AOAC ERP MICRO AUGUST 2018

B ird et al .: J ournal of aoaC i nternational V ol . 99, n o . 4, 2016 987

Table 2016.01D. Comparative results for the detection of Salmonella at three inoculum levels in peanut butter by the 3M MDA 2 – Salmonella method versus FDA BAM reference method in a collaborative study

Candidate presumptive

Candidate confirmed

Candidate result

Reference method

Candidate versus reference

Matrix and inoculation level Creamy peanut butter, uninoculated control

Statistic

POD CC

POD C

POD R

dLPOD C

dLPOD CP

Laboratory

N X POD CP N X

N X

N X

1 2

12 0 0.00 12 0 0.00 12 12 0 0.00 12 0 0.00 12 12 1 0.08 12 2 0.17 12 12 0 0.00 12 0 0.00 12

0 0.00 12 0 0.00 12 1 0.08 12 0 0.00 12

0 0.00 0.00 0 0.00 0.00

0.00 0.00

3 a

0 0.00 0.08 −0.09

4

0 0.00 0.00

0.00

5 b NA c NA NA NA NA NA NA NA NA NA NA NA NA NA 6 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 7 a 12 1 0.08 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.08 8 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 9 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 10 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 11 b NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 13 12 2 0.17 12 0 0.00 12 0 0.00 12 0 0.00 0.17 0.00 14 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 15 12 0 0.00 12 0 0.00 12 0 0.00 12 0 0.00 0.00 0.00 16 d NA NA NA NA NA NA NA NA NA NA NA NA NA NA

Estimate

All

132 2 0.01 132 0 0.00 132

0 0.00 132 0 0.00 0.00

0.01

LCL e UCL f

0.00 0.05 0.11 0.10 0.16 0.04 0.01 0.08 0.12 0.11 0.15

0.00 0.03 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.00 0.03 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.00 −0.03 −0.01

0.03 0.03

0.05

0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

s r

LCL UCL

s L

LCL UCL

s R

UCL LCL

0.0265

1.0000

1.0000

1.0000

P T

Creamy peanut butter, low inoculum level

1 2 12 6 0.50 12 6 0.50 12 12 8 0.66 12 8 0.66 12 12 5 0.42 12 6 0.50 12 12 6 0.50 12 6 0.50 12 5 b NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6 12 9 0.75 12 8 0.66 12 8 0.66 12 8 0.66 0.00 0.09 7 a 12 10 0.83 12 8 0.66 12 8 0.66 12 7 0.58 0.08 0.17 8 12 6 0.50 12 6 0.50 12 6 0.50 12 5 0.42 0.08 0.00 9 12 7 0.58 12 7 0.58 12 7 0.58 12 8 0.66 −0.08 0.00 10 12 7 0.58 12 7 0.58 12 7 0.58 12 5 0.42 0.16 0.00 11 b NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 12 5 0.42 12 5 0.42 12 5 0.42 12 6 0.50 −0.08 0.00 13 12 9 0.75 12 8 0.66 12 8 0.66 12 5 0.42 0.24 0.09 14 12 7 0.58 12 7 0.58 12 7 0.58 12 8 0.66 −0.08 0.00 15 12 8 0.66 12 8 0.66 12 8 0.66 12 6 0.50 0.16 0.00 16 d NA NA NA NA NA NA NA NA NA NA NA NA NA NA ERP Use Only 6 0.50 12 8 0.66 12 5 0.42 12 6 0.50 12 6 0.50 0.00 6 0.50 0.16 0.00 0.00 3 a 5 0.42 0.00 −0.08 4 5 0.42 0.08 0.00