AOAC GFA Stakeholder Program Meeting Book (March 15, 2023)
Recovery and precision ELISA kit B
Analyst 1
Analyst 2
Analyst 3
ppm Sesame
Sample ID
RSD ppm f
% Rec. g
% Rec. g
% Rec. g
RSD ppm f
Avg. OD ± SD e
RSD ppm f
Avg. OD ± SD e
Avg. OD ± SD e
Muffin b
M-0 d
0 5
0.12 ± 0.01 1.55 ± 0.07 1.96 ± 0.52 3.28 ± 0.09 0.14 ± 0.01 1.22 ± 0.03 2.04 ± 0.07 3.24 ± 0.24 0.11 ± 0.003 1.35 ± 0.06 1.90 ± 0.03 2.70 ± 0.13 0.28 ± 0.06 1.28 ± 0.09 1.97 ± 0.16 2.70 ± 0.21
0.11 ± 0.01 1.21 ± 0.14 2.18 ± 0.11 2.86 ± 0.20 0.11 ± 0.002 1.10 ± 0.06 1.76 ± 0.09 2.81 ± 0.08 0.10 ± 0.01 1.24 ± 0.10 1.93 ± 0.10 2.85 ± 0.03 0.13 ± 0.04 0.97 ± 0.06 1.60 ± 0.06 2.52 ± 0.05
0.19 ± 0.01 1.22 ± 0.07 2.10 ± 0.12 3.03 ± 0.14 0.21 ± 0.003 1.03 ± 0.11 1.81 ± 0.02 2.74 ± 0.12 0.24 ± 0.05 1.65 ± 0.04 2.54 ± 0.05 3.40 ± 0.07 0.18 ± 0.01 1.37 ± 0.05 2.05 ± 0.06 2.99 ± 0.03
11.0 16.8 54.8 i
7.2
7.1
M-5
4.4
221 168 183
10.7
144 210 137
4.7 5.3 4.3
142 217 215
21.0 i 41.0 i
21.7 i 64.4 i
M-10 M-30
10 30
25.1
4.7 6.7
2.7
Spice Mix
S-0 d
0 5
7.6
6.3
5.7
S-5
1.8 3.4 7.1
153 181 177
4.8 4.8 2.8
127 134 131
9.1 0.9 4.2
114 151 156
18.1 53.0 i
13.4 39.3 i
15.1 46.8 i
S-10 S-30
10 30
Hummus c
S-0 d
0 5
(Day 1)
12.1 25.6 i 65.6 i
8.4
10.1 24.7 i 54.4 i
H-5
4.3 1.5 4.6
242 256 219
7.6 4.8 1.1
168 170 127
2.4 1.8 1.9
201 247 181
17.0 38.1 i
H-10 H-30
10 30
Hummus c
S-0 d
0 5
(Day 7)
12.5 25.2 i 44.6 i
7.4
8.9
H-5
5.6 6.9 7.2
250 252 149
5.4 3.2 1.8
147 156 128
3.1 2.7 1.1
178 190 160
15.6 38.5 i
19.0 48.1 i
H-10 H-30
10 30
RSD <15%, except one sample by one analyst (25%). Recovery- high recovery was observed compared to ELISA kit A for all samples, limited to 256%. Hummus day 1 samples showed the highest recovery of all. Sesame recovery from spice mix was better compared to ELISA kit A.
25
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