[Microdialysis: a method to construct a microdialysis probe and its applications].

This paper describes a removable microdialysis probe constructed inexpensively and easily from a commercially available iv catheter placement unit and flexible fused silica tubing. The probe is characterized in in vitro recovery tests. As an example of its applications, experimental results measuring extracellular dopamine concentrations in the nucleus accumbens of rats during intracranial self-stimulation behavior are reported.