by the combined use of these devices , noiseless uv tracing was successfully demonstrated in two model experiments using thermolabile two-phase solvent systems : separation of flavonoids from the sea buckthorn ethanol extract with chloroform-methanol-water ( 4:3:2 , v/v/v ) and separation of bacitracin components with chloroform-ethanol-water ( 5:4:3 , v/v/v ) .
C0001963
methanol
C0001962
ethanol