CELL-DYN
3000 System Operator’s Manual
4-13
9140240E — May 1995
Chapter 4
System Specifications
Carryover
Carryover is determined by running samples with high concentrations of
WBCs, RBCs, HGB and PLTs. Each sample is run in triplicate followed
by three background cycles. The percent carryover is calculated using the
following formula:
% Carryover
= Background
1
- Background
3
x 100
______
Sample
3
- Background
3
Absolute Carryover = Background
1
- Background
3
Table 4.12:
Carryover for WBC, RBC, HGB and PLT
WBC
RBC
HGB
PLT
Level
90K/
µL
6.9M/
µL
20.6 g/dL
721 K/
µL
Carryover
(in % or
Absolute)
<1.0 % or
<0.1
<1.0 % or
<0.03
<1.0 % or
<0.1
<1.0 % or
<10
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