An adsorbant such as zeolite traps the NO and NO 2 molecules acting as a molecular sponge.
2.
At the time elemental analysis was based on gravimetric determination of specific adsorbant materials before and after selective adsorption of the combustion gases.
3.
In addition, for any substance to imbibe any liquid, affinity between the adsorbant and the liquid is also a pre-requesite.
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