These Positive Displacement Microdispensers consist of a plunger that fits tightly into the inside bore of a precision glass or plastic capillary. Pressing the microdispenser's thumb button pushes the plunger down the capillary, expelling any fluid/sample. During the downstroke, the plunger's tip slides along the inside of the capillary pushing out fluid residues that normally adhere there. Then at the bottom of the stroke, the tip extends slightly beyond the capillary end, assuring full sample delivery.
Custom spacers available permitting fractional deliveries
Overall volumetric accuracy of }1%
Precision moulded plastic bores on model 390
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