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Guo N, Bai Z, Jia W, Sun J, Wang W, Chen S, Wang H. Quantitative Analysis of Polysaccharide Composition in Polyporus umbellatus by HPLC-ESI-TOF-MS. Molecules 2019; 24:molecules24142526. [PMID: 31295903 PMCID: PMC6681038 DOI: 10.3390/molecules24142526] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/08/2019] [Accepted: 07/08/2019] [Indexed: 11/16/2022] Open
Abstract
Polyporus umbellatus is a well-known and important medicinal fungus in Asia. Its polysaccharides possess interesting bioactivities such as antitumor, antioxidant, hepatoprotective and immunomodulatory effects. A qualitative and quantitative method has been established for the analysis of 12 monosaccharides comprising polysaccharides of Polyporus umbellatus based on high-performance liquid chromatography coupled with electrospray ionization–ion trap–time of flight–mass spectrometry. The hydrolysis conditions of the polysaccharides were optimized by orthogonal design. The results of optimized hydrolysis were as follows: neutral sugars and uronic acids 4 mol/L trifluoroacetic acid (TFA), 6 h, 120 °C; and amino sugars 3 mol/L TFA, 3 h, 100 °C. The resulting monosaccharides derivatized with 1-phenyl-3-methyl-5-pyrazolone have been well separated and analyzed by the established method. Identification of the monosaccharides was carried out by analyzing the mass spectral behaviors and chromatography characteristics of 1-phenyl-3-methyl-5-pyrazolone labeled monosaccharides. The results showed that polysaccharides in Polyporus umbellatus were composed of mannose, glucosamine, rhamnose, ribose, lyxose, erythrose, glucuronic acid, galacturonic acid, glucose, galactose, xylose, and fucose. Quantitative recoveries of these monosaccharides in the samples were in the range of 96.10–103.70%. This method is simple, accurate, and sensitive for the identification and quantification of monosaccharides, and can be applied to the quality control of Polyporusumbellatus as a natural medicine.
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Affiliation(s)
- Ning Guo
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Zongli Bai
- Kangmei Pharmaceutical Co.Ltd, Puning 515300, China
| | - Weijuan Jia
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jianhua Sun
- Kangmei Pharmaceutical Co.Ltd, Puning 515300, China
| | - Wanwan Wang
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Shizhong Chen
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Hong Wang
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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Sun Q, Li Y, Qin L. Isolation and identification of two unknown impurities from the raw material of clindamycin hydrochloride. J Sep Sci 2014; 37:2682-7. [PMID: 25044425 DOI: 10.1002/jssc.201400166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/22/2014] [Accepted: 07/13/2014] [Indexed: 11/11/2022]
Abstract
Clindamycin hydrochloride belongs to the antibiotic family of lincomycin. It has the same antibacterial spectrum as lincomycin, but the antibacterial activity is four to eight times stronger than that of lincomycin. There have been some adverse reactions in clinical use of clindamycin hydrochloride and its finished drug products. The impurities in drugs are directly related to their safety. In this study, two unknown impurities were isolated from the raw material of clindamycin hydrochloride through various chromatographic methods. Their structures were identified as clindamycin isomer (impurity 1) and dehydroclindamycin (impurity 2) by mass spectrometry and NMR spectroscopy. Both of them were found for the first time. The two impurities exhibit a similar but lower antibacterial activity compared with clindamycin hydrochloride.
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Affiliation(s)
- Qiushi Sun
- Shanghai Institute of Pharmaceutical Industry, Shanghai, P.R. China
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Piñero MY, Bauza R, Arce L, Valcárcel M. Determination of penicillins in milk of animal origin by capillary electrophoresis: Is sample treatment the bottleneck for routine laboratories? Talanta 2014; 119:75-82. [DOI: 10.1016/j.talanta.2013.10.044] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 10/15/2013] [Accepted: 10/21/2013] [Indexed: 10/26/2022]
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Huang H, Hsieh S. Sample stacking for the analysis of penicillins by microemulsion electrokinetic chromatography. Electrophoresis 2008; 29:3905-15. [DOI: 10.1002/elps.200800008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hsi‐Ya Huang
- Department of Chemistry and Center for Nanotechnology, Chung Yuan Christian University, Chung‐Li, Taiwan
| | - Shih‐Huan Hsieh
- Department of Chemistry and Center for Nanotechnology, Chung Yuan Christian University, Chung‐Li, Taiwan
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12 CE in impurity profiling of drugs. CAPILLARY ELECTROPHORESIS METHODS FOR PHARMACEUTICAL ANALYSIS 2008. [DOI: 10.1016/s0149-6395(07)00012-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ghassempour A, Rafati H, Adlnasab L, Bashour Y, Ebrahimzadeh H, Erfan M. Investigation of the solid state properties of amoxicillin trihydrate and the effect of powder pH. AAPS PharmSciTech 2007; 8:E93. [PMID: 18181553 PMCID: PMC2750679 DOI: 10.1208/pt0804093] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Revised: 06/10/2007] [Accepted: 06/11/2007] [Indexed: 11/30/2022] Open
Abstract
The purpose of this research was to investigate some physicochemical and solid-state properties of amoxicillin trihydrate (AMT) with different powder pH within the pharmacopoeia-specified range. AMT batches prepared using Dane salt method with the pH values from 4.39 to 4.97 were subjected to further characterization studies. Optical and scanning electron microscopy showed that different batches of AMT powders were similar in crystal habit, but the length of the crystals increased as the pH increased. Further solid-state investigations using powder x-ray diffraction (PXRD) demonstrated the same PXRD pattern, but the intensity of the peaks raised by the powder pH, indicated increased crystallinity. Differential scanning calorimetry (DSC) studies further confirmed that as the powder pH increased, the crystallinity and, hence, thermal stability of AMT powders increased. Searching for the possible cause of the variations in the solid state properties, HPLC analysis showed that despite possessing the requirements of the United States Pharmacopoeia (USP) for purity/impurity profile, there was a direct relationship between the increase of the powder pH and the purity of AMT, and also decrease in the impurity I (alpha-Hydroxyphenylglycine) concentration in AMT powder. Recrystallization studies confirmed that the powder pH could be controlled by adjusting the pH of the crystallization.
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Affiliation(s)
- Alireza Ghassempour
- />Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, PO Box 19835/389, Tehran, Iran
| | - Hasan Rafati
- />Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, PO Box 19835/389, Tehran, Iran
| | - Laleh Adlnasab
- />Department of Chemistry, Faculty of Science, Shahid Beheshti University, Evin, Tehran, Iran
| | - Yosef Bashour
- />Quality Control Lab., Zakaria Pharmaceutical Company, Tabriz, Iran
| | - Homeira Ebrahimzadeh
- />Department of Chemistry, Faculty of Science, Shahid Beheshti University, Evin, Tehran, Iran
| | - Mohammad Erfan
- />Faculty of Pharmacy, Shahid Beheshti University, Vanak, Tehran, Iran
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Serrano JM, Silva M. Use of SDS micelles for improving sensitivity, resolution, and speed in the analysis of β-lactam antibiotics in environmental waters by SPE and CE. Electrophoresis 2007; 28:3242-9. [PMID: 17854115 DOI: 10.1002/elps.200700016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study dealt with the potential of MEKC with LIF detection involving derivatization with sulfoindocyanine succinimidyl ester (Cy5) for the separation and determination of beta-lactam antibiotics (ampicillin, amoxicillin, cephradine, and cephalexin) in environmental water samples. Water samples of 50 mL were enriched by SPE by passage through a weak base-cation Amberlite(R) IRA-93 exchange column. SDS micelles play important roles in the whole analytical process by improving the yield (sensitivity) and the kinetics of the labeling reaction, the elution of the retained antibiotics from the SPE preconcentration system and the electrophoretic resolution of their Cy5-derivatives. The optimum procedure includes a derivatization step of the antibiotics at 25 degrees C for 10 min and direct injection for MEKC analysis, which is conducted within about 15 min using 15 mM SDS in the running buffer (35 mM sodium borate at pH 9.3). LODs from 30 to 45 ng/L and RSDs (within-day precision) from 3.5 to 5.9% were obtained for the antibiotics in water samples with average recoveries ranging from 96.4 to 99.4%. These results indicate that the method proposed is a straightforward and sensitive tool for the determination of these antibiotics in environmental water samples providing similar quantitative results to those using more expensive equipment like LC-electrospray MS/MS.
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Blanco Gomis D, Sánchez Núñez N, Dolores Gutiérrez Álvarez M. High Speed Liquid Chromatography for In‐Process Control. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600574937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Domingo Blanco Gomis
- a Department of Physical and Analytical Chemistry , University of Oviedo , Oviedo, Spain
| | - Noé Sánchez Núñez
- a Department of Physical and Analytical Chemistry , University of Oviedo , Oviedo, Spain
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Mistry K, Grinberg N. Application of Monolithic Columns in High Performance Liquid Chromatography. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-200052972] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Kavita Mistry
- a Analytical Research Department , Merck & Co., Inc. , Rahway, New Jersey, USA
| | - Nelu Grinberg
- b Boehringer Ingelheim Corp. , Ridgefield, Connecticut, USA
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García-Ruiz C, Marina ML. Recent advances in the analysis of antibiotics by capillary electrophoresis. Electrophoresis 2006; 27:266-82. [PMID: 16421954 DOI: 10.1002/elps.200500430] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this review, the main aspects related to the separation of different groups of antibiotics by CE as well as the different applications reported in the literature from the beginning 2003 till May 2005 will be provided to the readers. Firstly, the experimental conditions employed to achieve the analysis of antibiotics by CE are given. Then, the main applications performed in the pharmaceutical, clinical, food, and environmental fields have been reviewed making emphasis on sample preparation requirements needed in each case. Finally, the main conclusions and future prospects in this field are presented.
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Affiliation(s)
- Carmen García-Ruiz
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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Pappas TJ, Gayton-Ely M, Holland LA. Recent advances in micellar electrokinetic chromatography. Electrophoresis 2005; 26:719-734. [PMID: 15714572 DOI: 10.1002/elps.200410191] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This review contains nearly 200 reference citations, and covers advances in electrokinetic capillary chromatography based on micelles, including stabilized micelle complexes, polymeric and mixed micelles from 2003-2004. Detection strategies, analyte determinations, and applications in micellar electrokinetic capillary chromatography (MEKC) are discussed. Information regarding methods of analyte concentration, analyte specific analyses, and nonstandard micelles has been summarized in tabular form to provide a means of rapid access to information pertinent to the reader.
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Affiliation(s)
- Theron J Pappas
- Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA
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