Blood absorbs UV light and gets darker. When chemically treated, blood can also fluoresce. Commonly used to create this chemiluminescence is luminol, a reagent that reacts with the heme in the hemoglobin of blood. The literature suggests luminol is extremely sensitive to blood, able to react wit...
To perform a luminol test, the criminalists simply spray the mixture wherever they think blood might be. If hemoglobin and the luminol mixture come in contact, the iron in the hemoglobin accelerates a reaction between the hydrogen peroxide and the luminol. In thisoxidation reaction, the luminol ...
UVWe synthesized photosensitive luminol derivatives which had photoremovable protecting groups on the carbonyl oxygen of luminol to measure ultraviolet ray power. The photosensitive luminol derivatives released luminol by irradiation. The amount of released luminol increased with an increase in light power....
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The assay has a detection limit of 10 μM H2O2 and a linear range up to at least 250 μM. We exposed aqueous suspensions of TiO2 to long-wave UV-light for up to three hours. Over this time period, the concentration of H2O2 increased, with samples containing TiO2 (T) producing more ...
chemiluminescenceheminhydrogelPVPThe chemiluminescent oxidation of luminol by hydrogen peroxide in the presence of hemin is revisited in an UV-C cross-linked PVP hydrogel. Chemiluminescence properties such as initial light intensity (I0), area of emission (S) and observed rate constants (kobs) are ...
A standard chemical test for the detection of saliva is the Phadebas® Press Test, which detects and identifies latent saliva stains, which is a difficult body fluid to identify conventionally due to poor fluorescence under UV light [22]. Although the test is simple, cheap, and rapid there ...
The results showed that methoxy substitution significantly changed the electronic and spectral properties of luminol. Among three derivatives, structure 2 was suggested to have the highest chemiluminescent efficiency. The results may shed some light on the design and selection of chemiluminescent reagents....
The reaction mechanism of the luminol-H2O2-g-C3N4nanosheets system was investigated by CL spectrum, UV鈥搗is absorption spectroscopy, and radical scavengers. The g-C3N4nanosheets-enhanced CL mechanism was attributed to the fact that g-C3N4nanosheets were able to catalyze the decomposition of H2O2to...
By means of CL spectra, UV鈥搗is spectra, electron spin resonance spectra, Fourier transform infrared and X-ray photoelectron spectra, the possible CL reaction mechanism is proposed. The CL luminophor was still 3-aminophthalate, the CL enhancement of luminol system was supposed to originate from...