Now showing items 1-10 of 62
A multicommuted flow-based system for hydrogen peroxide determination by chemiluminescence detection using a photodiode
A simple, rapid, and automated assay for hydrogen peroxide in pharmaceutical samples was developed by combining the multicommutation system with a chemiluminescence (CL) detector. The detection was performed using a spiral ...
The chemiluminescent peroxyoxalate system: state of the art almost 50 years from its discovery
(ARKAT USA INCGAINESVILLE, 2012)
Almost fifty years after the discovery of the peroxyoxalate reaction by E. A. Chandross in the early nineteen sixties, this review article intends to give a general overview on mechanistic aspects of this system and to ...
Selective activity of butyrylcholinesterase in serum by a chemiluminescent assay
In a previous study, we showed that purified commercial esterase activity can be detected in a chemiluminescent assay based on the hydrolysis of 2-methyl-1-propenylbenzoate (MPB) to 2-methyl-1-propenol, which is subsequently ...
A critical evaluation of a flow-cell based on a liquid core waveguide for chemiluminescence measurements
(JOHN WILEY & SONS LTD, 2008)
Liquid-core waveguides (LCWs), devices that constrain the emitted radiation minimizing losses during the transport, are an alternative to maximize the amount of detected radiation in luminescence. In this work, the performance ...
A flow-based analytical procedure for salbutamol determination exploiting chemiluminescence in a liquid-core waveguide
(TAYLOR & FRANCIS INC, 2008)
Salbutamol is a bronchodilator whose use is restricted due to its anabolic effects. A flow-based procedure for salbutamol determination based on the inhibition of chemiluminescence of the luminol/hypochlorite system was ...
A quantitative chemiluminescent method for studying replicative and stress-induced premature senescence in cell cultures
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
beta-Galactosidase (beta-Gal) activity is a widely accepted biomarker to detect senescence both in situ and in vitro. A cytochemical assay based on production of a blue-dyed precipitate that results from the cleavage of ...
Use of sorghum seed tissue as a biocatalyst in a stirred reactor for oxalic acid determination
(Royal Soc ChemistryCambridgeInglaterra, 1996)
An improved chemiluminescence method for hydrogen peroxide determination in plant tissues
As a consequence of the increasing importance of hydrogen peroxide in plant metabolism, more efficient methods are required for accurate determinations of its concentration in plant tissue and organs. Here we present a ...
ELECTRONICALLY EXCITED SPECIES IN THE SPONTANEOUS CHEMI-LUMINESCENCE OF URINE AND ITS USES IN THE DETECTION OF PATHOLOGICAL CONDITIONS
(Physiol Chem Physics Med NmrMelville, 1982)
Detection of Tl(III) with luminol at physiological pH requires hydrogen peroxide as co-oxidant
(Elsevier Science, 2013-05)
The possibility that the reaction between Tl(III) (10–75 μM) and luminol at physiological pH requires the presence of a co-oxidant to produce chemiluminescence (CL) was evaluated. At pH 7.4 Tl(III) did not produce CL, ...