita Stwosza 59, 80-308Gdańsk, Poland.,Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gen. J. Hallera 107, 80-416Gdańsk, Poland
| | - Lucyna Konieczna
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gen. J. Hallera 107, 80-416Gdańsk, Poland
| | - Przemysław Kowiański
- Department of Anatomy and Neurobiology, Medical University of Gdańsk, Dębinki 1, 80-211Gdańsk, Poland
| | - Janusz Moryś
- Department of Anatomy and Neurobiology, Medical University of Gdańsk, Dębinki 1, 80-211Gdańsk, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Gen. J. Hallera 107, 80-416Gdańsk, Poland
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Zestos AG, Kennedy RT. Microdialysis Coupled with LC-MS/MS for In Vivo Neurochemical Monitoring. AAPS JOURNAL 2017; 19:1284-1293. [PMID: 28660399 DOI: 10.1208/s12248-017-0114-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/13/2017] [Indexed: 10/19/2022]
Abstract
Microdialysis is a powerful sampling technique used to monitor small molecules in vivo. Despite the many applications of microdialysis sampling, it is limited by the method of analyzing the resulting samples. An emerging technique for analysis of microdialysis samples is liquid chromatography-tandem mass spectrometry (LC-MS/MS). This technique is highly versatile, allowing multiplexed analysis of neurotransmitters, metabolites, and neuropeptides. Using LC-MS/MS for polar neurotransmitters is hampered by weak retention reverse phase LC columns. Several derivatization reagents have been utilized to enhance separation and resolution of neurochemicals in dialysate samples including benzoyl chloride (BzCl), dansyl chloride, formaldehyde, ethylchloroformate, and propionic anhydride. BzCl reacts with amine and phenol groups so that many neurotransmitters can be labeled. Besides improving separation on reverse phase columns, this reagent also increases sensitivity. It is available in a heavy form so that it can be used to make stable-isotope labeled internal standard for improved quantification. Using BzCl with LC-MS/MS has allowed for measuring as many as 70 neurochemicals in a single assay. With slightly different conditions, LC-MS/MS has also been used for monitoring endocannabinoids. LC-MS/MS is also useful for neuropeptide assay because it allows for highly sensitive, sequence specific measurement of most peptides. These advances have allowed for multiplexed neurotransmitter measurements in behavioral, circuit analysis, and drug effect studies.
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Affiliation(s)
- Alexander G Zestos
- Department of Chemistry, University of Michigan, 930 N. University, Ann Arbor, Michigan, 48109-1055, USA.,Department of Pharmacology, University of Michigan, 2301 MSRB III, 1150 W. Medical Center Dr., Ann Arbor, Michigan, 48109-1055, USA.,Department of Chemistry, American University, 4400 Massachusetts Avenue, NW, Washington, District of Columbia, 20016, USA
| | - Robert T Kennedy
- Department of Chemistry, University of Michigan, 930 N. University, Ann Arbor, Michigan, 48109-1055, USA. .,Department of Pharmacology, University of Michigan, 2301 MSRB III, 1150 W. Medical Center Dr., Ann Arbor, Michigan, 48109-1055, USA.
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36
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Optimized selection of liquid chromatography conditions for wide range analysis of natural compounds. J Chromatogr A 2017; 1504:91-104. [DOI: 10.1016/j.chroma.2017.05.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/25/2022]
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Bláhová L, Kohoutek J, Kadlecová E, Kozáková L, Bláha L. Assessment of non-derivatized β-N-methylamino-l-alanine (BMAA) neurotoxin in free form in urine of patients with nonspecific neurological symptoms. Toxicon 2017; 133:48-57. [PMID: 28428069 DOI: 10.1016/j.toxicon.2017.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 04/13/2017] [Accepted: 04/16/2017] [Indexed: 12/12/2022]
Abstract
The beta-N-methylamino-l-alanine (BMAA) is a non-proteinogenic amino acid discussed to be produced by cyanobacteria forming harmful blooms. Since BMAA is suspected etiological agent in neurodegenerative diseases, there is a need to study and validate whether and in what concentrations can BMAA be present in human tissues. The aim of the present study was to validate analytical and extraction procedures for quantification of non-derivatized BMAA in the urine using liquid chromatography and commercial ELISA Kit. The study was focused on BMAA in different forms - dissolved, protein associated and total. The validated protocol included SPE followed by HILIC MS/MS for analyses of non-derivatized free form of BMAA with a limit of quantification 20 ng/mL. The methods for other BMAA forms (i.e. protein-associated and total) were also assessed but high matrix interferences did not allow their implementation. The method was used for analyses of free BMAA in 23 urine samples from healthy volunteers and psychiatric patients suffering from nonspecific neurological symptoms. Traces of BMAA were suspectedly detected in a single urine sample but they were not unequivocally proved according to all conservative analytical criteria. BMAA was also not confirmed in a repeatedly collected sample from the same person. The evaluated commercial BMAA ELISA Kit (Abraxis) was not suitable for determination of BMAA in extracted urine samples because of systematically highly false positive results. In agreement with recent findings, analyses of BMAA appear to methodologically challenging, and further research on BMAA in human tissues (or its precursors with potency to form BMAA under natural conditions or - eventually - during sample processing) is needed to clarify its potential ethiological role in neurodegenerative diseases.
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Affiliation(s)
- L Bláhová
- Masaryk University, Faculty of Science, RECETOX, Kamenice 753/5, Building A29, CZ62500 Brno, Czech Republic
| | - J Kohoutek
- Masaryk University, Faculty of Science, RECETOX, Kamenice 753/5, Building A29, CZ62500 Brno, Czech Republic
| | - E Kadlecová
- Psychiatric Hospital Písek, Vladislavova 490, CZ39701 Písek, Czech Republic
| | - L Kozáková
- Psychiatric Hospital Písek, Vladislavova 490, CZ39701 Písek, Czech Republic
| | - L Bláha
- Masaryk University, Faculty of Science, RECETOX, Kamenice 753/5, Building A29, CZ62500 Brno, Czech Republic.
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Preparation of a Sulfoalkylbetaine-Based Zwitterionic Monolith with Enhanced Hydrophilicity for Capillary Electrochromatography Separation Applications. Chromatographia 2017. [DOI: 10.1007/s10337-017-3303-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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39
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Prediction of retention in hydrophilic interaction liquid chromatography using solute molecular descriptors based on chemical structures. J Chromatogr A 2017; 1486:59-67. [DOI: 10.1016/j.chroma.2016.12.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/07/2016] [Accepted: 12/11/2016] [Indexed: 11/23/2022]
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40
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Li H, Liu C, Wang Q, Zhou H, Jiang Z. The effect of charged groups on hydrophilic monolithic stationary phases on their chromatographic properties. J Chromatogr A 2016; 1469:77-87. [PMID: 27692647 DOI: 10.1016/j.chroma.2016.09.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 09/21/2016] [Accepted: 09/24/2016] [Indexed: 01/03/2023]
Abstract
In order to investigate the effect of charged groups present in hydrophilic monolithic stationary phases on their chromatographic properties, three charged hydrophilic monomers, i.e. N,N-dimethyl-N-acryloyloxyethyl-N-(3-sulfopropyl)ammonium betaine (SPDA), [2-(acryloyloxy)ethyl]trimethylammonium chloride (AETA), and 3-sulfopropyl acrylate potassium salt (SPA) were co-polymerized with the crosslinker N,N'-methylenebisacrylamide (MBA), respectively. The physicochemical properties of the three resulting charged hydrophilic monolithic columns were evaluated using scanning electron microscopy, ζ-potential analysis and micro-HPLC. High column efficiency was obtained on the three monolithic columns at a linear velocity of 1mm/s using thiourea as test compound. Comparative characterization of the three charged HILIC phases was then carried out using a set of model compounds, including nucleobases, nucleosides, benzoic acid derivatives, phenols, β-blockers and small peptides. Depending on the combination of stationary phase/mobile phase/solute, both hydrophilic interaction and other potential secondary interactions, including electrostatic interaction, hydrogen-bonding interaction, molecular shape selectivity, could contribute to the over-all retention of the analytes. Because of the strong electrostatic interaction provided by the quaternary ammonium groups in the poly (AETA-co-MBA) monolith, this cationic HILIC monolith exhibited the strongest retention for benzoic acid derivatives and small peptides with distorted peak shapes and the weakest retention for basic β-blockers. The sulfonyl groups on the poly (SPA-co-MBA) hydrophilic monolith could provide strong electrostatic attraction and hydrogen bonding for positively charged analytes and hydrogen-donor/acceptor containing analytes, respectively. Therefore, basic drugs, nucleobases and nucleotides exhibited the strongest retention on this anionic monolith. Because of the weak but distinct cation exchange properties of the zwitterionic poly (SPDA-co-MBA) hydrophilic monolith, it exhibited the best separation for most test analytes (including phenols, β-blockers and small peptides) in terms of selectivity, peak shape and analysis time. The poly (AETA-co-MBA) hydrophilic monolithic column provides the best separation of nucleobases and nucleosides. These results could guide the selection and application of these charged HILIC monoliths in the future.
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Affiliation(s)
- Haibin Li
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Chusheng Liu
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Qiqin Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Haibo Zhou
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China.
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China.
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41
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West C, Auroux E. Deconvoluting the effects of buffer salt concentration in hydrophilic interaction chromatography on a zwitterionic stationary phase. J Chromatogr A 2016; 1461:92-7. [DOI: 10.1016/j.chroma.2016.07.059] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/21/2016] [Accepted: 07/22/2016] [Indexed: 11/29/2022]
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42
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Magiera S, Kolanowska A, Baranowski J. Salting-out assisted extraction method coupled with hydrophilic interaction liquid chromatography for determination of selected β-blockers and their metabolites in human urine. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1022:93-101. [DOI: 10.1016/j.jchromb.2016.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 01/19/2023]
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43
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Potential of hydrophilic interaction chromatography for the analytical characterization of protein biopharmaceuticals. J Chromatogr A 2016; 1448:81-92. [DOI: 10.1016/j.chroma.2016.04.056] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 12/27/2022]
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44
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Xiong X, Liu Y. Chromatographic behavior of 12 polar pteridines in hydrophilic interaction chromatography using five different HILIC columns coupled with tandem mass spectrometry. Talanta 2016; 150:493-502. [DOI: 10.1016/j.talanta.2015.12.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 12/21/2015] [Accepted: 12/24/2015] [Indexed: 11/25/2022]
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45
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Periat A, Kohler I, Thomas A, Nicoli R, Boccard J, Veuthey JL, Schappler J, Guillarme D. Systematic evaluation of matrix effects in hydrophilic interaction chromatography versus reversed phase liquid chromatography coupled to mass spectrometry. J Chromatogr A 2016; 1439:42-53. [DOI: 10.1016/j.chroma.2015.09.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/18/2015] [Accepted: 09/11/2015] [Indexed: 01/18/2023]
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46
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Xie B, Liu Y, Zou H, Son Y, Wang H, Wang H, Shao J. Determination of D-glucaric acid and/or D-glucaro-1,4-lacton in different apple varieties through hydrophilic interaction chromatography. Food Chem 2016; 203:1-7. [PMID: 26948581 DOI: 10.1016/j.foodchem.2016.02.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 01/20/2016] [Accepted: 02/01/2016] [Indexed: 11/16/2022]
Abstract
d-Glucaric acid (GA) derivatives exhibit anti-cancerogenic properties in vivo in apples, but quantitative information about these derivatives is limited. Hydrophilic interaction-based HPLC with ultraviolet detection or mass spectrometry was developed to quantify GA and/or D-glucaro-1,4-lacton (1,4-GL) in apples. Although the formation of 1,4-GL from GA could be the prerequisite to exert biological effects in vivo, only a small portion of GA (<5%) was identified and converted to 1,4-GL in the rat stomach. The 1,4-GL content in apples ranged from 0.3 mg/g to 0.9 mg/g, and this amount can substantiate health claims associated with apples. The amount of 1,4-GL was 1.5 times higher in Gala and the ratio of 1,4-GL to GA was lower in Green Delicious apples than those in the other varieties. Our findings suggested that the variety and maturity of apples at harvest are factors that determine 1,4-GL content.
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Affiliation(s)
- Baogang Xie
- Jiangxi Provincial Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, PR China; School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China.
| | - Yalan Liu
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Huiqin Zou
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Yong Son
- State Key Laboratory of Food Science and Technology, Institute for Advanced Study, University of Nanchang, Nanchang 330047, PR China
| | - Huiyun Wang
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Haipeng Wang
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Jianghua Shao
- Jiangxi Provincial Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, PR China.
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47
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Ianni F, Schoubben A, Montesano D, Wauthoz N, Cossignani L, Sardella R, Natalini B. Quantitative assay of capreomycin oleate levels in a drug formulation for inhalation with a fully validated HPLC method. J Pharm Biomed Anal 2016; 120:413-8. [DOI: 10.1016/j.jpba.2015.11.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/19/2015] [Accepted: 11/25/2015] [Indexed: 01/13/2023]
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48
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Konieczna L, Roszkowska A, Niedźwiecki M, Bączek T. Hydrophilic interaction chromatography combined with dispersive liquid–liquid microextraction as a preconcentration tool for the simultaneous determination of the panel of underivatized neurotransmitters in human urine samples. J Chromatogr A 2016; 1431:111-121. [DOI: 10.1016/j.chroma.2015.12.062] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/10/2015] [Accepted: 12/20/2015] [Indexed: 01/01/2023]
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49
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Analytical approach to determining human biogenic amines and their metabolites using eVol microextraction in packed syringe coupled to liquid chromatography mass spectrometry method with hydrophilic interaction chromatography column. Talanta 2015; 150:331-9. [PMID: 26838416 DOI: 10.1016/j.talanta.2015.12.056] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 12/17/2015] [Accepted: 12/20/2015] [Indexed: 11/23/2022]
Abstract
Analysis of biogenic amines (BAs) in different human samples provides insight into the mechanisms of various biological processes, including pathological conditions, and thus may be very important in diagnosing and monitoring several neurological disorders and cancerous tumors. In this work, we developed a simple and fast procedure using a digitally controlled microextraction in packed syringe (MEPS) coupled to liquid chromatography mass spectrometry (LC-MS) method for simultaneous determination of biogenic amines, their precursors and metabolites in human plasma and urine samples. The separation of 12 low molecular weight and hydrophilic molecules with a wide range of polarities was achieved with hydrophilic interaction chromatography (HILIC) column without derivatization step in 12 min. MEPS was implemented using the APS sorbent in semi-automated analytical syringe (eVol(®)) and small volume of urine and plasma samples, 5 0µL and 100 μL, respectively. We evaluated important parameters influencing MEPS efficiency, including stationary phase selection, sample pH and volume, number of extraction cycles, and washing and elution volumes. In optimized MEPS conditions, the analytes were eluted by 3 × 50 μL of methanol with 0.1% formic acid. The chromatographic separation of analytes was performed on XBridge Amide™ BEH analytical column (3.0mm × 100 mm, 3.5 µm) using gradient elution with mobile phase consisting of phase A: 10mM ammonium formate buffer in water pH 3.0 and phase B: 10mM ammonium formate buffer in acetonitrile pH 3.0. The LC-HILIC-MS method was validated and, in optimum conditions, presented good linearity in concentration range within 10-2000 ng/mL for all the analytes with a determination coefficient (r(2)) higher than 0.999 for plasma and urine samples. Method recovery ranged within 87.6-104.3% for plasma samples and 84.2-98.6% for urine samples. The developed method utilizing polar APS sorbent along with polar HILIC column was applied for simultaneous bioanalysis of trace amounts of polar endogenous biogenic amines in real human urine and plasma samples.
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50
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Zou H, Xiang M, Ye X, xiong Y, Xie B, Shao J. Reduction of urinary uric acid excretion in patients with proteinuria. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1006:59-64. [DOI: 10.1016/j.jchromb.2015.10.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 01/30/2023]
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