Determine with the gaseous phase chromatograph of the electron catching device of little pool after the silicon alkanisation,mark legal quantity outside.
The pyrolysis membranes from silicon resin would be applied to membrane reactors, owing to its higher resistance to temperature and better permselectivity.
The new methods mainly contain the adsorption of natural materials, modification materials, humic acids, biosorption, quod of silicon micro encapsulization and nanotechnology.