Three reliable, rapid and selective methods have been developed and validated for the determination of imipramine and chlordiazepoxide in pharmaceutical dosage forms. The first method is spectrophotometric method includes simultaneous estimation method, first order derivative spectrophotometric method, isoabsorptive method and multiwavelength method. All variables affecting the reaction have be...

Two routes to the synthesis of a cyclohexyl-fused 1,4,7-triazacyclononane involving macrocyclisations of tosamides have been investigated. In the first approach, using a classic Richman-Atkins-type cyclisation of a cyclohexyl-substituted 1,4,7-tritosamide with ethylene glycol ditosylate, afforded the cyclohexyl-fused 1,4,7-triazacyclononane in 5.86% overall yield in four steps. The second, more...

Abstract Densities in the homogeneous liquid phase of (mono-)ethanolamine (MEA) and diethanolamine (DEA) were investigated using a commercially available high-pressure vibrating-tube densimeter (VTD). Due to melting point experimental materials, setup VTD had be modified by an insulated housing entire piping including pressure pump. The could heated up temperature-controlled heating fan. sample...

Aiming at the iron and steel industry decarbonisation with blast furnace gas (BFG) utilisation, a techno-economic feasibility of pre-combustion carbon capture methyl diethanolamine (MDEA) is evaluated herein. The effectiveness water shift (WGS) implementation on performance also investigated. integration power plant decarbonised fuel from unit taken into account both technical economic perspect...

Abstract The ZnO thin films were successfully synthesized using sol-gel spin coating method. surface other film then coated with natural dye. Materials used zinc acetate dehydrate , isopropanol, Diethanolamine and purple heart flower consecutively as based materials, solution, stabilizer, grown glass by dropping Sol-gel on a of FTO speed variation 2000, 3000, 4000, 6000 rpm. successively pre-he...

Biobased cationic waterborne polyurethanes (WPUs) were prepared using isophorone diisocyanate (IPDI), N-methyl diethanolamine (N-MDEA), polycaprolactone (PCL) diol, hydrochlotic acid (HCl), and 1,4-butanediol (BDO). To improve the mechanical performance adhesive strength of polyurethane films, different amounts castor oil (CO) acting as a cross-linking agent incorporated in structure. The struc...

Validation of a Liquid Chromatography Tandem Mass Spectrometry Method for Targeted Degradation Compounds of Ethanolamine Used in CO2 Capture: Application to Real Samples — In the field of greenhouse gas emission, a promising approach consists in CO2 storage and capture. However most of the processes are based on amine solutions which are likely to Oil & Gas Science and Technology – Rev. IFP Ene...

Pyrolysis of waste tyres produces harmful hydrogen sulfide and other mercaptan compounds as by-products. The current study is concerned with the purification hydrogen-rich pyrolysis gas from that present in a great amount (up to 5.1% mol at 420 °C), mercaptans are also problematic impurities. method proposed absorption by alkanolamines which one most economical methods applied natural sweetenin...