as the Desivac, Adetvac and others, for this purpose. These machines are not only costly but also not easy to obtain in the present emergency. This naturally raises the question as to whether the proteins of the serum and plasma cannot be obtained in a dry form by the use of cheaper chemical methods. As long ago as 1910, Hardy and Gardiner made the observation that, by the addition of alcohol o...

1. The calf-thymus histone group F2a has been separated into two subfractions by stepwise precipitation with acetone from acid solution. 2. Carboxymethyl-cellulose and dextran-gel column chromatography and a method involving dialysis against ethanol have also given the subfractions, but the acetone-hydrochloric acid method has proved to be the most practicable. 3. The two subfractions differ si...

METHODS: Nineteen vials of tetrofosmin were radiolabelled with Tc and the percentages of the RCP were determined. Five different methods were compared with the standard RCP testing method (ITLC-SG, 2x20 cm): Whatman 3MM (1x10 cm) with acetone and dichloromethane (method 1); Whatman 3MM (1x10 cm) with ethyl acetate (method 2); aluminum oxide-coated plastic thin-layer chromatography (TLC) plate (...

A total of ten biological compounds were isolated from the leaves of Barleria montana Nees. by using GC-MS analysis. Among them, the Benzaldehyde,2-hydroxy-6-methyland Urs-12-en-24-oicacid,3-oxo-,methyl ester,(+)as major compounds. The aqueous and different solvent extracts (acetone, chloroform, di-chloromethane, ethanol and methanol) of the plant were tested for antibacterial activity against ...

Hypericaceae herb contains biologically active compounds, flavonoids (1.5–5%), naphthodianthrons, phloroglucins, tannins (10-13%), essential oil (0.1–0.33%) and other compounds. In accordance with the patent RU 2,067,452 C1, St. John's wort extract is obtained using a solvent system acetone-70% ethanol – 30% ethanol. extracted acetone. The raw materials remaining after extraction are dried 70% ...

Seventeen Indian folklore medicinal plants were investigated to evaluate antibacterial activity of aqueous, ethanol and acetone extracts against 66 multidrug resistant isolates of major urinary tract pathogens (Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Enterococcus faecalis) by disc diffusion method. Ethanol extract of Zingiber officinale and Punica granatum showed str...

The heat of the reaction NAD(+)+propan-2-ol=NADH+acetone+H(+) was determined to be 42.5+/-0.6kJ/mol (10.17+/-0.15kcal/mol) from equilibrium measurements at 9-42 degrees C catalysed by yeast alcohol dehydrogenase. With the aid of thermochemical data for acetone and propan-2-ol the values of DeltaH=-29.2kJ/mol (-6.99kcal/mol) and DeltaG(0)=22.1kJ/mol (5.28kcal/mol) are derived for the reduction o...

In cross-coupling of biomass-derived acetone and alcohols contributing to the production carbon-elongated chemicals fuels, essential catalyst components are metal dispersion for alcohol dehydrogenation and, more importantly, basicity carbon–carbon coupling. Herein, we report potential co-precipitated praseodymia–zirconia solid solution (Pr2Zr2O7) as a support Cu conversion butanol into C7 C11 p...

This article is devoted to the investigation of influence solvent on sensing properties, such as response and recovery rate, chemiresistive gas sensors. Multi-walled carbon nanotubes were used an active material for The initial was investigated by scanning electron spectroscopy transmission microscopy, low-temperature nitrogen adsorption, Raman spectroscopy, X-ray diffraction. produced drop cas...

In the present article, feed forward multilayer perceptron neural network (FFMLPNN) model has been used to predict rise in temperature closed loop oscillating heat pipe filled with three different fluid i.e., Acetone, methanol and ethanol respectively. Experimental test was carried out for inner diameter of 1.7mm copper tube all combinations filling ratio, input time taken evaluate performance ...