Hydrazone
From Academic Kids
In chemistry, a hydrazone is a compound with the structure R2C=NNR2, differing from a ketone or aldehyde by the replacement of the double bonded oxygen with the =NNR2 functional group. They are formed usually by the action of hydrazine on ketones or aldehydes.
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Use
The formation of aromatic hydrazone derivatives is used to measure the concentration of light aldehydes and ketones in gases. These compounds are derivatized by dinitrophenylhydrazine, usually coated on a silica sorbent inside an adsorption cartridge. The hydrazones are then eluted and analyzed by HPLC using a simple UV detector.
