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A hydrazone is a class of organic compounds with the structure R2C=NNR2. They are related to ketones and aldehydes by the replacement of the oxygen with the NNR2 functional group. They are formed usually by the action of hydrazine on ketones or aldehydes.
The formation of aromatic hydrazone derivatives is used to measure the concentration of low molecular weight aldehydes and ketones, e.g. in gas streams. For example, dinitrophenylhydrazine coated onto a silica sorbent is the basis of an adsorption cartridge. The hydrazones are then eluted and analyzed by HPLC using a UV detector.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hydrazone". A list of authors is available in Wikipedia.|