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AOAC OMB Meeting Materials

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ERP SUMMARY FOR FIRST TO FINAL ACTION METHOD RECOMMENDATION

AOAC No.

OMA# 2017.03 (Amino‐02) ‐  HPLC Determination of Total Tryptophan in Infant Formula and  Adult/Pediatric Nutritional Formula Following Enzymatic Hydrolysis

GUIDANCE FOR AOAC ERPS ‐ APPENDIX G 1 Considered? Comments/Reference if applicable Method Applicability  Yes 

Method is applicable to infant formula and  pediatric/adult nutritional products in both powder  and liquid forms.  No recommendations or improvements required 

ERP First Action to Final Action  recommendations & improvements 

No 

Draft Final Action method reviewed by ERP Yes 

Via e‐Ballot 

Safety Concerns  ReferenceMaterials 

No  Yes  Yes 

NIST SRM 1849a 

Journal of AOAC INTERNATIONAL VOL. 101, NO.  3, 2018  Journal of AOAC INTERNATIONAL VOL. 101, NO.  4, 2018 

Single Laboratory Validation 

Reproducibility/Uncertaintyand  Probability of Detection 

Yes 

Comparison to SMPR ( SMPR criteria met?)

Yes  Yes 

Feedback from Users of Method 

DOCUMENTATION  (see Methods book ) 

Comments

Available?

Part of ERP Review and Discussions 

Safety Evaluation  ReferenceMaterials 

Yes  Yes  Yes  Yes  Yes  Yes  Yes 

NIST SRM 1849a 

SLV 

SLV or PTM 

Based on OMA, Appendix L 

Approved Validation Protocols 

Part of ERP Review and Discussions 

Statistics Review 

2017.03 

Method Published in OMA 

Method Performance vs SMPR criteria 

Feedback Information 

Addressed as part of ERP discussions and in  SPIFAN 

Additional Recognition(s) 

No  Yes  Yes 

ERP Reports 

August 25, 2018 

Journal of AOAC INTERNATIONAL VOL. 101, NO.  3, 2018  Journal of AOAC INTERNATIONAL VOL. 101, NO.  4, 2018 

Manuscript(s) Published in JAOAC 

ERP Method Recommendation   (Final Action/Repeal/Continuation) 

Yes 

Final Action 

1 Official Methods of Analysis of AOAC INTERNATIONAL , Appendix G: Procedures and Guidelines for the Use of AOAC Voluntary Consensus Standards  to Evaluate Characteristics of a Method of Analysis, p.3 “ First Action to Final Action Methods: Guidance for AOAC Expert Review Panels.”  01.30.2019