Degradation and transformation of carbamazepine in aqueous medium under non-thermal plasma oxidation process.

Carbamazepine (CBZ) is a pharmaceutical compound detected in various water resources. With a view to removing this contaminant, the applicability of non-thermal plasma (NTP) oxidation process has been widely tested in recent years. This study utilized NTP from a dielectric barrier discharge reactor in the treatment of CBZ.

Investigation of matrix effects for some pesticides in waters by on-line solid-phase extraction-liquid chromatography coupled with triple quadrupole linear ion-trap mass spectrometry and the use of postcolumn introduction.

The effect of analytical conditions on on-line SPE-LC/MS/MS was investigated. Real matrix-induced signal suppression or enhancement due to the ionization process was simulated by using postcolumn introduction experiments. Results were compared with global matrix effects that occur during a routine analysis.