PROPRIETARY INFORMATION
CONFIDENTIAL MATERIAL
Not for Customer Distribution
Assays/Reagents
AEROSET
®
System Troubleshooting Guide
165
94816-107—November 2004
During RF precision studies on the AEROSET
and
c
8000
®
, how many points were below the
LOQ of 10, and excluded for the Level 1
control?
None. Excluding data points from the
precision study would have prevented
achieving the correct number of test results
per the NCCLS protocol.
Before performing any studies that involved a
control (either for testing or assay validity
check), a lot of Bio-Rad Liquichek
Immunology controls requires setting Action
Limits. If a specific control lot had a result for
the Level 1 control that was too low, it was
not assigned an Action Limit or used in
subsequent studies. In those cases, only
Level 2 and 3 materials were used.
The frequency of obtaining a Level 1 control
with a concentration too small is dependent
on Bio-Rad manufacturing processes.
If RF is not inverted before use, what errors are
observed?
A specific study has not been performed.
However, if latex particles have settled to the
bottom of the reagent cartridge and are not
pipetted, it is possible that low absorbance
values could be observed.
Is the Hitachi method for RF a turbidimetric
method?
Boehringer Mannheim reagents for use on
Hitachi instruments are described by the BM
package inserts as “immunological
agglutination” which is a turbidimetric
method.
Is the assay number for the new RF assay the
same as the original RF assay?
Yes. However, this it not an issue because the
“original” RF assay was never released to
customers.
A new Import Disk—Serum Proteins
Version 2.0 was released with the new RF
assay.
Conv Units SI Units
Old Import Disk LN 4E43-03
4E43-06
New Import Disk LN 2K89-02
2K90-02
Frequently Asked Questions (FAQ) (Continued)
Question
Response
Содержание AEROSET
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