The electrochemical stability of ceftriaxone (CFTX), belonging to the third generation cephalosporin antibiotics, was studied by measurements recorded on a platinum electrode (Pt) in aqueous solutions containing sodium halides. behavior investigated cyclic voltammetry (CV) and constant current density electrolysis assisted UV-Vis spectrophotometry. Cyclic highlighted that addition CFTX halide l...

In this work, a clean and simple magnetic solid-phase microextraction based on L-arginine modified dialdehyde starch nanocomposite was developed for the preconcentration determination of diclofenac in biological samples by UV–Vis Spectrophotometry. A Plackett–Burman experimental design used to evaluate influence effective parameters. Significant parameters were further optimized Central Composi...

Background: Tea is a refreshing drink that contains polyphenol compounds, namely catechins are used for medicine and cosmetics. This study was to assess the content of catechin compounds in green tea, oolong black tea products from Indonesia, China Taiwan. Methods: Some brewed at varying temperatures (75±2; 85±2 95±20 C) times (5; 10 15 minutes). Identification carried out using chemical reagen...

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...

tidepressants, a group of drugs widely used for treating depressive diseases. Its chemical structure is shown in Fig. 1. Most existing methods for the determination of nortriptyline in bulk, pharmaceutical formulations and biological samples have been reviewed. Among other methods described for the assay of this drug are direct UV-spectrophotometry, derivatives spectrophotometry, fluorimetry an...

Abstract Gold nanoparticles (AuNPs) are well-known biomedical and biotechnological applications because of their interesting properties. They easily cross the cell membranes interact with intracellular materials. This study was designed to investigate interaction calf spleen DNA AuNPs at a molar ratio 2:1 in an aqueous solution different ionic strengths (10, 50, 100%). AuNPs/DNA complex were ch...

Rhodamine B is a synthetic dye that usually used in the textile and paper industries. According to Permenkes No.239/Menkes/Per/V/85 regarding certain dyes, it states rhodamine dangerous substance. prohibited for use as food additive because has chelating compounds chlorine which can cause cancer humans. Based on above problems, review of articles was carried out by collecting journal literature...