Great scientists look at the world around them, identify problems and think about how their area of expertise can provide a solution. This is what Jessica Ray, Assistant Professor in the Department of Civil & Environmental Engineering at the University of Washington, does. In her native St. Lou...
In this method, an acidic solution of chitosan was mixed with glutaraldehyde to form a non-sticky jelly mass by cross-linking. Formed nanoparticles are obtained by sieving (with suitable mesh size), washing with 0.1 N sodium hydroxide solutions and finally drying at 40 °C (Fig. 11). The ...
Slow intramolecular proton exchange of the two-electron blue in acetonitrile solution. Inorg. Chim. Acta 213, 91–98 (1993). Article CAS Google Scholar Kortz, U. & Pope, M. T. Polyoxometalate-diphosphate complexes. 2. Structure of 18-molybdopyrophosphate, [(P2O7)Mo18O54]4−, which ...
The sensor is responsive, highly selective, has low cytotoxicity, and is capable of functioning in a totally aqueous solution. Moreover, this sensor is highly sensitive with a low detection limit of 19 ppb. It is operative in real samples, such as running water, urine, and serum, and ...
Among analgesic drugs, the opioid class of compounds still remains one of the most important medicines for severe and chronic pain treatment. Hence, developing novel and effective synthetic method of morphine and its related compounds is still an important task in modern synthetic organic chemistry. ...
Many were able to explain that if a solution is an electrolyte this can be observed by checking the electrodes: in a strong electrolyte solution there will be many bubbles and the attached lamp will light up brightly. In a weak electrolyte solution, by contrast, there will be very few ...
select article Phenomenological study of the synthesis of pure anhydrous β-lactose in alcoholic solution Research articleAbstract only Phenomenological study of the synthesis of pure anhydrous β-lactose in alcoholic solution Edgar Enrique Lara-Mota, María Inés Nicolás–Vázquez, Laura Araceli López-Ma...
It would be more efficient to bubble CO2 into lead acetate solution (Eckert and Meldrum, 1972), while there is currently no evidence that such a bubbling device has existed in the first millennium BCE in China. The other way that can provide CO32− was using water-soluble carbonate in ...
摘要:three gas chromatography-olfactometry methods, i.e. dilution analysis, detection frequency method and posterior intensity method, were evaluated for attribution of odour potency to eight volatile compounds at seven concentration levels. Six serial 1:5 dilutions of a solution consisting of 2-butano...
C. Taylor: The photochemistry of prednisone acetate in neutral solution. J. Amer. them. Soc. 80, 244–245 (1958). Article CAS Google Scholar Barton, D. H. R., R. M. Evans, J. C. Hamlet, P. G. Jones and T. Walker The preparation of 3 ß:17 adihydroxyallopregnane-11:20-...