Electrogenerated chemiluminescence determination of cefadroxil antibiotic

Tomita, Inês N.; Bulhões, L.O.S.

doi:10.1016/s0003-2670(01)01175-8

Cited by 16 publications

(5 citation statements)

References 25 publications

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“…442 The detailed reaction mechanism is unclear but may involve the increase of the active intermediate NAD • formation rate by coexisting thyroxine during the oxidation of DADH by electrogenerated Ru(bpy) 3 3+ . Finally, detection of fenoterol (LOD ) 0.24 µM), salbutamol (LOD ) 0.40 µM), 447 and cefadroxil 448 in pharmaceuticals was performed with FIA-Ru(bpy) 3 2+ ECL configuration.…”

Section: +mentioning

confidence: 99%

Electrogenerated Chemiluminescence and Its Biorelated Applications

2008

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Wujian Miao received his undergraduate diploma in chemistry from Nantong University (Nantong, China) in 1982, his M.Sc. degree in analytical chemistry from Zhongshan University (Guangzhou, China, with Jinyuan Mo) in 1991, and his Ph.D. degree in electrochemistry from Monash University (Melbourne, Australia, with Alan M. Bond) in 2000. He then served as a Research Scientist in CSIRO (Melbourne, Australia), followed by a postdoctoral fellowship at the University of Texas at Austin with Allen J. Bard in 2001. Since 2004 he has served as an assistant professor of chemistry at the University of Southern Mississippi.

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Section: +mentioning

confidence: 99%

Electrogenerated Chemiluminescence and Its Biorelated Applications

2008

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“…This method afforded an improved limit of detection of 1 6 10 29 M in comparison with 6 6 10 29 M, reported by Aly and co-workers. 29 Not unpredictably, Tomita et al 186 observed that deoxygenation of the solutions increased the sensitivity for the determination of cefadroxil in pharmaceutical formulations.…”

Section: Pharmaceuticals and Pesticidesmentioning

confidence: 99%

Tris(2,2′-bipyridyl)ruthenium(ii) chemiluminescence

Gorman

Francis

Barnett

2006

Analyst

265

193

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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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“…Although a variety of substances can potentially work as a source of ECL, ruthenium(II) (Ru(II)) complexes, especially tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy) 3 2+ ), are conventionally used because of many superior properties, such as high chemical stability, recyclability, redox properties, and long lifetime in the excited state [2,3,4]. Meanwhile, oxygen is well known to be a crucial quencher to the photo-excited state of Ru(II) complexes [7,8,9], followed by the reduction of the ECL intensity [10,11,12]. Thereby, pretreatments for deoxygenation with the analytical samples are essential before conventional ECL detection.…”

Section: Introductionmentioning

confidence: 99%

Oxygen-Resistant Electrochemiluminescence System with Polyhedral Oligomeric Silsesquioxane

et al. 2019

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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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Electrogenerated chemiluminescence determination of cefadroxil antibiotic

Cited by 16 publications

References 25 publications

Electrogenerated Chemiluminescence and Its Biorelated Applications

Electrogenerated Chemiluminescence and Its Biorelated Applications

Tris(2,2′-bipyridyl)ruthenium(ii) chemiluminescence

Oxygen-Resistant Electrochemiluminescence System with Polyhedral Oligomeric Silsesquioxane

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