Arkray SPOTCHEM EZ SP-4430, Operating Manual, Page: 41 / 139

C SP-4430 ● 2-15
Chapter 2 MEASUREMENT
Using a centrifuge
Prepare a centrifuge.
Uncap the tube and pipette 250 μL of
heparinized whole blood or plain blood into
the centrifuge tube.
The centrifuge tube includes Heparin as an
anticoagulant.
Close the cap tightly after setting a sample,
and invert it.
Use the sample after removing the cap.
Wipe out the sample attached to the outside
of centrifuge tube before placing it to the
centrifuge, otherwise it may spattering the
sample.
Place samples in the centrifuge ( see“ 2-4-1
Normal measurement”).
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Remove any air bubbles or skin on the surface of
the sample. They may cause incorrect measurement
results.
Wipe out the sample attached to the outside of
centrifuge tube before placing it to the centrifuge,
otherwise it may cause spattering the sample .
IMPORTANT
A Centrifuge tube has 1 line
marked on it for 250
μL
.
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The samples may coagulate when it takes time
before the samples collected are brought into the
machine. Those showing heavy coagulation or
deposition of fibrin sometimes can not be measure.
A syringe containing heparin can be used to
prevent coagulation when it takes time before the
samples are brought into the centrifuge, although
the machine contains heparin.
IMPORTANT