TRAVISTRA

 HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY It is a method used for the separation, purification, and identification of various nonvolatile high molecular weight organic compounds and natural products like cholesterol, terpenoids. ADVANTAGES High-speed separation Excellent column separation Solvent consumption is minimum Sensitive and accurate Separation can be done at an ambient temperature. PRINCIPLE The components of the mixture are separated depending upon the extent of adsorption and partition on the stationary phase and the rate at which the component is carried by the mobile phase. The mobile phase is liquid and the stationary phase can be solid or liquid. INSTRUMENTATION Solvent reservoirs are used to collect the different solvents. Pressure pump to apply pressure  Sample injector to give the mixture which is to be separated in the analytical column Regulator to adjust the flow rate Guard column to remove the particulate matter and contaminants from the solvent. The analyt...

 FUEL CELL They are electrochemical cells. It is an energy conversion device or electricity generator. ADVANTAGES Fuel cells are efficient and convert about 75%-83% of available chemical energy to electrical energy. The electrode materials are supplied in the gaseous form. Examples H2 , CO, hydrocarbons, coal gas, producer gas etc. It is light, compact, simple and easy to maintain    Whatever may be the electrode material, CO2 and H2O should be the end products. The concentration of the electrolyte remains invariant. Less green house and noise pollution. They can be stacked and connected in series to generate higher voltage without making any noise. Reduces the thermal pollution from power generation. HYDROGEN-OXYGEN FUEL CELL It is based on the reaction, combustion of H2 in O2 to form water. 2H2 +O2   ------->          2H2O       The cell consist of two electrodes made of porous graphite, impregnated with plat...