نتایج جستجو برای: 14 dioxane
تعداد نتایج: 360389 فیلتر نتایج به سال:
LUCITE NOT A SUBSTITUTE FOR CANADA BALSAM WHEN MOUNTING MICROSCOPE SLIDES' LUCITE2 is a crystal-clear methyl methacrylate polymere which has a refractive index nearly the same as glass and is readily soluble in dioxan. Dioxan3 has proven useful as a dehydrating agent for the preparation of sections and objects to be mounted for observation with the microscope. Thus with the Lucite in dioxan sol...
By the use of a rapid dialysis equilibrium technique, the binding of skatole and acetyl-L-tryptophan with bovine albumin has been studied at various concentrations of KCl, dioxane, urea, and glycine, at different pH values, and at different temperatures. Binding was found to be principally at one site with an association constant much higher than at any secondary sites. The primary association ...
Abstract Cyclobutanols undergo ring expansion with molecular oxygen in the presence of Co(acac)2 to afford 1,2-dioxane-hemiperoxyketals. In course acylation, we observed that endoperoxides rearranged into γ-lactone triethylamine. Thus, a generalization this contraction through Kornblum–DeLaMare rearrangement is here reported. Application transformation monosubstituted 1,2-dioxane derivatives al...
The study aims to compare the lignin extraction methods of OPEFB using different solvents; soda and dioxane solvent, reinforcement effects in polylactic acid (PLA) bio-composite. Different method has been found produce with properties purity. yield also highly dependent on types solvents used process. Soda treatment had shown a good removal 17.4 % yield, but only 8.08 for treatment. In contrast...
BACKGROUND Immobilization of enzymes onto different carriers increases enzyme's stability and reusability within biotechnological and pharmaceutical applications. However, some immobilization techniques are associated with loss of enzymatic specificity and/or activity. Possible reasons for this loss are mass transport limitations or structural changes. For this reason an immobilization method m...
Advanced oxidation processes (AOPs) play a vital role in attenuating contaminants of emerging concern (CECs) during potable water reuse. AOPs are conventionally performed by irradiating with 254-nm low-pressure (LP) mercury-vapor (Hg) ultraviolet (UV) lamp along chemical treatment. Compared UV-C light treatment (200–280 nm), vacuum-UV (V-UV) (100–200 nm) is advantageous terms hydroxyl radical g...
H erbicidal chloroacetam ides cause a very sensitive inhibition of fatty acid incorporation into an insoluble cell wall fraction of Scenedesm us acutus. The m olecular basis was investi gated in m ore detail. A fter incubation of the algae with [14C]oleic acid and saponification, the rem aining pellet was solubilized and fractionated consecutively with chloroform /m ethanol, phosphate buffer, ...
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