AOAC ISPAM "Food Allergen" Working Group Questions/Comments Form
Submission ID
357553503668955068
Submission Date
2016-12-14 14:38:23
Submission IP
184.105.48.66
First & Last Name
Paul Wehling
Organization
General Mills, Inc.
E-mail Address
paul.wehling@genmills.comQuestion/Comment-1
Per LOD/LOQ definitions in the SMPR - I note that Appendix M includes these
definitions. We should harmonize the SMPR to Appendix M.
LOD is defined as the lowest concentration or mass of analyte in a test sample that can
be distinguished from a true blank sample at a
specified probability level.
LOQ is the lowest level of analyte in
a test sample that can be reasonably quantified at a specified level
of precision.
Question/Comment-2
Per discussion of including cross-reactivity in the SMPR. Appendix M does discuss this.
Perhaps good language in the SMPR would be such like - "Cross-reactivity has been
investigated as per Appendix M. Method developers should submit cross-reactivity data
and include any notable observations." or something like that.
Question/Comment-3
The concept of trueness for an ELISA method is difficult to define, let alone
experimentally estimate. We did discuss this on the last call. I think it is important for the
developer to evaluate and describe the protein sequences that their antibodies (or other
agents) bind to.
Question/Comment-4
In terms of measuring trueness, there should be some attempt made to evaluate this.
Question/Comment-5
For LOD/LOQ, LOD criteria should be lower than the LOQ criterion. I'd expect the
procedures described in Appx M to be used.
Question/Comment-6
Criterion for recovery should be symmetrical about 100%, e.g., 60-140%