Construction and evaluation of a flow injection micro-analyser based on urethane-acrylate resin.

A flow injection micro-analyser with an integrated injection device and photometric detection is described. Channels measuring 205-295 microm depth by 265-290 microm maximum width were manufactured by deep UV lithography on two layers of urethane-acrylate oligomers-based photoresist. Hypodermic syringe needles (450 microm diameter) were connected to the channels for introduction of solutions into the system.