in this work, zno/sio2 nanoparticles were prepared using sol-gel method, and platinum particles were loaded on zno/sio2 nanoparticles by photoreductive method. samples were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem) and fourier transform infrared spectroscopy (ft-ir). the xrd patterns showed that the zinc oxide samples have a wurtzite structure (hexagonal phase...

Objective: Honey is a natural sweet substance known for various health benefits and used in many traditional medicines dietary supplements. It contains bioactive constituents like sugars, amino acids, polyphenols, flavonoids minerals. Quality control of honey an essential part ensuring its therapeutic usage. In the present study, was analyzed by using spectroscopic approaches physicochemical me...

Moringa leaves are part of the moringa plants that contain nutrients. The chemical compounds in very much, one them is beta carotene. Beta carotene a potential source vitamin A and has highest activity all carotenoids. purpose this study was to determine content fresh dry using UV-Vis spectrophotometry method. population leaves, sample leaves. Method analysis research conducted by descriptive r...

The main objectives of this study were to qualitatively evaluate the profile phytochemical constituents Elytraria acaulis root (EAR) extracts. dried powder roots plant was extracted with three different solvents namely petroleum ether, methanol and water, subjected various tests UV-VIS spectrophotometry ascertain principal contained in result revealed presence alkaloids, flavonoids, tannins, gl...

The present study focused on the structural, morphological, optical and fluorescence properties of Ni0.5?xMg0.5CuxFe2O4 (x = 0.0, 0.1, 0.3 0.5) nanoparticles synthesized by using auto combustion technique. structural formation ferrite were confirmed FTIR spectroscopic study. From spectra nanoparticles, metal ions are situated in two different sub lattices i.e. tetrahedral (A-site) octahedral (B...

Lidocaine HCl injection is a sterile product that easily contaminated when opened. The temperature and humidity in the storage conditions also affect quality of drug viewed from UV-Vis spectrophotometric absorption value. aimed this study to find out how effect on profile 2% lydocaine by spectrophotometry. used 27 ampoules lidocaine was qualitatively analyzed using lasted for 14 days first stor...

Borax is a chemical compound that contains the element Boron (B). The purpose of this study to determine whether meatballs circulating in various markets Indonesia contain borax, what levels, and how compare results analysis with methods based on literature study. design research use method which done by studying journals about tracing borax using methods. quantitative test used alkalimetric ti...

Ag midnanoparticles (midnanoparticles are those particles whose diameters are in the range from 20 to 80 nm) with average size of 30-50 nm and tunable packing densities were formed on the surface of preformed Tollens-soaked silica spheres by a simple and controlled method. The process mainly involved two steps. In the first step the absorption of Ag(NH3)2(+) ions occurred on the silica spheres ...