IDENTIFICATION OF THE POSITIONAL ISOMERS OF 2-FLUOROBENZOIC ACID 1-O-ACYL GLUCURONIDE BY DIRECTLY COUPLED HPLC-NMR - SIDELMANN,UG; GAVAGHAN,C; CARLESS,HAJ; FARRANT,RD; LINDON,JC; WILSON,ID; NICHOLSON,JK (ANALYTICAL CHEMISTRY, 1995)