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Gutenev KS, Statkus MA, Tsizin GI. HPLC Separation of Carboxylic Acids Using Porous Graphitized Carbon and Gradient Elution with Formic Acid Solutions. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822100069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zipaev DV, Makushin AN, Kuraeva JG. Studies of organic acids in millet grain and products of its processing by capillary electrophoresis. BIO WEB OF CONFERENCES 2020. [DOI: 10.1051/bioconf/20201700039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Studying the properties of raw materials during various treatments allows expanding the possibilities of its use in related industries of the food industry due to changes in its chemical composition. This work is devoted to the analysis of the use of the method of capillary electrophoresis to study organic acids in a heat-prone grain of millet and millet malt.
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Horská J, Ševčík J, Petr J. Determination of citrate released from stabilized gold nanoparticles by capillary zone electrophoresis. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0291-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Antonio AL, Pereira E, Pinela J, Heleno S, Pereira C, Ferreira IC. Determination of Antioxidant Compounds in Foodstuff. Food Saf (Tokyo) 2016. [DOI: 10.1002/9781119160588.ch6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Jefferson WA, Hu C, Liu H, Qu J. Reaction of aqueous Cu-Citrate with MnO2 birnessite: characterization of Mn dissolution, oxidation products and surface interactions. CHEMOSPHERE 2015; 119:1-7. [PMID: 25460741 DOI: 10.1016/j.chemosphere.2014.04.039] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 04/08/2014] [Accepted: 04/17/2014] [Indexed: 06/04/2023]
Abstract
Citric acid, a widespread soil rhizosphere plant/microbe carboxylic acid exudate can easily form chelates with heavy metals, increasing their availability in the environment. When Cu(II) from algal control in water bodies or reservoirs and fungicides, such as the Bordeaux mixture, and citrate interact, solubilization through chelation is a possible outcome. Manganese (hydr)oxides represent a significant portion of the subsurface environment and can affect the fate and transport of chemical species through adsorption and oxidation. This study explores the possible interaction between MnO2 and Cu-Citrate under ambient oxic conditions. The calculated Mn(II) dissolution rates during the initial 1h of reaction followed the series Cu(II)>Cu-Citrate 1:0.5>Cu-Citrate 1:1(oxic)>Citrate>Cu-Citrate 1:1(Anoxic), reinforcing the central role of (complexed or un-complexed) Cu(II) during the initial surface-coordination instead of following the s-shaped auto-catalytic curves of Mn(II) dissolution in citrate solution. The use of capillary electrophoresis allowed the detection of an intermediate Cu(II)Acetonedicarboxylate complex and the oxidation products acetonedicarboxylate, acetoacetate, acetone and acetic acid. The mass balance analysis of Cu-Citrate 1:1 suggests the partial adsorption of Cu-Citrate(ads) and catalytic degradation of acetonedicarboxylate through a MnO2-Cu surface sorbed complex. Lastly, XPS analysis confirmed the MnO2 surface Cu(II) reduction along with an outer-hydration layer at the MnO2 interface, where electron transfer and aquo ligand exchange may lead to the oxidation of Cu-Citrate.
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Affiliation(s)
- William A Jefferson
- Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengzhi Hu
- Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Huijuan Liu
- Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jiuhui Qu
- Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Wang S, Fan CQ, Wang P. Determination of ultra-trace organic acids in Masson pine (Pinus massoniana L.) by accelerated solvent extraction and liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 981-982:1-8. [PMID: 25594951 DOI: 10.1016/j.jchromb.2014.12.011] [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: 09/22/2014] [Revised: 12/12/2014] [Accepted: 12/14/2014] [Indexed: 01/18/2023]
Abstract
An accelerated solvent extraction (ASE)-solid-phase extraction (SPE)-liquid chromatography with electrospray ionization-tandem mass spectrometry (ASE-SPE-LC-ESI-MS/MS) methodology was developed for the extraction, cleanup and quantification of ultra-trace organic acids in Masson pine (Pinus massoniana L.) tissues. The separation was carried out on a Bio-Rad Aminex HPX-87H sulfonic column with an eluent containing 5 mmol L(-1) H₂SO₄ at a flow rate of 0.5 mL min(-1). A linear ion trap mass spectrometer equipped with electrospray ionization (ESI) source was operated in negative ion mode, and the six organic acids were eluted within 20 min. ASE extraction, SPE cleanup and LC-ESI-MS/MS analysis conditions were optimized to obtain reliable information about plant organic acid composition. Selective reaction monitoring (SRM) was employed for quantitative measurement. Intra-day precisions averaged 6.7%, and inter-day precisions were 2.1-10.7% for organic acid measurements in the pine samples. External standard calibration curves were linear over the range of 16.5-5000 ng L(-1), and detection limits based on a signal-to-noise ratio of three were at 0.5-5.0 ng L(-1). The results obtained showed the sensibility of the method was better than that of previously described HPLC methodology, and had no significant matrix effect. The proposed ASE-SPE-LC-ESI-MS/MS method is sensitive and reliable for the determination of ultra-trace organic acids in plant samples, despite the presence of the particularly complex matrix.
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Affiliation(s)
- Shuiliang Wang
- College of Biology and Environment, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - China Q Fan
- Gas Technology Institute, 1700 S. Mt. Prospect Road, Des Plaines, IL 60018, USA
| | - Ping Wang
- College of Biology and Environment, Nanjing Forestry University, Nanjing 210037, People's Republic of China.
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Liu FJ, Ding GS, Tang AN. Simultaneous separation and determination of five organic acids in beverages and fruits by capillary electrophoresis using diamino moiety functionalized silica nanoparticles as pseudostationary phase. Food Chem 2014; 145:109-14. [DOI: 10.1016/j.foodchem.2013.08.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 08/04/2013] [Accepted: 08/07/2013] [Indexed: 11/25/2022]
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Pereira C, Barros L, Carvalho AM, Ferreira ICFR. Use of UFLC-PDA for the Analysis of Organic Acids in Thirty-Five Species of Food and Medicinal Plants. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9548-6] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Vaz FAS, da Silva PA, Passos LP, Heller M, Micke GA, Costa ACO, de Oliveira MAL. Optimisation of a capillary zone electrophoresis methodology for simultaneous analysis of organic aliphatic acids in extracts of Brachiaria brizantha. PHYTOCHEMICAL ANALYSIS : PCA 2012; 23:569-575. [PMID: 22407535 DOI: 10.1002/pca.2355] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 01/13/2012] [Accepted: 01/18/2012] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Aluminum toxicity is commonly verified in acidic soils, and poses a severe limitation to plant growth and development. Therefore, Al complexation by the root system mucilage, Al complexation by organic compounds that are exuded by the roots and internal metabolic processes must be monitored by organic acids (OA), since they play a central role in these aluminum tolerance mechanisms. OBJECTIVE To optimise a capillary zone electrophoresis method able to perform simultaneous separation of acetic, citric, formic, lactic, malic, oxalic, pyruvic, succinic, tartaric and aspartic acid in plant extract solutions. METHODOLOGY Method optimisation was achieved by a chemometric approach through experimental designs. The optimal condition found was: 20 mmol/L phthalic acid buffer; 0.8 mmol/L cetyltrimethyl-ammonium bromide; pH 3.4 adjusted with tris(hydroxymethyl)aminomethane (around 16 mmol/L); -15 kV of voltage; 25 °C of cartridge temperature; indirect ultraviolet detection at 240 nm; and 25 mbar injection for 2 s, within an analysis time of 4 min. RESULTS As a repeatability test of the optimal condition, 30 replicates were carried out with the same working electrolyte, where the relative standard deviation of each peak ranged from 0.081 to 0.36% (for migration time) and from 2.4 to 4.6% (for peak area). CONCLUSION The methodology was successfully applied to simultaneously determine citric, malic and aspartic acid in roots and leaves extract solutions of Brachiaria brizantha, demonstrating its usefulness to study aluminum tolerance.
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Golubenko AM, Nikonorov VV, Nikitina TG. Determination of hydroxycarboxylic acids in food products by capillary electrophoresis. JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1134/s1061934812090055] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jin MC, Chen XH, Cai MQ, Zhu Y. Eluent Generator Reagent Free Ion Chromatography with Electrospray Ionization Mass Spectrometry for Simultaneous Analysis of Organic Acids in Juices and Beverages. ANAL LETT 2010. [DOI: 10.1080/00032711003698812] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Fernández-Fernández R, López-Martínez JC, Romero-González R, Martínez-Vidal JL, Alarcón Flores MI, Garrido Frenich A. Simple LC–MS Determination of Citric and Malic Acids in Fruits and Vegetables. Chromatographia 2010. [DOI: 10.1365/s10337-010-1611-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Schober TJ, Bean SR, Wang D. Capillary Electrophoresis as a Tool for Evaluating Lactic Acid Production from Sorghum. Cereal Chem 2009. [DOI: 10.1094/cchem-86-2-0117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- T. J. Schober
- USDA-ARS GMPRC, 1515 College Ave., Manhattan, KS 66502. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable
- Corresponding author. Phone: 785-776-2708. Fax: 785-537-5534. E-mail:
| | - S. R. Bean
- USDA-ARS GMPRC, 1515 College Ave., Manhattan, KS 66502. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable
| | - D. Wang
- Dept. Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506
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Wei W, Sun R, Wei Z, Zhao H, Li H, Hu F. Elimination of the Interference from Nitrate Ions on Oxalic Acid in RP-HPLC by Solid-Phase Extraction with Nanosized Hydroxyapatite. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802548705] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Wei Wei
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
| | - Rong Sun
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
| | - Zhenggui Wei
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
| | - Haiyan Zhao
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
| | - Huixin Li
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
| | - Feng Hu
- a College of Resources and Environmental Sciences, Nanjing Agricultural University , Nanjing, P. R. China
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Ligor M, Jarmalaviciene R, Szumski M, Maruška A, Buszewski B. Determination of volatile and non-volatile products of milk fermentation processes using capillary zone electrophoresis and solid phase microextraction coupled to gas chromatography. J Sep Sci 2008; 31:2707-13. [DOI: 10.1002/jssc.200800183] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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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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Muensritharam L, Tolieng V, Chaichantipyuth C, Petsom A, Nhujak T. Capillary zone electrophoresis for separation and analysis of hydroxycitric acid and hydroxycitric acid lactone: Application to herbal products of Garcinia atroviridis Griff. J Pharm Biomed Anal 2008; 46:577-82. [DOI: 10.1016/j.jpba.2007.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Revised: 11/03/2007] [Accepted: 11/08/2007] [Indexed: 11/29/2022]
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Law WS, Zhao JH, Hauser PC, Yau Li SF. Capillary electrophoresis with capacitively coupled contactless conductivity detection for low molecular weight organic acids in different samples. J Sep Sci 2007; 30:3247-54. [DOI: 10.1002/jssc.200700306] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bylund D, Norström SH, Essén SA, Lundström US. Analysis of low molecular mass organic acids in natural waters by ion exclusion chromatography tandem mass spectrometry. J Chromatogr A 2007; 1176:89-93. [DOI: 10.1016/j.chroma.2007.10.064] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Revised: 10/18/2007] [Accepted: 10/24/2007] [Indexed: 10/22/2022]
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Guo BY, Peng ZL, Han F, Shan XQ, Lin JM. Study of low-molecular weight organic acids in maize roots under the stress of cadmium using capillary zone electrophoresis. J Sep Sci 2007; 30:2742-7. [PMID: 17823895 DOI: 10.1002/jssc.200700207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An indirect CE method was developed for the study of low-molecular weight organic acids (LMWOAs) in maize under the stress of cadmium. The influences of indirect reagents (phthalate, salicylic acid, and benzoic acid), coion concentration, and pH were studied. A buffer composed of 15 mmol/L benzoate and 0.2 mmol/L CTAB (pH 5.7) was used in the organic acid determination. The detection limit ranged between 0.5 and 6 micromol/L. The RSD (n = 14) of the method was found to be in the range of 0.11-0.49% for migration time and 1.25-4.72% for peak area. In the maize roots, obvious increases of LMWOAs were observed when the plants were under the stress of cadmium and/or organic acids. The recovery of standard organic acids added in real samples ranged from 85 to 116%.
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Affiliation(s)
- Bao-Yuan Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
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Xu Y, Wang W, Li SFY. Simultaneous determination of low-molecular-weight organic acids and chlorinated acid herbicides in environmental water by a portable CE system with contactless conductivity detection. Electrophoresis 2007; 28:1530-9. [PMID: 17427260 DOI: 10.1002/elps.200600654] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This report describes a method to simultaneously determine 11 low-molecular-weight (LMW) organic acids and 16 chlorinated acid herbicides within a single run by a portable CE system with contactless conductivity detection (CCD) in a poly(vinyl alcohol) (PVA)-coated capillary. Under the optimized condition, the LODs of CE-CCD ranged from 0.056 to 0.270 ppm, which were better than for indirect UV (IUV) detection of the 11 LMW organic acids or UV detection of the 16 chlorinated acid herbicides. Combined with an on-line field-amplified sample stacking (FASS) procedure, sensitivity enhancement of 632- to 1078-fold was achieved, with satisfactory reproducibility (RSDs of migration times less than 2.2%, and RSDs of peak areas less than 5.1%). The FASS-CE-CCD method was successfully applied to determine the two groups of acidic pollutants in two kinds of environmental water samples. The portable CE-CCD system shows advantages such as simplicity, cost effectiveness, and miniaturization. Therefore, the method presented in this report has great potential for onsite analysis of various pollutants at the trace level.
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Affiliation(s)
- Yan Xu
- Department of Chemistry, National University of Singapore, Singapore, Republic of Singapore
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Guan Y, Wang W, Zu Y, Fu Y, Liu J. Capillary zone electrophoresis method for fingerprint of allantoic fluid in normal and infected SPF embryonated chicken eggs. J Virol Methods 2007; 139:12-6. [PMID: 17055591 DOI: 10.1016/j.jviromet.2006.08.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Revised: 08/14/2006] [Accepted: 08/29/2006] [Indexed: 10/24/2022]
Abstract
A capillary zone electrophoresis method was developed for fingerprint determination of allantoic fluid in specific pathogen free (SPF) embryonated chicken eggs. The effects of some crucial parameters, such as buffer type, pH, wavelength and running voltage on the separation were studied systematically. The components of the allantoic fluid were well separated using a fused-silica uncoated capillary with an effective length of 50 cm and an internal diameter of 50 microm. One hundred millimolars sodium tetraborate buffer containing 20 mM sodium dihydrogen phosphate with a final pH 9.8 was used as a running buffer. Comparative fingerprints of allantoic fluid in normal and infected with infectious bronchitis virus (IBV) SPF embryonated chicken eggs were also evaluated. The results showed that there were significant differences between composition of normal allantoic fluid and allantoic fluid infected with IBV, which led to different migration behavior. This method was shown to be stable and reproducible with a relative standard deviation of less than 5% for both migration time and peak current.
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Affiliation(s)
- Yang Guan
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Hexing Road 26, 150040 Harbin, China
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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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Whitaker G, Kincaid BJ, Raftery DP, Van Hoof N, Regan F, Smyth MR, Leonard RG. Potential of CE for the determination of inorganic and acidic anions in cyanoacrylate adhesives. Electrophoresis 2006; 27:4532-7. [PMID: 17058309 DOI: 10.1002/elps.200600247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this work, a CZE method with indirect UV detection was developed for the simultaneous determination of the inorganic and acidic anions, chloride, sulfate, nitrate, fluoride, formate, phosphate, diethylphosphate, methyl sulfonate, cyanoacetate, and methacrylate present in cyanoacrylate adhesives. Chromate was employed as the probe ion, and the EOF was reversed by incorporating CTAB into BGE. Detection limits of 0.7-4.6 microg/mL were obtained for all the anions studied. The CE method developed is a significant improvement on traditionally used chromatographic methods such as ion chromatography, as it resulted in shorter analysis times with enhanced separation efficiencies. This method was successfully employed for the analysis of inorganic and acidic anions in cyanoacrylate adhesive samples.
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Affiliation(s)
- Gillian Whitaker
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
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Mato I, Suárez-Luque S, Huidobro JF. A review of the analytical methods to determine organic acids in grape juices and wines. Food Res Int 2005. [DOI: 10.1016/j.foodres.2005.04.007] [Citation(s) in RCA: 154] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lan-Hua W, Yong-Bing H, Jin-Long W, Hai-Juan Q, Kuo-Xi X, Ling-Zhi M. Color Responses of a Tripodal Colorimetric Sensor toward Anions. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200590608] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Agarwal L, Isar J, Saxena RK. Rapid screening procedures for identification of succinic acid producers. ACTA ACUST UNITED AC 2005; 63:24-32. [DOI: 10.1016/j.jbbm.2005.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2004] [Revised: 01/17/2005] [Accepted: 01/21/2005] [Indexed: 11/16/2022]
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Sato S, Soga T, Nishioka T, Tomita M. Simultaneous determination of the main metabolites in rice leaves using capillary electrophoresis mass spectrometry and capillary electrophoresis diode array detection. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2004; 40:151-63. [PMID: 15361149 DOI: 10.1111/j.1365-313x.2004.02187.x] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The study of the metabolomics of primary metabolites using conventional chemical analyses requires a high-throughput method. Chemical derivatizations are a prerequisite for gas-chromatographic separation, and a large sample quantity is needed for liquid-chromatographic separation and nuclear magnetic resonance detection systems. Recently, we have developed a capillary electrophoresis-mass spectrometry (CE-MS) technology that can simultaneously quantify a large number of primary metabolites, using only a small quantity of samples, and without any chemical derivatizations. Parallel use of a capillary electrophoresis-diode array detector (CE-DAD) system further enables almost all water-soluble intracellular metabolites to be analyzed. We demonstrate, with rice leaves, a simple and rapid method of sample preparation for CE analysis; using this method, we have successfully measured the levels of 88 main metabolites involved in glycolysis, the tricarboxylic acid cycle, the pentose phosphate pathway, photorespiration, and amino acid biosynthesis.
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Affiliation(s)
- Shigeru Sato
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0035, Japan
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Frı́as S, Sánchez M, Rodrı́guez M. Determination of triazine compounds in ground water samples by micellar electrokinetic capillary chromatography. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2003.10.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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