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7-14
CELL-DYN
3000 System Operator’s Manual
9140240E — May 1995
Quality Control
Chapter 7
•
Store the controls at recommended temperatures. Storage in a
central location in the refrigerator, away from the door if it is
opened frequently, is advisable.
•
Carefully warm and resuspend the product according to the
directions given in the package insert. Proper mixing is essential
for accurate results.
•
Check the open-vial stability dating and do not use products longer
than is recommended as results may be compromised.
•
Wipe the threads on the vial and the inside of the cap.
•
Never subject a vial to excessive heat or agitation.
Assay Verification
New lots of control material should be analyzed in parallel with current
lots prior to their expiration dates. This may be accomplished by running
the new controls twice a day for five days. The mean of the ten runs is
used to confirm the assay value. A control file is set up for the new lot
number to easily establish the mean. If desired, this same control file can
then be used to run the control for the remainder of the dating period.
Creating another file is not required.
The expected ranges published by manufacturers are generally too broad
for effective
Therefore, each laboratory should establish
acceptable ranges. These ranges may be determined by evaluating three
to six months of data (data from the Interlaboratory Quality Control
Program may be used) for a particular level of control. The individual SD
values may be averaged as follows:
where:
N =
number of values in a group
SD =
Standard Deviation of the values
i
=
the last group of values
The resultant long-term instrument SD and the laboratory-established
mean for each lot number should be used to monitor instrument
performance.
Average SD =
(N1 x SD1
2
)+(N2 x SD2
2
)+...(Ni x SDi
2
)
(N1 + N2 + ...Ni) - 1
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Страница 31: ...10 CELL DYN 3000 System Operator s Manual 9140240E May 1995 NOTES Search Go Back Book TOC ...
Страница 265: ...6 10 CELL DYN 3000 System Operator s Manual 9140240E May 1995 Calibration Chapter 6 NOTES Search Go Back Book TOC ...
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Страница 351: ...7 2 CELL DYN 3000 System Operator s Manual 9140240E May 1995 Quality Control Chapter 7 NOTES Search Go Back Book TOC ...
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Страница 387: ...9 6 CELL DYN 3000 System Operator s Manual 9140240E May 1995 Maintenance Chapter 9 NOTES Search Go Back Book TOC ...
Страница 405: ...9 24 CELL DYN 3000 System Operator s Manual 9140240E May 1995 Maintenance Chapter 9 NOTES Search Go Back Book TOC ...
Страница 431: ...10 2 CELL DYN 3000 System Operator s Manual 9140240E May 1995 Troubleshooting Chapter 10 NOTES Search Go Back Book TOC ...
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