Voglibose, acarbose, and miglitol are α-glucosidase inhibitors and are known as anti-diabetes drugs. Those drugs have sugar structures and thus Asahipak NH2P-50 4E which is often used for sugar analysis can be used to separate them.
Sample: 0.1% each, 10μL
Column : Shodex Asahipak NH2P-50 4E (4.6mmI.D. x 250mm) Eluent : CH3CN/H2O=70/30 Flow rate : 1.0mL/min Detector : Shodex RI Column temp. : 30°C