狠狠撸

convergent synthesis one group disconnection linear synthesis dendrimers functional group inter conversion chemical synthesis disconnection rules two group disconnection independent synthesis methods of organic synthesis retrosynthetic analysis fragment coupling dix divergent synthesis chemical reaction retrosynthesis g.s.c. properties of liquid stationary phase liquid-gas chromatography liquid-liquid chromatography partition chromatography chromatographic terms classification gas-solid chromatography chromatographic methods method of separation solid-liquid chromatography