Results 191 to 200 of about 38,093 (237)
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Luminol peroxidation catalyzed by human isoferritins
Archives of Biochemistry and Biophysics, 1991The role of ferritin in catalyzing the oxidation of luminol with the production of chemiluminescence was investigated. The effect of pH was compared to its effect on K3Fe(CN)6-catalyzed oxidation and different pH optima were recorded for the two catalysts.
R, Henley, M, Worwood
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Analytical studies using iodine—luminol chemiluminescence
Talanta, 1977Trace amounts of substances have been related to iodine consumption monitored by chemiluminescence from the iodine-luminol system. Iodine titrations of sulphite and arsenic(III) have been carried out at levels of 1.0 x 10(-7) and 5.0 x 10(-8)M with a precision and error of better than 1% on a day-to-day basis.
W M, Hardy, W R, Seitz, D M, Hercules
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Photography of Bloodstains Visualized by Luminol
Journal of Forensic Sciences, 1973Abstract The chemical tests for blood currently in use depend upon the detection of hemoglobin or one of its derivatives [1]. Hemoglobin has several properties which make it suitable for this purpose. The most important, due to its sensitivity, is the peroxidase activity of hemoglobin heme which forms the basis of the benzidine, leuco ...
R A, Zweidinger, L T, Lytle, C G, Pitt
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Improving Luminol Blood Detection in Forensics
Journal of Forensic Sciences, 2016AbstractThe aim of this study was to develop chemical improvements to the original Weber protocol, in order to increase the intensity and time length of light emission and to eliminate false‐positive reactions. The intensity and duration of light were measured on serial blood dilutions using a plate reader chemiluminometer.
Bogdan A, Stoica +5 more
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Two Conical Intersections Control Luminol Chemiluminescence
Journal of Chemical Theory and Computation, 2019Luminol, the first discovered and man-made effective chemiluminescence (CL) system, is the best known and one of the most widely used CL materials. The chemiluminescent process of the luminol CL has not yet been fully elucidated, although the decomposition of 1,2-dioxane-3,6-dione dianion (CP2-) is verified to be the key step to produce light emitter ...
Ling Yue, Ya-Jun Liu
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Study on the proteins–luminol binding by use of luminol as a fluorescence probe
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013In this paper, a new mathematical equation of lg(F0-F)/F=1/nlg[P]+1/nlgKa, which was used to obtain interaction parameters (the binding constant Ka and the number of binding sites n) between the protein and the small molecule ligand by using the ligand as a fluorescence (FL) probe, was constructed for the first time.
Xili, He, Zhenghua, Song
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Chemiluminescence Reactions of Luminol and N-Octyl Luminol with Hypochlorite in Anionic Surfactants
Moscow University Chemistry Bulletin, 2019A comparative study of the kinetics of the chemiluminescent reaction of luminol, localized in the aqueous phase, and its hydrophobic analogue, N-octyl luminol, localized in the micellar phase, with the hypochlorite ion in anionic sodium dodecyl sulfate micelles at various surfactant concentrations is carried out.
T. V. Yankova +2 more
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Comparative Analysis of Luminol Formulations
Canadian Society of Forensic Science Journal, 2007ABSTRACTLuminol is a valuable tool for crime scene examiners. The use of this reagent, primarily at crime scenes, allows the visualisation of occult or diluted blood, and the detection of small quantities of blood. Various different luminol formulations have been proposed over the years.
Ignacio Quinones +3 more
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1987
The chemiluminescence of luminol and the cyclic hydrazides of aromatic and heterocyclic acids is one of the “classical” and perhaps still most studied of chemiluminescence reactions [1–6]. The mechanism is much more complicated than that of the more recently discovered dioxetans (Chap. V).
Karl-Dietrich Gundermann, Frank McCapra
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The chemiluminescence of luminol and the cyclic hydrazides of aromatic and heterocyclic acids is one of the “classical” and perhaps still most studied of chemiluminescence reactions [1–6]. The mechanism is much more complicated than that of the more recently discovered dioxetans (Chap. V).
Karl-Dietrich Gundermann, Frank McCapra
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Luminol-based nitrogen dioxide detector
Analytical Chemistry, 1983An instrument for the continuous detection of NO/sub 2/ in the sub-part-per-billion range is described. The instrument is based upon the chemiluminescent reaction between NO/sub 2/ in air and luminol (5-amino-2,3-dihydro-1,4-phthalazinedione) in alkaline solution.
Gregory J. Wendel +3 more
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