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Naumkina VN, Lyamina VM, Zhinzhilo VA, Uflyand IE. Determination of Tetracycline Antibiotics in Milk by Solid-Phase Extraction Using a Coordination Polymer Based on Cobalt Trimesinate as a Sorbent. Polymers (Basel) 2023; 15:4539. [PMID: 38231966 PMCID: PMC10708372 DOI: 10.3390/polym15234539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/18/2023] [Accepted: 11/24/2023] [Indexed: 01/19/2024] Open
Abstract
The coordination polymer was obtained based on cobalt trimesinate. It was characterized by elemental analysis, IR spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The polymer was studied as a sorbent for solid-phase extraction of tetracycline antibiotics. Cobalt trimesinate had a high adsorption capacity (400 mg/g). Antibiotic adsorption followed the pseudo-second-order kinetic model and the Freundlich isotherm model. The process proceeded spontaneously, as indicated by the calculated thermodynamic parameters. The resulting coordination polymer has good stability and recyclability. The possibility of using cobalt trimesinate for the determination of tetracycline in various milk samples was investigated. This work holds great promise for the development and application of a cobalt trimesinate-based coordination polymer for use in sample preparation to replace the time-consuming vacuum evaporation procedure with a relatively simple solid-phase extraction procedure.
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Affiliation(s)
| | | | | | - Igor E. Uflyand
- Department of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia (V.A.Z.)
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Novel electrochemiluminescence luminophore based on flower-like binuclear coordination polymer for high-sensitivity detection of tetracycline in food products. Food Chem 2023; 403:134376. [DOI: 10.1016/j.foodchem.2022.134376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 11/21/2022]
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Abstract
The multiple therapeutic potentials of tetracycline and its worldwide usage have encouraged researchers to develop various methods for its assay in various matrices and for different purposes. In this regard, different analytical techniques have been exploited. Among those techniques is flow injection (FI), which is an extended family of three generations and five versions. The current manuscript reviews the utilization of FI techniques for developing assay methods for tetracycline. The review covers more than forty methods, since the inception of FI techniques and up to date. The review highlights the advantages of the application of FI techniques for quantification of tetracycline in terms of reagent consumption, sample frequency, accuracy, and practitioner safety, besides instrumentation simplicity and cost-effectiveness. The review also addresses applications to several matrices ranging from simple matrices such as standard solutions and pharmaceutical formulations to complex matrices such as biological fluids and food. Prior to the review, a brief background on the principles and developments of FI techniques is illustrated.
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Affiliation(s)
- Mohammed D Y Oteef
- Department of Chemistry, College of Science, Jazan University, Jazan, Saudi Arabia
| | - Abubakr M Idris
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia.,Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
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A novel label-free solid-state electrochemiluminescence sensor based on the resonance energy transfer from Ru(bpy) 32+ to GO for DNA hybridization detection. Talanta 2020; 218:121126. [PMID: 32797883 DOI: 10.1016/j.talanta.2020.121126] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/30/2020] [Accepted: 05/04/2020] [Indexed: 11/23/2022]
Abstract
Based on electrochemiluminescence resonance energy transfer (ERET) from Ru(bpy)32+ to graphene oxide (GO), a novel label-free solid-state ECL sensor for sensitive detection of DNA was proposed. First, Ru(bpy)32+/AuNPs was successfully prepared by using a simple and green method and characterized by transmission electron microscopy (TEM), Energy Dispersive X-ray (EDX), and UV-vis spectroscopy. Then, the Ru(bpy)32+/AuNPs colloid was assembled on the gold electrode surface for solid-state ECL film which also later could be used to immobilize thiol-derivatized, single-stranded DNA (HS-ssDNA) via Au-S interactions. The stepwise modification procedure was characterized by cyclic voltammetry(CV), electrochemical impedance spectroscopy (EIS), probe approach curves (PAC) and ECL, respectively. The resulting modified electrode was tested as ECL biosensor for DNA detection. Upon addition of GO, the strong noncovalent interaction between HS-ssDNA and GO led to ECL quenching because of ERET. When in the presence of target ssDNA (t-ssDNA), the distance between the HS-ssDNA and GO increased, which significantly hindered the ERET and, thus, resulted in the restoration of ECL. The ECL intensity of the biosensor increased linearly with t-ssDNA concentration in the range of 50-1000pM, and the detection limit is 20pM. To the best of our knowledge, this is the first application of solid-state ERET from Ru(bpy)32+ to GO and opens new opportunities for sensitive detection of biorecognition events.
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Shan X, Pan Y, Dai F, Chen X, Wang W, Chen Z. ZnO/CNT-COOHs based solid-state ECL sensor for tetracycline detection in fishpond water. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104708] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Wang F, Fu C, Huang C, Li N, Wang Y, Ge S, Yu J. Paper-based closed Au-Bipolar electrode electrochemiluminescence sensing platform for the detection of miRNA-155. Biosens Bioelectron 2020; 150:111917. [DOI: 10.1016/j.bios.2019.111917] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 01/05/2023]
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Nakamura R, Narikiyo H, Gon M, Tanaka K, Chujo Y. Oxygen-Resistant Electrochemiluminescence System with Polyhedral Oligomeric Silsesquioxane. Polymers (Basel) 2019; 11:polym11071170. [PMID: 31295820 PMCID: PMC6680606 DOI: 10.3390/polym11071170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/06/2019] [Accepted: 07/07/2019] [Indexed: 11/16/2022] Open
Abstract
We report the oxygen-resistant electrochemiluminescence (ECL) system from the polyhedral oligomeric silsesquioxane (POSS)-modified tris(2,2'-bipyridyl)ruthenium(II) complex (Ru-POSS). In electrochemical measurements, including cyclic voltammetry (CV), it is shown that electric current and ECL intensity increase in the mixture system containing Ru-POSS and tripropylamine (TPrA) on the indium tin oxide (ITO) working electrode. The lower onset potential (Eonset) in CV is observed with Ru-POSS compared to tris(2,2'-bipyridyl)ruthenium(II) complex (Ru(bpy)32+). From the series of mechanistic studies, it was shown that adsorption of Ru-POSS onto the ITO electrode enhances TPrA oxidation and subsequently the efficiency of ECL with lower voltage. Moreover, oxygen quenching of ECL was suppressed, and it is proposed that the enhancement to the production of the TPrA radical could contribute to improving oxygen resistance. Finally, the ECL-based detection for water pollutant is demonstrated without the degassing treatment. The commodity system with Ru(bpy)32+ is not applicable in the absence of degassing with the sample solutions due to critical signal suppression, meanwhile the present system based on Ru-POSS was feasible for estimating the amount of the target even under aerobic conditions by fitting the ECL intensity to the standard curve. One of critical disadvantages of ECL can be solved by the hybrid formation with POSS.
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Affiliation(s)
- Ryota Nakamura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hayato Narikiyo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Xu H, Zhu X, Wang J, Lin Z, Chen G. Electrochemiluminescent functional nucleic acids‐based sensors for food analysis. LUMINESCENCE 2019; 34:308-315. [DOI: 10.1002/bio.3596] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/20/2018] [Accepted: 12/23/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Huifeng Xu
- Academy of Integrative MedicineFujian University of Traditional Chinese Medicine Fuzhou Fujian P. R. China
| | - Xi Zhu
- College of Life SciencesFujian Agriculture and Forestry University Fuzhou Fujian P. R. China
| | - Jian Wang
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Department of ChemistryFuzhou University Fuzhou Fujian P. R. China
| | - Zhenyu Lin
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Department of ChemistryFuzhou University Fuzhou Fujian P. R. China
| | - Guonan Chen
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Department of ChemistryFuzhou University Fuzhou Fujian P. R. China
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Ma C, Wu W, Peng Y, Wang MX, Chen G, Chen Z, Zhu JJ. A Spectral Shift-Based Electrochemiluminescence Sensor for Hydrogen Sulfide. Anal Chem 2017; 90:1334-1339. [DOI: 10.1021/acs.analchem.7b04229] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Cheng Ma
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Wanwan Wu
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Yujiao Peng
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Min-Xuan Wang
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Gang Chen
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Zixuan Chen
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry
for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
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11
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Recent development of electrochemiluminescence sensors for food analysis. Anal Bioanal Chem 2016; 408:7035-48. [DOI: 10.1007/s00216-016-9548-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/02/2016] [Accepted: 04/04/2016] [Indexed: 10/21/2022]
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12
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Wang J, Xu Y, Liu M, Niu F, Liu J. Facile Fabrication of Solid-state Electrochemiluminescence Sensor via Non-covalent π-π Stacking and Covalent Bonding on Graphite Electrode. ELECTROANAL 2015. [DOI: 10.1002/elan.201500618] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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A novel electrochemiluminescence tetracyclines sensor based on a Ru(bpy)32+-doped silica nanoparticles/Nafion film modified electrode. Talanta 2014; 129:26-31. [DOI: 10.1016/j.talanta.2014.04.054] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/13/2014] [Accepted: 04/21/2014] [Indexed: 11/19/2022]
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14
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A direct competitive assay-based aptasensor for sensitive determination of tetracycline residue in honey. Talanta 2014; 131:562-9. [PMID: 25281141 DOI: 10.1016/j.talanta.2014.08.028] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/07/2014] [Accepted: 08/09/2014] [Indexed: 02/07/2023]
Abstract
Tetracycline (TC) is a common antibacterial agent used for prevention and control of animal diseases. The increasing concern about TC residue in food demands high-performing analytical techniques for food quality assessment. Biosensors represent a promising tool for food safety analysis as they can fulfill some demand that the conventional methods do not attain. In this study, a novel colorimetric aptasensor was developed for sensitive detection of TC in honey. The aptasensor was based on a modified direct competitive enzyme-linked aptamer assay (dc-ELAA) scheme utilizing a 76 mer single-stranded DNA (ssDNA) aptamer selected by Systematic Evolution of Ligands by Exponential Enrichment (SELEX). The optimized aptasensor showed a good limit of detection (LOD of 0.0978 ng/mL), a wide linear range (0.1-1000 ng/mL) toward TC in honey, with good recoveries (92.09-109.7%) in TC-spiked honey, and was compared with an indirect competitive assay-based aptasensor and validated with a standard ELISA. The biosensor based on dc-ELAA with good limit of detection and simplicity can be applied for high-throughput detection of TC in food.
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Wang S, Yong W, Liu J, Zhang L, Chen Q, Dong Y. Development of an indirect competitive assay-based aptasensor for highly sensitive detection of tetracycline residue in honey. Biosens Bioelectron 2014; 57:192-8. [PMID: 24583691 DOI: 10.1016/j.bios.2014.02.032] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/08/2014] [Accepted: 02/11/2014] [Indexed: 10/25/2022]
Abstract
Tetracycline (TC) is widely used for prevention and control of animal diseases for its broad spectrum antimicrobial activity and low cost, but its abuse can seriously affect human health and may result in trade loss. Thus there is an imperative need to develop high-performing analytical technique for TC detection. In this study, we developed a biosensor based on an indirect competitive enzyme-linked aptamer assay (ic-ELAA). A 76mer single-stranded DNA (ssDNA) aptamer, selected by Systematic Evolution of Ligands by Exponential Enrichment (SELEX), was applied for the recognition and detection of TC in honey. The limit of detection was 9.6×10(-3) ng/mL with a linear working range from 0.01 to 100 ng/mL toward TC in honey, and a mean recovery rate of 93.23% in TC-spiked honey was obtained. This aptasensor can be applied to detect TC residue in food with high sensitivity and simplicity, and it is prospective to develop useful ELAA Kits for TC determination in food.
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Affiliation(s)
- Sai Wang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Wei Yong
- Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing 100123, PR China
| | - Jiahui Liu
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Liya Zhang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Qilong Chen
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yiyang Dong
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
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17
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Quenching of the electrochemiluminescence of Ru(bpy)32+/TPA by malachite green and crystal violet. Talanta 2013; 106:174-80. [DOI: 10.1016/j.talanta.2012.12.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/12/2012] [Accepted: 12/14/2012] [Indexed: 11/20/2022]
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Wang Z, Song H, Zhao H, Lv Y. Graphene-amplified electrogenerated chemiluminescence of CdTe quantum dots for H2O2sensing. LUMINESCENCE 2012; 28:259-64. [DOI: 10.1002/bio.2371] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 03/03/2012] [Accepted: 03/07/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Zhonghui Wang
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Hongjie Song
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Huihui Zhao
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu; Sichuan; 610064; China
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Qiu B, Xue L, Wu Y, Lin Z, Guo L, Chen G. Mechanism study on inorganic oxidants induced inhibition of Ru(bpy)32+ electrochemiluminescence and its application for sensitive determination of some inorganic oxidants. Talanta 2011; 85:339-44. [DOI: 10.1016/j.talanta.2011.03.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 03/21/2011] [Accepted: 03/25/2011] [Indexed: 11/24/2022]
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Jing T, Niu J, Xia H, Dai Q, Zheng H, Hao Q, Mei S, Zhou Y. Online coupling of molecularly imprinted solid-phase extraction to HPLC for determination of trace tetracycline antibiotic residues in egg samples. J Sep Sci 2011; 34:1469-76. [DOI: 10.1002/jssc.201100030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 03/23/2011] [Accepted: 03/23/2011] [Indexed: 11/11/2022]
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Guo Z, Gai P. Development of an ultrasensitive electrochemiluminescence inhibition method for the determination of tetracyclines. Anal Chim Acta 2011; 688:197-202. [PMID: 21334486 DOI: 10.1016/j.aca.2010.12.043] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 12/21/2010] [Accepted: 12/22/2010] [Indexed: 10/18/2022]
Abstract
An electrochemiluminescence (ECL) inhibition method is developed for quantitative determination of four tetracyclines (TCs) in honey samples, including tetracycline (TC), oxytetracycline (OTC), chlortetracycline (CTC) and doxycycline (DC). It was found that the four TCs strongly inhibited the ECL signal of the Ru(bpy)(3)(2+)/DBAE system. Based on the ECL signal changes, a simple and ultrasensitive detection method for TCs was thus established. The optimum experimental conditions including the scan mode and scan rate of the applied potential, the type of the buffer solution and its pH, and the concentration of Ru(bpy)(3)(2+) and DBAE for the ECL inhibition method, were investigated in detail. Under the optimized conditions, the quenched ECL intensity versus the logarithm of the concentration of TCs is in good linear relationship over a concentration range from 4.0 × 10(-11) to 4.0 × 10(-9) g mL(-1). The detection limits were found to be 2.0 × 10(-12) g mL(-1). The results obtained by the proposed ECL system, in terms of sensitivity, were much better than those of previously reported methods. In addition, the method was applied successfully to determine the total residuals of the four TCs in honey samples. The relative standard deviations were found in a range of 4.9-14.3%, and the recoveries were obtained from 87.5% to 115.0%. A possible mechanism for the quenching effects of Ru(bpy)(3)(2+)/DBAE system was also proposed.
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Affiliation(s)
- Zhiyong Guo
- Faculty of Materials Science and Chemical Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo, Zhejiang 315211, PR China.
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Yu X, Dai J, Yang L, Xiao D. 1-Butyl-3-methylimidazolium based ionic liquid as solvent for determination of hydrophobic naphthol with the electrogenerated chemiluminescence of tris(2,2′-bipyridine) ruthenium(ii). Analyst 2010; 135:630-5. [DOI: 10.1039/b916435a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chen Y, Mao J, Liu C, Yuan H, Xiao D, Choi MMF. [Ru(dpp)(3)][(4-Clph)(4)B](2) nanoislands directly assembled on an ITO electrode surface and its electrogenerated chemiluminescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:1253-1258. [PMID: 19090665 DOI: 10.1021/la803151x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, solid-state tris(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) ditetrakis(4-chlorophenyl)borate ([Ru(dpp)(3)][(4-Clph)(4)B](2)) nanoislands are assembled spontaneously and simultaneously on an indium-doped tin oxide (ITO) glass electrode surface via a facile dewetting procedure. The fabrication process is very simple and also amenable to mass production. The as-prepared ruthenium complex nanoislands exhibit useful properties. The electrode is more electrochemically active and can produce strong, stable, reproducible solid-state electrochemiluminescence (ECL) signals using oxalate as the coreactant. The self-assembled nanoislands exhibit semiconductor-like broad, red-shift ECL spectrum. More importantly, they extend the application of the ruthenium complex ECL system from the usual alkaline to acidic conditions. The pH turn-off behavior of the ECL is observed for the first time and can serve as an ultrasensitive pH sensor around physiological pH 7.0. The solid-state [Ru(dpp)(3)][(4-Clph)(4)B](2) ECL signal is efficiently inhibited by phenol even at a very low concentration (i.e., 20 nM), thus providing the potential for the determination of phenolic compounds in practical applications.
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Affiliation(s)
- Ying Chen
- Colleges of Chemistry and Chemical Engineering, Sichuan University, Chengdu 610065, PR China
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Affiliation(s)
- Wujian Miao
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA.
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Francis PS, Hogan CF. Luminescence. ADVANCES IN FLOW INJECTION ANALYSIS AND RELATED TECHNIQUES 2008. [DOI: 10.1016/s0166-526x(08)00613-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Cai YE, Cai Y, Shi Y, Mou S, Lu Y. Optimizing the integrated pulsed amperometric multicycle step waveform for the determination of tetracyclines. J Chromatogr A 2006; 1118:35-40. [PMID: 16359687 DOI: 10.1016/j.chroma.2005.11.091] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2005] [Revised: 11/14/2005] [Accepted: 11/14/2005] [Indexed: 11/21/2022]
Abstract
A method of modified integrated pulsed amperometric detection with multicycle step waveform (Multi-IPAD) following high-performance liquid chromatography (HPLC) was applied for the determination of tetracyclines (TCs) including dimethyltetracycline (DMTC), oxytetracycline (OTC) and tetracycline (TC). The key advantages of the Multi-IPAD are the abilities to enhance sensitivity and reproducibility and the ability to keep working electrode clean through the use of a high-frequent waveform alteration in integration step and the use of a cleaning potential, which is quite different from conventional three-step potential waveform. The analyses were carried out using the mobile phase of acetonitrile-water mixture solution (10:90, v/v) containing 1% perchloric acid on a C(18) column at a flow rate of 0.21 mL/min. The IPAD waveform parameters were optimized to maximize the signal-to-noise ratio (S/N) and successfully applied for the sensitive detection of TCs. The detection limits (S/N=3, 20 microL injected) were 0.07 mg/L for DMTC, 0.08 mg/L for OTC and 0.05 mg/L for TC. The peak height relative standard deviations (RSDs) of every compound for replicate injection (n=15) determined were below 4.6%.
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Affiliation(s)
- Yu-e Cai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Abstract
This paper critically reviews analytical applications of the chemiluminescence from tris(2,2'-bipyridyl)ruthenium(II) and related compounds published in the open literature between mid-1998 and October 2005. Following the introduction, which summarises the reaction chemistry and reagent generation, the review divides into three major sections that focus on: (i) the techniques that utilise this type of detection chemistry, (ii) the range of analytes that can be determined, and (iii) analogues and derivatives of tris(2,2'-bipyridyl)ruthenium(II).
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Affiliation(s)
- Bree A Gorman
- School of Life and Environmental Sciences, Deakin University, Geelong, Victoria 3217, Australia
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