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Liquid-Chromatographic Methods for Carboxylic Acids in Biological Samples. Molecules 2020; 25:molecules25214883. [PMID: 33105855 PMCID: PMC7660098 DOI: 10.3390/molecules25214883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022] Open
Abstract
Carboxyl-bearing low-molecular-weight compounds such as keto acids, fatty acids, and other organic acids are involved in a myriad of metabolic pathways owing to their high polarity and solubility in biological fluids. Various disease areas such as cancer, myeloid leukemia, heart disease, liver disease, and lifestyle diseases (obesity and diabetes) were found to be related to certain metabolic pathways and changes in the concentrations of the compounds involved in those pathways. Therefore, the quantification of such compounds provides useful information pertaining to diagnosis, pathological conditions, and disease mechanisms, spurring the development of numerous analytical methods for this purpose. This review article addresses analytical methods for the quantification of carboxylic acids, which were classified into fatty acids, tricarboxylic acid cycle and glycolysis-related compounds, amino acid metabolites, perfluorinated carboxylic acids, α-keto acids and their metabolites, thiazole-containing carboxylic acids, and miscellaneous, in biological samples from 2000 to date. Methods involving liquid chromatography coupled with ultraviolet, fluorescence, mass spectrometry, and electrochemical detection were summarized.
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De Acha N, Elosúa C, Corres JM, Arregui FJ. Fluorescent Sensors for the Detection of Heavy Metal Ions in Aqueous Media. SENSORS 2019; 19:s19030599. [PMID: 30708989 PMCID: PMC6386841 DOI: 10.3390/s19030599] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/17/2019] [Accepted: 01/23/2019] [Indexed: 12/17/2022]
Abstract
Due to the risks that water contamination implies for human health and environmental protection, monitoring the quality of water is a major concern of the present era. Therefore, in recent years several efforts have been dedicated to the development of fast, sensitive, and selective sensors for the detection of heavy metal ions. In particular, fluorescent sensors have gained in popularity due to their interesting features, such as high specificity, sensitivity, and reversibility. Thus, this review is devoted to the recent advances in fluorescent sensors for the monitoring of these contaminants, and special focus is placed on those devices based on fluorescent aptasensors, quantum dots, and organic dyes.
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Affiliation(s)
- Nerea De Acha
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
| | - César Elosúa
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Jesús M Corres
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Francisco J Arregui
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
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Dong X, Liu X, Chen X. Synthesis of toluene-4-sulfonic acid 2-(2-thiophen-2-yl-phenanthro[9,10- d]imidazol-1-yl)-ethyl ester and its application for sensitive determination of free fatty acids in ginkgo nut and ginkgo leaf by high performance liquid chromatography with fluorescence detection. RSC Adv 2018; 8:18549-18559. [PMID: 35541139 PMCID: PMC9080538 DOI: 10.1039/c8ra01875h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 05/09/2018] [Indexed: 11/02/2022] Open
Abstract
A highly sensitive HPLC-FL method to determine fatty acids was developed utilizing TSTPE as a novel fluorescent labeling reagent.
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Affiliation(s)
- Xiuli Dong
- School of Pharmacy
- Binzhou Medical University
- Yantai
- P. R. China
| | - Xueying Liu
- School of Pharmacy
- Binzhou Medical University
- Yantai
- P. R. China
| | - Xiangming Chen
- School of Pharmacy
- Binzhou Medical University
- Yantai
- P. R. China
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Mortensen A, Aguilar F, Crebelli R, Di Domenico A, Dusemund B, Frutos MJ, Galtier P, Gott D, Gundert-Remy U, Leblanc JC, Lindtner O, Moldeus P, Mosesso P, Parent-Massin D, Oskarsson A, Stankovic I, Waalkens-Berendsen I, Woutersen RA, Wright M, Younes M, Boon P, Chrysafidis D, Gürtler R, Tobback P, Gergelova P, Rincon AM, Lambré C. Re-evaluation of fatty acids (E 570) as a food additive. EFSA J 2017; 15:e04785. [PMID: 32625490 PMCID: PMC7009963 DOI: 10.2903/j.efsa.2017.4785] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) provides a scientific opinion re-evaluating the safety of fatty acids (E 570) when used as a food additive. The food additive includes caprylic- (C8), capric- (C10), lauric- (C12), myristic- (C14), palmitic- (C16), stearic- (C18) and oleic acid (C18:1), present alone or in combination. In 1991, the Scientific Committee on Food (SCF) established a group acceptable daily intake (ADI) 'not specified' for the fatty acids (myristic, stearic, palmitic and oleic acid). The fatty acids (E 570) are absorbed in the same way as the free fatty acids from the regular diet. They show low acute toxicity. The available studies on subchronic toxicity were limited but there was no evidence for toxic effects at doses up to 10% in the diet (equivalent to 9,000 mg lauric acid/kg body weight (bw) per day). The Panel considered that the fatty acids (E 570) did not raise a concern for genotoxicity. Data on chronic toxicity, reproductive toxicity and developmental toxicity were too limited to reach a conclusion on these endpoints. The Panel noted that the contribution of fatty acids (E 570) represented on average only 1% of the overall exposure to saturated fatty acids from all dietary sources (food additive and regular diet). Based on the approach described in the conceptual framework for the risk assessment of certain food additives re-evaluated under Commission Regulation (EU) No 257/2010 and taking into account the considerations mentioned above, the Panel concluded that the food additive fatty acids (E 570) was of no safety concern at the reported uses and use levels.
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Majnooni MB, Mohammadi B, Jalili R, Babaei A, Bahrami G. Determination of fatty acids by high-performance liquid chromatography and fluorescence detection using precolumn derivatization with 9-fluorenylmethyl chloroformate. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1275000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Bahareh Mohammadi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ronak Jalili
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Atefeh Babaei
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gholamreza Bahrami
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Pharmacology, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Wu H, Li G, Liu S, Liu D, Chen G, Hu N, Suo Y, You J. Simultaneous determination of six triterpenic acids in some Chinese medicinal herbs using ultrasound-assisted dispersive liquid-liquid microextraction and high-performance liquid chromatography with fluorescence detection. J Pharm Biomed Anal 2015; 107:98-107. [PMID: 25569287 DOI: 10.1016/j.jpba.2014.10.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/28/2014] [Accepted: 10/30/2014] [Indexed: 10/24/2022]
Abstract
A novel analytical method was developed for simultaneous determination of six triterpenic acids using ultrasound-assisted dispersive liquid-liquid microextraction (UA-DLLME) follow by high-performance liquid chromatography (HPLC) with fluorescence detection. Six triterpenic acids (ursolic acid, oleanolic acid, betulinic acid, maslinic acid, betulonic acid and corosolic acid) were extracted by UA-DLLME using chloroform and acetone as the extraction and disperser solvents, respectively. After the extraction and nitrogen flushing, the extracts were rapidly derivatized with 2-(12,13-dihydro-7H-dibenzo[a,g]carbazol-7-yl)ethyl4-methylbenzenesulfonate. The main experimental parameters affecting extraction efficiency and derivatization yield were investigated and optimized by response surface methodology (RSM) combined with Box-Behnken design (BBD). The limits of detection (LODs) and the limits of quantification (LOQs) were in the range of 0.95-1.36 ng mL(-1) and 3.17-4.55 ng mL(-1), respectively. Under the optimum conditions, the method has been successfully applied for the analysis of triterpenic acids in six different traditional Chinese medicinal herbs.
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Affiliation(s)
- Hongliang Wu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, People's Republic of China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Guoliang Li
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, People's Republic of China.
| | - Shucheng Liu
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Ocean University, Zhanjiang, People's Republic of China
| | - Di Liu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, People's Republic of China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Guang Chen
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, People's Republic of China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, People's Republic of China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, People's Republic of China
| | - Jinmao You
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, People's Republic of China; Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, People's Republic of China.
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7
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A review of sampling and pretreatment techniques for the collection of airborne amines. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.02.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Determination of Fatty Acids in Saliva of Smokers and Nonsmokers by HPLC with Fluorescence Detection Using a Hydrazine-Based Difluoro-boraindacene Reagent. Chromatographia 2014. [DOI: 10.1007/s10337-014-2627-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen G, Wang C, You J, Song C, Sun Z, Li G, Kang L. NOVEL REAGENT FOR THE SENSITIVE DETERMINATION OF FREE FATTY ACIDS BY HPLC WITH FLUORESCENCE DETECTION AND IDENTIFICATION WITH MASS SPECTROMETRY AND APPLICATION TO SEVERAL MEDICINAL HERBS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.712934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Guang Chen
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Plateau Institute of Biology, Chinese Academy of Sciences , Xining , People's Republic of China
- b Graduate School of the Chinese Academy of Sciences , Beijing , People's Republic of China
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
- d Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine , Qufu Normal University , Qufu Shandong , China
| | - Chengyan Wang
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
| | - Jinmao You
- a Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Plateau Institute of Biology, Chinese Academy of Sciences , Xining , People's Republic of China
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
- d Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine , Qufu Normal University , Qufu Shandong , China
| | - Cuihua Song
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
- d Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine , Qufu Normal University , Qufu Shandong , China
| | - Zhiwei Sun
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
- d Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine , Qufu Normal University , Qufu Shandong , China
| | - Guoliang Li
- b Graduate School of the Chinese Academy of Sciences , Beijing , People's Republic of China
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
| | - Li Kang
- b Graduate School of the Chinese Academy of Sciences , Beijing , People's Republic of China
- c The Key Laboratory of Life-Organic Analysis , Qufu Normal University , Qufu Shandong , China
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Wang FH, Xiong XJ, Guo XF, Wang H, Zhang HS. Determination of fatty acids in bio-samples based on the pre-column fluorescence derivatization with 1,3,5,7-tetramethyl-8-butyrethylenediamine-difluoroboradiaza-s-indacene by high performance liquid chromatography. J Chromatogr A 2013; 1291:84-91. [DOI: 10.1016/j.chroma.2013.03.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 03/12/2013] [Accepted: 03/14/2013] [Indexed: 11/29/2022]
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11
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Li GL, Chen G, Liu YQ, Jing NH, You JM. A sensitive and selective HPLC-FLD method with fluorescent labeling for simultaneous detection of bile acid and free fatty acid in human serum. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 895-896:191-5. [DOI: 10.1016/j.jchromb.2012.03.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 03/12/2012] [Accepted: 03/16/2012] [Indexed: 11/24/2022]
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A Novel Labeling Reagent of 2-(12-Benzo[b]acridin-5-(12H)-yl)-acetohydrazide for Determination of Saturated and Unsaturated Fatty Acids in Traditional Chinese Herbs by HPLC-APCI-MS. Chromatographia 2012. [DOI: 10.1007/s10337-012-2226-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Pellach M, Goldshtein J, Ziv-Polat O, Margel S. Functionalised, photostable, fluorescent polystyrene nanoparticles of narrow size-distribution. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Pellach M, Margel S. The encapsulation of an amphiphile into polystyrene microspheres of narrow size distribution. Chem Cent J 2011; 5:78. [PMID: 22145683 PMCID: PMC3285059 DOI: 10.1186/1752-153x-5-78] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 12/06/2011] [Indexed: 11/10/2022] Open
Abstract
Encapsulation of compounds into nano- or microsized organic particles of narrow size distribution is of increasing importance in fields of advanced imaging and diagnostic techniques and drug delivery systems. The main technology currently used for encapsulation of molecules within uniform template particles while retaining their size distribution is based on particle swelling methodology, involving penetration of emulsion droplets into the particles. The swelling method, however, is efficient for encapsulation only of hydrophobic compounds within hydrophobic template particles. In order to be encapsulated, the molecules must favor the hydrophobic phase of an organic/aqueous biphasic system, which is not easily achieved for molecules of amphiphilic character. The following work overcomes this difficulty by presenting a new method for encapsulation of amphiphilic molecules within uniform hydrophobic particles. We use hydrogen bonding of acid and base, combined with a pseudo salting out effect, for the entrapment of the amphiphile in the organic phase of a biphasic system. Following the entrapment in the organic phase, we demonstrated, using fluorescein and (antibiotic) tetracycline as model molecules, that the swelling method usually used only for hydrophobes can be expanded and applied to amphiphilic molecules.
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Affiliation(s)
- Michal Pellach
- Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
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Sun Z, You J, Song C, Xia L. Identification and determination of carboxylic acids in food samples using 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl 4-methylbenzenesulfonate (APIETS) as labeling reagent by HPLC with FLD and APCI/MS. Talanta 2011; 85:1088-99. [DOI: 10.1016/j.talanta.2011.05.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 05/04/2011] [Accepted: 05/12/2011] [Indexed: 10/18/2022]
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Chen H, Guo XF, Zhang HS, Wang H. Simultaneous determination of phytohormones containing carboxyl in crude extracts of fruit samples based on chemical derivatization by capillary electrophoresis with laser-induced fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1802-8. [DOI: 10.1016/j.jchromb.2011.05.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 04/18/2011] [Accepted: 05/02/2011] [Indexed: 10/18/2022]
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Bielawska K, Dziakowska I, Roszkowska-Jakimiec W. Chromatographic determination of fatty acids in biological material. Toxicol Mech Methods 2010; 20:526-37. [DOI: 10.3109/15376516.2010.515081] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Chen H, Zhang ZX, Zhang GM, Guo XF, Zhang HS, Wang H. Liquid chromatographic determination of endogenous phytohormones in vegetable samples based on chemical derivatization with 6-oxy(acetylpiperazine) fluorescein. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4560-4564. [PMID: 20356302 DOI: 10.1021/jf100581u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In phytohormone analysis, mass spectrometry (MS)-based methods are primary and powerful tools. However, complex sample preparation and high cost are problems for their application. As a complement for MS-based methods, a new fluorescent labeling reagent for carboxylic acids, 6-oxy(acetylpiperazine) fluorescein (APF), has been used for the determination of endogenous phytohormones, including indolebutyric acid, 1-naphthaleneacetic acid and 2,4-dichlorophenoxyacetic acid. The derivatization yield was maximized by optimizing derivatization conditions in detail, and the derivatives of three phytohormones could be separated completely in 15 min on a C18 column with fluorescence detection at lambda(ex)/lambda(em) = 467/512 nm. The derivatization limits could reach 0.1 microM, and the detection limits (signal-to-noise ratio = 3) were 4.43-14.2 nM. The proposed method has been applied to the determination of the exogenous phytohormones in the crude extracts of vegetable samples without extra purification and enrichment with recoveries of 94.2-102.4%.
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Affiliation(s)
- Hao Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
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Kazarian AA, Smith JA, Hilder EF, Breadmore MC, Quirino JP, Suttil J. Development of a novel fluorescent tag O-2-[aminoethyl]fluorescein for the electrophoretic separation of oligosaccharides. Anal Chim Acta 2010; 662:206-13. [DOI: 10.1016/j.aca.2010.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/21/2009] [Accepted: 01/06/2010] [Indexed: 11/26/2022]
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Robert-Peillard F, Palacio-Barco E, Dudal Y, Coulomb B, Boudenne JL. Alternative Spectrofluorimetric Determination of Short-Chain Volatile Fatty Acids in Aqueous Samples. Anal Chem 2009; 81:3063-70. [DOI: 10.1021/ac802768u] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabien Robert-Peillard
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Edwin Palacio-Barco
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Yves Dudal
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Bruno Coulomb
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Jean-Luc Boudenne
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
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Wu J, Yuan J, Liu Q, Tang F, Ding L, Tan J, Yao S. New derivatizing reagent for analysis of diethylene glycol by HPLC with fluorescence detection. J Sep Sci 2008; 31:3857-63. [DOI: 10.1002/jssc.200800433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Du XL, Zhang HS, Deng YH, Wang H. Design and synthesis of a novel fluorescent reagent, 6-oxy-(ethylpiperazine)-9-(2'-methoxycarbonyl) fluorescein, for carboxylic acids and its application in food samples using high-performance liquid chromatography. J Chromatogr A 2007; 1178:92-100. [PMID: 18067902 DOI: 10.1016/j.chroma.2007.11.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Revised: 11/10/2007] [Accepted: 11/15/2007] [Indexed: 10/22/2022]
Abstract
A novel derivatization reagent for carboxylic acids, 6-oxy-(ethylpiperazine)-9-(2'-methoxycarbonyl)fluorescein (EPMF) has been well designed and synthesized. It was used to label 13 fatty acids, n-butyric acid (C4), n-valeric acid (C5), n-hexanoic acid (C6), n-heptanoic acid (C7), n-octanoic acid (C8), n-nonanoic acid (C9), n-decanoic acid (C10), lauric acid (C12), myristic acid (C14), palmitic acid (C16), stearic acid (C18), oleic acid (C18:1) and linoleic acid (C18:2), successfully. The derivatization reaction with fatty acids was completed at 50 degrees C, 50 min. The derivatives of fatty acids were separated on a C18 reversed-phase column with gradient elution and fluorescence detection at lambda(ex)/lambda(em)=469/518 nm. The detection limits obtained were 0.4-2 nmol L(-1) (signal-to-noise ratio of 3). The proposed method has been applied to the quantification of fatty acids in edible oil with recoveries over 93%. It has been demonstrated that EPMF is a prominent derivatization reagent for fatty acids and is suitable for HPLC.
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Affiliation(s)
- Xiao-Lan Du
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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