AOAC Gluten Qualitative Validation Guidance-FINAL (July 2023)

AOAC GFA Program (Gluten)1
Qualitative Validation Guidance Main2
1. Scope3
2. Applicability3
3. Terms and Definitions3
References3
Definitions4
3.1 Analyte4
3.2 Candidate Method4
3.3 Candidate Method Result4
3.4 Claimed Detection Capability (CDC)4
3.5 Collaborator4
3.6 Cross-reactivity4
3.8 Data Set4
3.9 Fractional POD Range4
3.10 Gluten4
3.11 High-Dose Hook Effect4
3.12 Incurred Test Material4
3.13 Independent Testing Site4
3.14 Interference Study4
3.15 Lateral Flow Device (LFD)4
3.16 LPOD4
3.17 Matrix4
3.18 Measurand4
3.20 Method5
3.21 Probability of Detection (POD)5
3.22 Qualitative Binary Method5
3.23 Repeatability5
3.24 Reproducibility5
3.25 Robustness Study5
3.26 Selectivity5
3.27 Spiked Test Material5
3.28 Test Material5
3.29 Test Portion5
3.30 Test Sites5
4. Method Validation6
4.1 Method Developer Validation Study6
4.1.1 Scope6
4.1.2 Selectivity study6
4.1.3 Matrix / POD study7
4.1.4 Data analysis and reporting for selectivity and matrix / POD studies8
4.1.5 Intended use statement8
4.1.6 Robustness study8
4.1.7 High-Dose Hook Effect Study8
4.1.8 Method Instructions8
4.1.9 Product consistency and stability study9
4.2 Independent Lab Validation Study9
4.2.1 Scope9
4.2.2 Matrix Study9
4.2.3 Data Analysis and Reporting10
4.3 Collaborative Study10
4.3.1 Scope10
4.3.2 Number of Collaborators10
4.3.3 Matrix / POD study10
4.3.4 Data analysis and reporting10
4.3.5 Collaborator comments10
4.4 Matrix Extension11
4.4.1 Matrix Extension for single lab validation studies11
4.4.2 Matrix Extension for multi-site collaborative studies11
ANNEX A - Inclusivity-Exclusivity Panel (Selectivity Study)12
ANNEX B - Test Material Preparation14
ANNEX C - Matrix Categories19
ANNEX D - Robustness Study Design and Analysis23
COMMENTS & RESPONSES31
Working Group Document Comments with Responses (Round 1)31
Working Group Document Comments with Responses (Round 2)53
Public Comments with Responses (FINAL)57

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