Abstract
Numerous methods have been developed for the quantitative determination of carbonyl compounds with 2,4-dinitrophenylhydrazine. Generally, it is necessary to separate the prepared hydrazone from excess reagent before final measurement. A simplified method for the determination of aldehydes and ketones is presented in which excess 2,4-dinitrophenylhydrazine in the presence of hydrazone is titrated with standard sodium nitrite solution.
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