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5.536  Articles
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Herbal medicine has been commonly used over the years for treatment and prevention of diseases and health promotion as well as for enhancement of the life span and quality of life. It is a well-known fact that Traditional Systems of medicine always played... see more

Spectroscopic method in the UV-Vis region is considered the most molecular spectrometric method for content determination of a single component. However, a lot of pharmaceutical dosage forms comprise two or more components which lead to peak overlapping. ... see more

Sauce is a flavoring and flavor enhancer that is thick and red in color. The sauce is suspected to contain Rhodamine-B as coloring agent because a bright red color fluorescence. This study aims to analyze qualitatively and quantitatively Rhodamin-B in the... see more

Andrographis paniculata is one of the medicinal plants used for the treatment of antidiabetic. Cultivation ages and solvent extraction affected metabolites' composition and concentration that directly cause the plant's efficacies. This research aimed to d... see more

An optical absorbance study using Ultraviolet-Visible (UV-Vis) spectrophotometer device has been conducted on graphene oxide (GO) in copper (Cu) ionic liquid using electrochemical exfoliation combined with a direct current (DC) electrical circuit of coppe... see more

The degree of carbon nanotube (CNT) dispersion in an ink solution plays a critical role in the performance of CNT based devices. This is a challenging task in the CNT utilization due to strong van der Waals interaction affecting the CNT bundles. A good di... see more

The present work was to develop two simple UV spectrophotometric methods for simultaneous estimation of furosemide (FUR) in bulk and tablet dosage form and validate as per ICH guidelines. Method A is absorption maxima method in which ?max was found to be ... see more

Chili is widely used in many food products, especially in Indonesia food. Sometimes a synthetic dye, i.e., rhodamine B or red textile dye were found in commercial chili powder. A fast, precise and accurate analytical method is necessary to authenticate ch... see more

We present a simple technique to estimate the size of silver nanoparticles (AgNPs) based on uv-vis spectra computationally. To have the nanoparticles, the AgNPs colloid was prepared by chemical reduction technique using 40 mM of tri-sodium citrate dihydra... see more

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