Sample is a small quantity of material taken from an object or body of matter for laboratory examination and analysis. Sampling involves selection of a minor quantity from a large bulk with the purpose of evaluating the lot. The method of collecting or obtaining and handling of samples are very crucial or critical in laboratory … Read more
The tests described in this Section are of general usefulness in the characterization and identification of bacteria, Some organisms require the use of an isolation medium specially adapted to particular nutritional or osmotic requirements. In other cases, a selective medium maybe employed which not only allows the isolation of the organisms under investigation but also … Read more
Measurements are very important in scientific work. Reagents are prepared by dissolving specified quantities in the specified solvent. The specified quantities to be dissolved are obtained by weighing out. The accuracy of measurements enables the scientist to obtain the desired concentration of.the reagent for the work he intends to do with it. Some Experiments are … Read more