Fig. 3From: Simple and rapid method for analysis of urinary vancomycin using solid phase extraction and fluorescence spectroscopya The relationship between elution volume and quantity of VCM, b relationship between ratio of DMSO to 10% methanol solution and quantity of VCM. Fluorescence spectra were obtained when excited at 290 nm. The sample volume was adjusted to 300 μL by adding 10% methanol solution before the fluorescence analysisBack to article page