UltraMicroPump II
World Precision instruments
16
Volume Set
Actual volume delivered
0-0.9999 nl
0
1 nl-1.999 nl
1 nl
2 nl-2.999 nl
2 nl
and so on...
Using Teflon Tipped syringes
carefully remove the plunger and its teflon tip by drawing it out of the syringe
barrel.
1.
Before inserting the plunger tip into the syringe, pre-wet the teflon plunger tip
and the syringe body interior with water.
2.
use care in inserting the plunger into the syringe as the plunger rod may be
easily bent.
3.
carefully place the plunger tip into the syringe and gently work the tip down
into the body of the syringe using a thumb and forefinger to grasp and push
small lengths of the plunger rod into the syringe. repeat this procedure until the
plunger tip is near the zero mark of the syringe.
4.
draw additional water into the syringe and slowly work the plunger up and down
until the plunger tip is cold formed into the syringe and the stiffness goes away.
the stiffness of the new plunger tip may require you to move the rod in small
increments until the tip is formed enough to actuate by the rods full length.
Wet Autoclaving Syringes
typically the answer to autoclaving any teflon syringe is no, since the adhesives
and the teflon seal will eventually breakdown or swell from the heat and pressures
involved. the most practical method of sterilizing is either gas or liquid chemical
sterilization, but both require meticulous removal of the sterilizing agents prior to use.
if you are willing to replace the syringe after a few uses then most syringes will
stand up to a few cycles of wet autoclaving. the teflon tipped plunger should be
removed for this operation. careful examination of any glued components and the
teflon tip integrity is required before reuse of an autoclaved syringe. if the teflon tip
cannot be replaced into the syringe body easily then the plunger (tip) and perhaps
the syringe requires replacement due to infusion of water. Autoclaving will usually
void the warranty on teflon tipped syringes.
Summary of Contents for UltraMicroPump II
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