(MS-7P) Seven-Barrel Iontophoresis Micropipette

A standard blank consists of seven barrels of Pyrex Omegadot tubing. The overall length of the blank assembly is 10 cm. Individual tubes are 1.5 x 1.2 mm (OD x ID) and are pre-pulled to the 2 mm formation shown. The design of this micropipette readily accommodates both electrical and pneumatuc connections. The user can either insert Ag-AgCl electrode wires or attach the tubes to pneumatic pressure outlets. The micropipette is supplied as either pre-pulled blanks or fully-pulled to a micron tip as shown. The micron tip is not bumped and can be finalized prior to use. 7-Barrel configurations are available as pre-pulled and also as fully pulled blanks.

• The orifice ratio of each barrel is 0.80 and is optimized for minimal tip resistance when pulled to micron size
• Omegadot tubing permits easy filling
• Fanned-out outer barrel assembly provides separation which avoids leakage and cross-coupling between barrels
• The 22 mm (length) twisted segment of the blank assembly assures singular tip formation during the pulling action. This provides flexibility in the selection of a desired tip configuration