Analytical chemistry relies massively on solvents, which are generally petroleum-based and have hazardous effects. The ideal alternative solvents suitable for analysis should high selectivity, solvency, low toxicity, environmental impacts, be easily biodegradable recyclable, obtained from renewable resources at a reasonable price. Obviously, finding the solvent that meets all aforementioned req...

some n¬-acyl-n'-aryl thiourea derivatives 4(a-f) have been prepared by the reaction of acyl halides ammonium thiocyanate and aryl amines. the structures of synthesized compounds have been characterized by ir, 1hnmr spectral studies. the synthesized compounds 5(a-f) have been screened for antibacterial activity. the effect of the structure of the investigated compounds on the antibacterial activ...

Micro extraction techniques represent the current state of the art in analytical sample preparation characterized with solvent-free/solventminimized extraction, miniaturization and automation to treat samples with pharmaceutical, food, forensic, and environmental significance for instrumental analysis. To be consistent with today’s challenges of sustainability and environmental issues, Green An...

Colin Webb, Apostolis A. Koutinas, Chenyu Du, Ruohang Wang, Yunji Xu, Sze Ki Carol Lin, Rafael Luque, James H Clark School of Chemical Engineering and Analytical Science, The University of Manchester, Satake Centre for Grain Process Engineering, PO Box 88, Sackville St, Manchester, M60 1QD, United Kingdom Chemistry Department, Green Chemistry Centre of Excellence, The University of York, York, ...

"Green analytical chemistry" (GAC) succeeded to become an eco-friendly environmental crucial area in the field of analytical chemistry targeting at the chemical processes' and products' optimization regarding to material consumption, generation of waste and intrinsic safety, toxicity and environmental burdens. For an expressive comparison, an electro-analytical in-line potentiometric selective ...

aqueous polyurethane dispersions (puds) have recently emerged as important alternatives to their solvent-based counterparts for various applications due to increasing health and environmental awareness (green chemistry). anionic polyester-polyurethane dispersions were synthesized by three steps. in the first step, macromonomer diisocyanate having carboxylic acid was prepared by isophorone diiso...

molecular sieves mcm-41 were synthesized from rice husk ash (rha) as alternative sources of silica. the material was synthesized by a room temperature method from a gel with the molar composition sio2: 1.6ea: 0.215hdtmabr: 325h2o with ph correction. the cetyltrimethylammonium bromide (ctmabr) was used as a structure template. nanocomposite containing 5.0 and 10.0 wt.% of cu was synthesized unde...