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Xu M, Zhang H, Tang T, Zhou J, Zhou W, Tan S, He B. Potential and applications of capillary electrophoresis for analyzing traditional Chinese medicine: a critical review. Analyst 2021; 146:4724-4736. [PMID: 34269779 DOI: 10.1039/d1an00767j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Capillary electrophoresis (CE) presents a promising possibility for analyzing traditional Chinese medicine (TCM) due to its low reagent consumption, high analysis speed, and enhanced efficiency. Herein we review the employment of CE for analyzing the effective components in TCM and identifying TCM via a fingerprint. Furthermore, we discuss the application of state-of-the-art capillary electrophoresis modes for screening enzyme inhibitors and investigating the interactions between TCM and plasma proteins. The review concludes with recommendations for future studies and improvements in this field of research. The general development trend identified in this review indicates that the application of CE has significantly improved TCM assay performance.
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Affiliation(s)
- Mengchang Xu
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Hanyong Zhang
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Tong Tang
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Ji Zhou
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Wenhu Zhou
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Songwen Tan
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
| | - Binsheng He
- Academician Workstation, Changsha Medical University, Changsha 410219, China.
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2
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Borate suppresses the scavenging activity of gallic acid and plant polyphenol extracts on DPPH radical: A potential interference to DPPH assay. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109769] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Rojas D, Della Pelle F, Del Carlo M, Compagnone D, Escarpa A. Group VI transition metal dichalcogenides as antifouling transducers for electrochemical oxidation of catechol-containing structures. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2020.106718] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Wang Y, Liu X, Liu S, Zhang Y, Chang F. Multilayered Chemically Modified Electrode Based on Carbon Nanotubes Conglutinated by Polydopamine: A New Strategy for the Electrochemical Signal Enhancement for the Determination of Catechol. ANAL LETT 2020. [DOI: 10.1080/00032719.2019.1695810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yu Wang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Xingli Liu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Silin Liu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Yijia Zhang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - FengXia Chang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
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5
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Elseman AM, Sharmoukh W, Sajid S, Cui P, Ji J, Dou S, Wei D, Huang H, Xi W, Chu L, Li Y, Jiang B, Li M. Superior Stability and Efficiency Over 20% Perovskite Solar Cells Achieved by a Novel Molecularly Engineered Rutin-AgNPs/Thiophene Copolymer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800568. [PMID: 30479917 PMCID: PMC6247057 DOI: 10.1002/advs.201800568] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 09/16/2018] [Indexed: 05/27/2023]
Abstract
Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized mostly with expensive spiro-MeOTAD hole-transporting material. PSCs are demonstrated that achieve stabilized efficiencies exceeding 20% with straightforward low-cost molecularly engineered copolymer poly(1-(4-hexylphenyl)-2,5-di(thiophen-2-yl)-1H-pyrrole) (PHPT-py) based on Rutin-silver nanoparticles (AgNPs) as the hole extraction layer. The Rutin-AgNPs additive enables the creation of compact, highly conformal PHPT-py layers that facilitate rapid carrier extraction and collection. The spiro-MeOTAD-based PSCs show comparable efficiency, although their operational stability is poor. This instability originated from potential-induced degradation of the spiro-MeOTAD/Au contact. The addition of conductive Rutin-AgNPs into PHPT-py layer allows PSCs to retain >97% of their initial efficiency up to 60 d without encapsulation under relative humidity. The PHPT-py/ Rutin-AgNPs-based devices surpass the stability of spiro-MeOTAD-based PSCs and potentially reduce the fabrication cost of PSCs.
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Affiliation(s)
- Ahmed Mourtada Elseman
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
- Electronic & Magnetic Materials DepartmentAdvanced Materials DivisionCentral Metallurgical Research and Development Institute (CMRDI)HelwanP.O. Box 87Cairo11421Egypt
| | - Walid Sharmoukh
- Department of Inorganic ChemistryNational Research CentreDokkiGiza12622Egypt
| | - Sajid Sajid
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Peng Cui
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Jun Ji
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Shangyi Dou
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Dong Wei
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Hao Huang
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Wenkang Xi
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Lihua Chu
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Yingfeng Li
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Bing Jiang
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
| | - Meicheng Li
- State Key Laboratory of Alternate Electrical PowerSystem with Renewable Energy SourcesSchool of Renewable EnergyNorth China Electric Power UniversityBeijing102206China
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Sandeep S, Santhosh AS, Swamy NK, Suresh GS, Melo JS, Chamaraja NA. A biosensor based on a graphene nanoribbon/silver nanoparticle/polyphenol oxidase composite matrix on a graphite electrode: application in the analysis of catechol in green tea samples. NEW J CHEM 2018. [DOI: 10.1039/c8nj02325e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present report demonstrates the development of a Gr/GNRs/AgNPs/PPO composite biosensor for the detection of catechol.
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Affiliation(s)
- Shadakshari Sandeep
- Department of Chemistry
- Sri Jayachamarajendra College of Engineering
- Mysuru-570006
- India
| | | | - Ningappa Kumara Swamy
- Department of Chemistry
- Sri Jayachamarajendra College of Engineering
- Mysuru-570006
- India
| | | | - Jose Savio Melo
- Nuclear Agriculture and Biotechnology Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
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Karpinska J, Świsłocka R, Lewandowski W. A mystery of a cup of coffee; an insight look by chemist. Biofactors 2017; 43:621-632. [PMID: 28613019 DOI: 10.1002/biof.1371] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 05/22/2017] [Indexed: 12/29/2022]
Abstract
Fruits, vegetables as well as processed food products of plant origin are a rich source of beneficial for human health constituents. Among them the polyphenols constitute a large group of compounds. The presented literature survey is devoted to chlorogenic acid the most abundant representative of cinnamate acids esters. Its chemical as well as biological properties are described. © 2017 BioFactors, 43(5):621-632, 2017.
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Affiliation(s)
- Joanna Karpinska
- Institute of Chemistry, University of Bialystok, Bialystok, 15-245, Poland
| | - Renata Świsłocka
- Division of Chemistry, Bialystok University of Technology, Bialystok, 15-351, Poland
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8
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Magnuszewska J, Krogulec T. Application of hot platinum microelectrodes for determination of flavonoids in flow injection analysis and capillary electrophoresis. Anal Chim Acta 2013; 786:39-46. [PMID: 23790290 DOI: 10.1016/j.aca.2013.05.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 04/03/2013] [Accepted: 05/16/2013] [Indexed: 11/28/2022]
Abstract
The determination of quercetin and rutin by flow injection analysis (FIA) and capillary electrophoresis (CE) using electrochemical detection was described. These flavonoids were determined at normal (unheated) and hot platinum microelectrodes using cyclic voltammetry. When quercetin or rutin is reaching the platinum electrode, a change of the current in the region of the platinum oxide formation is observed. Integration of the current changes in this in this region creates analytical signals in the form of peaks. An increase of temperature to about 76°C in a small zone adjacent to the microelectrode causes an increase of the analytical signal by more than 6 times under FIA conditions. This method enables the use of hot microelectrodes as detectors in HPLC or CE. In CE the improvement of the analytical signal at hot microelectrodes is smaller than in FIA and increase only 1.3-3.4 times. Heated microelectrodes were used for analysis of the flavonoids in natural samples of the plant (extract of sea buckthorn) and a pharmaceutical preparation (Cerutin).
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9
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Dmitrienko SG, Kudrinskaya VA, Apyari VV. Methods of extraction, preconcentration, and determination of quercetin. JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1134/s106193481204003x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Del Carlo M, Amine A, Haddam M, della Pelle F, Fusella GC, Compagnone D. Selective Voltammetric Analysis of o-Diphenols from Olive Oil Using Na2MoO4 as Electrochemical Mediator. ELECTROANAL 2012. [DOI: 10.1002/elan.201100603] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Qian X, Zhang Q, Zhang Y, Tu Y. Separation/determination of flavonoids and ascorbic acid in rat serum and excrement by capillary electrophoresis with electrochemical detection. ANAL SCI 2011; 26:557-60. [PMID: 20467130 DOI: 10.2116/analsci.26.557] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A capillary electrophoresis with electrochemical detection was developed for the simultaneous determination of three flavonoids (naringenin, rutin, quercetin) and ascorbic acid. It was found that naringenin, rutin, quercetin and ascorbic acid were well separated within 5 min in borate buffer solution (pH 8.6, 24 mM). The detection limit was 1.0 microM for naringenin, 8.0 microM for rutin, 2.0 microM for ascorbic acid and 0.5 microM for quercetin. The protocol was successfully applied for the determination of the analytes in rat serum and excrement. Recovery results ranged from 90.9 to 108.6%.
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Affiliation(s)
- Xiaomin Qian
- Institute of Analytical Chemistry, Department of Chemistry, Dushu Lake Campus, Suzhou University, Suzhou 215123, P. R. China
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12
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Široká J, Jáč P, Polášek M. Use of inorganic, complex-forming ions for selectivity enhancement in capillary electrophoretic separation of organic compounds. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2010.08.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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14
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Application and potential of capillary electroseparation methods to determine antioxidant phenolic compounds from plant food material. J Pharm Biomed Anal 2010; 53:1130-60. [PMID: 20719447 DOI: 10.1016/j.jpba.2010.07.028] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 07/09/2010] [Accepted: 07/18/2010] [Indexed: 12/17/2022]
Abstract
Antioxidants are one of the most common active ingredients of nutritionally functional foods which can play an important role in the prevention of oxidation and cellular damage inhibiting or delaying the oxidative processes. In recent years there has been an increased interest in the application of antioxidants to medical treatment as information is constantly gathered linking the development of human diseases to oxidative stress. Within antioxidants, phenolic molecules are an important category of compounds, commonly present in a wide variety of plant food materials. Their correct determination is pivotal nowadays and involves their extraction from the sample, analytical separation, identification, quantification and interpretation of the data. The aim of this review is to provide an overview about all the necessary steps of any analytical procedure to achieve the determination of phenolic compounds from plant matrices, paying particular attention to the application and potential of capillary electroseparation methods. Since it is quite complicated to establish a classification of plant food material, and to structure the current review, we will group the different matrices as follows: fruits, vegetables, herbs, spices and medicinal plants, beverages, vegetable oils, cereals, legumes and nuts and other matrices (including cocoa beans and bee products). At the end of the overview, we include two sections to explain the usefulness of the data about phenols provided by capillary electrophoresis and the newest trends.
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Szőke É, Petroianu G, Tekes K, Benkő B, Szegi P, Laufer R, Veress G. HPLC monitoring of the microsomal stability of rutin and quercetin. ACTA CHROMATOGR 2009. [DOI: 10.1556/achrom.21.2009.3.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Cui L, Wen J, Zhou T, Wang S, Fan G. Optimization and validation of an ion-pair RP-HPLC-UV method for the determination of total free iodine in rabbit plasma: application to a pharmacokinetic study. Biomed Chromatogr 2009; 23:1151-9. [PMID: 19444799 DOI: 10.1002/bmc.1237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An ion-pair reverse-phase high performance liquid chromatographic method with UV-vis detection has been developed for the determination of total free iodine in rabbit plasma after vaginal administration of povidone-iodine (PVP-I). Sample preparation was done by protein precipitation with acetonitrile in 96-well format and aspirin was used as the internal standard. The 100 microL sodium thiosulfate solution (5 g L(-1)) was added to 100 microL plasma sample before protein precipitation, to convert the total free iodine in plasma to iodide (I(-)). Separation was performed on a C(18) column (200 x 4.6 mm i.d., 5 microm). The mobile phase consisting of a mixture of water phase (containing 10 mmol L(-1) 18-crown-6 ether, 5 mmol L(-1) octylamine and 5 mmol L(-1) sodium dihydrogen phosphate, pH adjusted to 6.0 with phosphoric acid) and acetonitrile in the ratio 70:30 (v/v) was delivered isocraticly at a flow rate of 1.0 mL min(-1). The method was sensitive with a lower limit of quantification of 0.005 microg mL(-1), with good linearity (r(2) > 0.9990) over the linear range of 0.005-2 microg mL(-1). All the validation data, such as linearity, accuracy and precision, were within the required limits. The method was successfully applied to study the pharmacokinetic of PVP-I in rabbits after vaginal administration.
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Affiliation(s)
- Lijun Cui
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, People's Republic of China
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17
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Biesaga M, Pyrzynska K. Analytical Procedures for Determination of Quercetin and its Glycosides in Plant Material. Crit Rev Anal Chem 2009. [DOI: 10.1080/10408340902820718] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Kumar A, Malik AK, Tewary DK. A new method for determination of myricetin and quercetin using solid phase microextraction-high performance liquid chromatography-ultra violet/visible system in grapes, vegetables and red wine samples. Anal Chim Acta 2008; 631:177-81. [PMID: 19084623 DOI: 10.1016/j.aca.2008.10.038] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Revised: 10/10/2008] [Accepted: 10/10/2008] [Indexed: 11/18/2022]
Abstract
A new approach for the extraction and determination of myricetin and quercetin by using SPME-HPLC-UV system has been developed. The method involves adsorption of flavonoids on CAR/TPR fiber followed by desorption in the desorption chamber of SPME-HPLC interface using citrate buffer (0.001 M):acetonitrile (70:30) as mobile phase and UV detection at 372 nm. The detection limits for myricetin and quercetin are 48.3 and 24.7 pgmL(-1), respectively. The proposed method was validated by determining myricetin and quercetin in tomato, onion, grapes and red wine samples.
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Affiliation(s)
- Ashwini Kumar
- Department of Chemistry, Punjabi University, Patiala 147 002, India
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Low-temperature bath/high-conductivity zone/stacking micellar electrokinetic chromatography for the analysis of phenolic acids in coffee drink. J Chromatogr A 2008; 1212:137-44. [DOI: 10.1016/j.chroma.2008.10.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2008] [Revised: 10/06/2008] [Accepted: 10/07/2008] [Indexed: 11/23/2022]
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20
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Ganzera M. Quality control of herbal medicines by capillary electrophoresis: Potential, requirements and applications. Electrophoresis 2008; 29:3489-503. [DOI: 10.1002/elps.200700901] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Wei W, Yin XB, He XW. pH-mediated dual-cloud point extraction as a preconcentration and clean-up technique for capillary electrophoresis determination of phenol and m-nitrophenol. J Chromatogr A 2008; 1202:212-5. [DOI: 10.1016/j.chroma.2008.07.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2008] [Revised: 07/01/2008] [Accepted: 07/08/2008] [Indexed: 11/17/2022]
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22
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Jin GP, Peng X, Chen QZ. Preparation of Novel Arrays Silver Nanoparticles Modified Polyrutin Coat-Paraffin-Impregnated Graphite Electrode for Tyrosine and Tryptophan's Oxidation. ELECTROANAL 2008. [DOI: 10.1002/elan.200704084] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Jáč P, Polášek M, Batista AIV, Kaderová L. Tungstate as complex-forming reagent facilitating separation of selected polyphenols by capillary electrophoresis and its comparison with borate. Electrophoresis 2008; 29:843-51. [DOI: 10.1002/elps.200700598] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Yang GJ, Liu P, Qu XL, Xu MJ, Qu QS, Wang CY, Hu XY, Wang ZY. The simultaneous separation and determination of six flavonoids and troxerutin in rat urine and chicken plasma by reversed-phase high-performance liquid chromatography with ultraviolet–visible detection. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 856:222-8. [PMID: 17588830 DOI: 10.1016/j.jchromb.2007.06.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2007] [Revised: 05/31/2007] [Accepted: 06/05/2007] [Indexed: 11/26/2022]
Abstract
The method of high-performance liquid chromatography (HPLC) with UV-vis detection was used and validated for the simultaneous determination of six flavonoids (puerarin, rutin, morin, luteolin, quercetin, kaempferol) and troxerutin in rat urine and chicken plasma. Chromatographic separation was performed using a VP-ODS column (150 mm x 4.6 mm, 5.0 microm) maintained at 35.0 degrees C. The mobile phase was a mixture of water, methanol and acetic acid (57:43:1, v/v/v, pH 3.0) at the flow rate of 0.8 mL/min. Six flavonoids and troxerutin were analyzed simultaneously with good separation. On optimum conditions, calibration curves were found to be linear with the ranges of 0.10-70.00 microg/mL (puerarin, rutin, morin, luteolin, quercetin, kaempferol) and 0.50-350.00 microg/mL (troxerutin). The detection limits were 0.010-0.050 microg/mL. The method was validated for accuracy and precision, and it was successfully applied to determine drug concentrations in rat urine and chicken plasma samples from rat and chicken that had been orally administered with six flavonoids and troxerutin.
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Affiliation(s)
- Gong-Jun Yang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China.
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25
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Risso ÉM, Péres RG, Amaya-Farfan J. Determination of phenolic acids in coffee by micellar electrokinetic chromatography. Food Chem 2007. [DOI: 10.1016/j.foodchem.2007.03.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Mousty C, Cosnier S, Sanchez-Paniagua Lopez M, Lopez-Cabarcos E, Lopez-Ruiz B. Rutin Determination at an Amperometric Biosensor. ELECTROANAL 2007. [DOI: 10.1002/elan.200603718] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Li P, Li SP, Wang YT. Optimization of CZE for analysis of phytochemical bioactive compounds. Electrophoresis 2006; 27:4808-19. [PMID: 17136720 DOI: 10.1002/elps.200600219] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Advantages of CZE such as high efficiency, low cost, short analysis time, and easy implementation result in its wide applications for analysis of phytochemical bioactive compounds (e.g. flavonoids, alkaloids, terpenoids, phenolic acid, saponins, anthraquinones and coumarins). However, several aspects, including sample preparation, separation, and detection have significant effects on CZE analysis. Therefore, optimization of these procedures is necessary for development of the method. In this review, sample preparation such as extraction method and preconcentration, separation factors including buffer type, concentration and pH, additives, voltage and temperature, as well as detection, e.g. direct and indirect UV detection, LIF and MS were discussed for optimization of CZE analysis on phytochemical bioactive compounds. The optimized strategies were also reviewed.
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Affiliation(s)
- Peng Li
- Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
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Hamoudová R, Pospísilová M, Spilková J. Analysis of selected constituents in methanolic extracts ofHypericum perforatum collected in different localities by capillary ITP-CZE. Electrophoresis 2006; 27:4820-6. [PMID: 17136721 DOI: 10.1002/elps.200600193] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The on-line combination of CZE with capillary ITP (ITP-CZE) was used for the separation and quantification of selected flavonoids and phenolic acids in Hypericum perforatum leaves and flowers collected in six different localities in Slovakia. The leading electrolyte in the ITP preseparation step was 10 mM HCl with Tris as counterion (pH* 7.2). The terminating electrolyte was 50 mM boric acid of pH* 8.2 (adjusted with barium hydroxide). The BGE in the electrophoretic step contained 25 mM beta-hydroxy-4-morpholinopropanesulfonic acid (MOPSO), 50 mM Tris, 65 mM boric acid, pH* 8.3. The content of methanol in all electrolytes was 20% v/v. The total time of the analysis (including the preseparation step) was approximately 35 min. The rectilinear calibration ranges were between 0.125 and 5.0 microg/mL with kaempferol as internal standard. The correlation coefficients ranged between 0.9912 (for quercitrin and chlorogenic acid) and 0.9988 (for isoquercitrin). The RSD values are between 0.86 and 7.78% (n = 6) when determining rutin and quercetin (4 microg/mL). The optimized method was employed for the assay of flavonoids in medicinal plant extract of different collections of Hypericum perforatum haulm. The variability of the content of the active components depending on the place of collection was confirmed.
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Affiliation(s)
- Rafífa Hamoudová
- Department of Analytical Chemistry, Charles University, Faculty of Pharmacy, Hradec Králové, Czech Republic.
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