AOAC GFA Stakeholder Program Meeting Book (August 27, 2023)

PAGE SIX – SELECTIVITY STUDY - INTERFERENCE

Number of Matrices Claimed

5

1

2

3

4

Whea t Barley Rye Oats Whea t

Wheat Barley Rye Oats

Wheat Barley Rye Oats

Wheat Barley Rye Oats

Wheat Barley Rye Oats

Matrix A

Matrix B Matrix C Matrix D Matrix E

Wheat

Wheat Wheat

Barley Barley Barley

Rye

Rye

Oats

Table 1. Rotation of gluten sources across claimed matrices for methods claiming to detect wheat, rye and barley. The rotation of single gluten sources would continue for six matrices and greater.

Number of Matrices Claimed 1 2 3

5

4

Wheat Barley Rye

Wheat Barley Rye

Wheat Barley Rye

Wheat Barley Rye

Wheat Barley Rye

Matrix A Matrix B Matrix C Matrix D Matrix E

Wheat

Wheat

Wheat

Wheat

Barley Barley Barley

Rye

Rye

Wheat

Table 2. Rotation of gluten sources across claimed matrices for methods claiming to detect wheat, rye, barley and oats. The rotation of single gluten sources would continue for six matrices and greater.

I think that Table 1 and Table 2 descriptions are under the wrong table each.