TY - GEN AU - KAWANO,C AU - KATSUKI,H AU - YOSHIDA,T AU - TANAKA,S TI - A method for extraction and determination of 2,4-dinitro phenylhydrazones of keto acids SN - 0003-2697 PY - 1998///1101 KW - Hydrazones KW - Keto Acids KW - chemistry KW - Phenylhydrazines KW - analogs & derivatives N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/0003-2697(62)90064-7 ER -