In the present study, an oxidative conversion of non-fluorescent dichlorofluoroscein (LDCF) to fluorescent dichlorofluoroscein (DCF) was used for detection of antioxidant properties of plant extracts. The rate of the reaction was followed by monitoring the formation of DCF as a function of time. The antioxidant assay was carried out for different concentrations of gallic acid, Salvia ...

Abstract Canadian gum, epoxy resin, and emery are used in the production of general rock thin section materials. These materials have fluorescence, so it is not possible to make fluorescent sections. The use other colloids or transparency good, because abrasive will also lead specimen having which cannot be selected. At present, 502 usually sheet adhesive China, but colloid soluble water impact...

The fluorescence lifetime technique offers an effective way to resolve fluorescent components with overlapping emission spectra. The presence of multiple fluorescent components in biological compounds can hamper their discrimination. The conventional method based on the nonlinear least-squares technique is unable to consistently determine the correct number of fluorescent components in a fluore...