The following points highlight the three main types of chromatography. The types are: 1. Adsorption Column Chromatography 2. Thin Layer Chromatography 3. Gas Chromatography. Type # 1. Adsorption Column Chromatography: The general chromatography method was introduced into biology by Tswett in 1906 and various adsorbents such as starch and aluminium oxide are poured as a slurry into a long glass [...]
The following points highlight the top nine instruments that are used in microbiology. The instruments are: 1. Spectrophotometry 2.Autoradiography 3. Centrifugation 4. Electrophoresis 5. Gel Filtration 6. Hot-Air Oven 7. Autoclave 8. Laminar Air Flow 9. Incubator. Instrument # 1. Spectrophotometry: A spectrophotometer is a sophisticated type of colorimeter where monochromatic light is provided by a grating or prism. The [...]
The below mentioned article provides notes on allergens. In 1906, Anton Van Pirquet introduced the term allergy to denote any altered capacity of body to react with a foreign substance. Now it is established that these phenomena are mediated by immune responses of the body. However, if an immunological cause damages the body cells, it is called hypersensitivity. Now-a-days, the [...]