Answer to Question #88519 in Chemistry for Primesh

Question

Describe the methods used for collecting gaseous sample for environmental analysis

Answer 1

Grab sampling method - air is collected by filling the evacuated flask.

Absorption in liquids - air is brought to a contact with a liquid.

Adsorption on solids - air is brought to a contact with a solid.

Freeze-out sampling - includes a series of cold traps to condensate air pollutants from air.