din trophenylhydrazinedinitrophenyl hydrazinedinitrophenylationdpnh二: two肼: hydrazine; hydrazinium二硝基苯肼法: fluorometric method and colorimetric method 4 dinitrophenylhydrazine2,4-二硝基苯肼: 2,4-dinitrophenylhydrazine; dnp-hydrazine二硝基苯肼反应: dinitrophenylhydrazine reaction下载手机词典可随时随地查词查翻译