*Assistant Professor, **Professor and Head Nephrology, ****Professor and Director, Department of Nephrology and Clinical Transplantation, ****Professor and Head Pathology, Department of Pathology, Laboratory Medicine, Transfusion Services and Immunohematology, Institute of Kidney Diseases & Research Centre Dr H L Trivedi Institute of Transplantation Sciences (IKDRC-ITS), Civil Hospital Campus, ...

In this study elements of validation of headspace GC method of determination of residual methanol, n-pentane, ethanol, tert-butylamine, 2propanol, acetonitrile, dichloromethane and toluene in pharmaceutical substance are presented. Validation of the method included: selectivity, system precision, method precision, accuracy (recovery), limits of detection and quantitation (in substance), robustn...

HPLC/ESI-MS analyses of alcohol solutions of ampicillin and amoxicillin have shown that the two drugs react very readily with alcohols (methanol and ethanol) at room temperatures, without the presence of any catalyst. Products of methanolysis were detected even when methanol was used as a mobile phase, in HPLC/ESI-MS analysis of a water solution of ampicillin and amoxicillin. Therefore, neither...

Olive leaves are considered to have great potential as natural sources of antioxidants and phenolic compounds. In this study, dried olive were extracted using four different solvents (water, methanol, ethanol, 80:20(v/v) methanol-water) with ultrasonic-assisted extraction. The biochemical (total phenolics flavonoids, total protein, free amino acids, soluble, reducing sugars) antioxidant activit...

Recommended Reference Value Standards based on the potassium hydrogenphthalate buffer at various temperatures are reported for pH measurements in various binary solvent mixtures of water with eight organic solvents: methanol, ethanol, 2-propanol, 1,2-ethanediol, 2-methoxyethanol (“methylcellosolve”), acetonitrile, 1,4-dioxane, and dimethylsulphoxide, together with Reference Value Standards base...

yeast cells, similarly to cells of other eukaryotic organisms, possess intracellular organelles, including that of peroxisomes also known as microbodies . Enzymes of oxidative metabolism, mainly hydrogen peroxide generating oxidases, catalase, some enzymes of glyoxylic cycle and enzymes involved in catabolism of unusual carbon sources (n-alkanes, methanol) are located in peroxisomes. Especially...

Introduction The steam reforming of alcohols, particularly methanol and ethanol, presents a promising method of producing hydrogen. Due to its high activity at relatively low temperatures, Pd/ZnO has received attention as a methanol steam reforming (MSR) catalyst to produce H2 at very high CO2 selectivity. 1 Pd supported on most other materials dehydrogenates methanol to CO. Similarly, Co catal...

Modification of conventional Pt/C electrocatalyst with silicomolybdic acid (SiMoA) was performed using electrochemical cyclic voltammetry method. The modified and unmodified catalysts were tested under identical conditions for electrooxidation of CO, methanol, and ethanol. In the CO-stripping experiments, the modified catalyst was characterized by significant shifts (80 and 60 mV) to lower onse...

Based on ethnopharmacological information, four different varieties of seeds were obtained from authentic seed suppliers. Ethanol, methanol, acetone, chloroform and petroleum ether seed extracts were assessed for antibacterial activity against wound isolates of Multi Drug Resistant Methicillin Resistant Staphylococcus aureus (MDR-MRSA). Ethanol, methanol and acetone extracts of Moringa oleifera...

We recently showed that methanol emitted by wounded plants might function as a signaling molecule for plant-to-plant and plant-to-animal communications. In mammals, methanol is considered a poison because the enzyme alcohol dehydrogenase (ADH) converts methanol into toxic formaldehyde. However, the detection of methanol in the blood and exhaled air of healthy volunteers suggests that methanol m...