Anthocyanins are phenolic compounds and provide the natural color found in fruit. Fruits contain a distinctive because they anthocyanin compounds. have special property of changing at certain pH which can specifically absorb light from ultraviolet (UV) to violet absorption region, but is stronger visible spectrum. This study describes content several samples fruits that as indicators. The purpo...

Spectrophotometric method is often recommended in dissolution testing of not only tablets or capsules but also suppositories. Dissolution rate of diclofenac sodium was studied using a pharmacopoeial flow-through apparatus and pH 7.3 buffer. For two lipophilic suppository bases (Witepsol W-32 and H-19) dissolution rate was overestimated with the spectrophotometric zero-order method in comparison...

Amygdalin is a cyanogenic glucoside found in apricot kernels. To facilitate the exploitation and use of wild apricot resources, it is necessary to be able to rapidly and efficiently determine the amygdalin levels within their kernels. To do so, this paper compares two methods, one based on second-derivative UV spectrophotometry and the other on highperformance reversed-phase liquid chromatograp...

We present the results of a detailed analysis of the noise behavior of two CCD spectrometers in common use, an AvaSpec-3648 CCD UV spectrometer and an Ocean Optics S2000 Vis spectrometer. Light sources used include a deuterium UV/Vis lamp and UV and visible LEDs. Common noise phenomena include source fluctuation noise, photoresponse nonuniformity, dark current noise, fixed pattern noise, and re...

Abstract The green plant-mediated synthesis of silver (GPS-Ag) nanoparticles (NPs) has been increasingly popular due to its eco-friendliness, availability, cost-effectiveness, and the fact that it can be safely handled possesses a broad variability metabolites, such as antioxidant antimicrobial activities. In this current study, AgNPs demonstrated using aqueous extracts fresh leaves Ficus caric...