A method for extraction and determination of 2,4-dinitro phenylhydrazones of keto acids.
D006835:Hydrazones; D007651:Keto Acids / Q000737:chemistry*; D010659:Phenylhydrazines / Q000031:analogs & derivatives
D006835:Hydrazones; D007651:Keto Acids; D010659:Phenylhydrazines; C012483:phenylhydrazone; C030299:phenylhydrazine
KETO ACIDS/chemistry; PHENYLHYDRAZINE/related compounds