Luggin capillary is used for electrochemical measurements. The Luggin holds the reference electrode and is near the working electrode. The reference electrode senses the solution potential at this open tip. A variety of Luggin tubes are available for a broad spectrum of application.

Tube, Glass, Ø12mm x 120mm, PTFE Junction
QM715X-12X120-PTFE
Glass tube, Ceramic Frit, 4x100mm
QM715X-4X100-CF
Glass tube, Ceramic Frit, 4x50mm
QM715X-4X50-CF