Shimadzu UV2600
English
Shimadzu UV2600 double beam UV-Vis spectrophotometer for solid and liquid samples with integrating sphere accessory for diffuse reflectance measurements on powders.
UV-Vis spectrophotometry
Electrochemical oxidation of theophylline in organic solvents: HPLC‐PDA‐ESI‐MS/MS analysis of the oxidation products
The electrochemical oxidation of theophylline was investigated by controlled potential electrolysis in two different organic solvents and in water for comparison. The anodic oxidation was monitored by cyclic voltammetry in situ and UV‐Vis spectrophotometry ex situ and the final electrolyzed solutions were analyzed by tandem mass spectrometry after chromatographic separation with an HPLC‐PDA‐ESI‐MS/MS system.