Review Book

Reviewer 6

Too lengthy. Reader was unable to keep track of data between the multiple PTM studies.

10. Is the Validation Study Manuscript in a format acceptable to AOAC? Reviewer 1 YES Reviewer 2 YES Reviewer 3 YES Reviewer 4 YES Reviewer 5 YES Reviewer 6 YES

11. Is the method described in sufficient detail so that it is relatively easy to understand, including equations and procedures for calculation of results (are all terms explained)? Reviewer 1 YES Reviewer 2 YES Reviewer 3 YES Reviewer 4 YES Reviewer 5 YES Reviewer 6 YES 12. Are the figures and tables sufficiently explanatory without the need to refer to the text? Reviewer 1 YES Reviewer 2 YES Reviewer 3 YES Reviewer 4 YES Reviewer 5 NO 1. On Table 2020. 2A, It is not registered for Laboratory 1 the recovery of the target analyte in its non inoculated sample controls.

2. On page 21 of the manuscript :Did the Laboratory 14 not included in the study because it did not send the temperature data upon receipt of the samples?

Reviewer 6

YES

13. Are all the figures and tables pertinent? Reviewer 1 YES Reviewer 2 YES Reviewer 3 YES Reviewer 4 YES Reviewer 5 YES Reviewer 6 YES

14. Could some be omitted and covered by a simple statement? Reviewer 1 NO