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Socorex® Acura® positive Capillary Micropipettes ensure a high level of accuracy and reproducibility for dispensing applications from 1µL to 200µL with elongated tip. Each positive displacement model provides five preset volume selections that are locked in — a design feature that eliminates errors and ensures consistent, repetitive delivery of samples. The PTFE tipped plunger draws the sample into a precision glass capillary tube. The 5µL model has a stainless steel plunger. Dead volume is eliminated and the volume dispensed is always the same regardless of viscosity. The movement of the plunger completely removes any residue from the capillary for increased accuracy. Sample integrity is preserved and if contamination of the plunger occurs from radioactivity, etc., economically priced replacement plungers are available which can be discarded after use.