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: J
ournal of
AOAC I
nternational
V
ol.
98, N
o.
6, 2015
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Table 4. Collaborative study results for free myo-inositol with outliers removed
Sample type
Total No.
labs
a
Total No.
replicates
b
Mean,
mg/100 g
RTF
SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
10 (0)
22 (0)
412
c
11.3
11.4
2.75
2.77
0.43
Infant formula powder soy-based
10 (0)
22 (0)
4.22
0.127 0.305
3.03
7.26
0.80
Infant formula powder milk-based
10 (2)
20 (4)
4.23
0.066 0.109
1.56
2.57
0.28
Infant formula RTF milk-based
9 (1)
20 (2)
7.20
0.046 0.185
0.63
2.57
0.31
Infant formula powder partial hydrolyzed milk-based 10 (2)
22 (4)
3.83
0.037 0.089
0.96
2.33
0.25
Infant formula powder partial hydrolyzed soy-based 10 (0)
22 (0)
3.11
0.090 0.389
2.92
12.6
1.32
Child formula powder
10 (2)
22 (4)
5.05
0.023 0.109
0.46
2.15
0.24
Infant elemental powder
10 (1)
22 (2)
5.13
0.095 0.277
1.85
5.41
0.61
Infant formula RTF milk-based, unfortified
9 (0)
20 (0)
3.17
0.058 0.091
1.84
2.87
0.30
a
Number of laboratories submitting data (number of laboratories with data removed as outliers).
b
Number of samples with results submitted (number of samples removed as outliers).
c
Data reported as mg/kg powder.
Table 5. Collaborative study results for phosphatidylinositol bound myo-Inositol with outliers removed
Sample type
Total No.
labs
a
Total No.
replicates
b
Mean,
mg/100 g
RTF
SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
9 (1)
20 (2)
9.26
c
1.08
2.37
11.3
25.0
2.19
Infant formula powder soy-based
9 (0)
20 (0)
2.10
0.150
0.501
6.94
23.2
2.30
Infant formula powder milk-based
9 (0)
18 (0)
0.667
0.026
0.172
3.92
25.9
2.15
Infant formula RTF milk-based
8 (0)
18 (0)
0.348
0.030
0.091
8.36
25.2
1.91
Infant formula powder partial hydrolyzed milk-based 9 (0)
20 (0)
0.214
0.010
0.058
4.72
26.4
1.86
Infant formula powder partial hydrolyzed soy-based 9 (0)
20 (0)
1.64
0.094
0.358
5.53
21.1
2.02
Child formula powder
9 (0)
20 (0)
0.328
0.023
0.088
6.89
25.8
1.94
Infant elemental powder
9 (0)
20 (0)
0
0
0
0
0
0
Infant formula RTF milk-based, unfortified
8 (0)
20 (0)
0.305
0.024
0.085
7.71
26.9
2.00
a
Number of laboratories submitting data (number of laboratories with data removed as outliers).
b
Number of samples with results submitted (number of samples removed as outliers).
c
Data reported as mg/kg powder.
Table 6. Collaborative study results for free plus phosphatidylinositol bound myo-inositol with outliers removed
Sample type
Total No.
labs
a
Total No.
replicates
b
Mean,
mg/100 g
RTF
SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
9 (0)
20 (0)
422
c
11.9
11.9
2.83
2.83
0.44
Infant formula powder soy-based
9 (0)
20 (0)
6.27
0.147
0.446
2.32
7.05
0.82
Infant formula powder milk-based
9 (1)
18 (2)
4.94
0.070
0.302
1.41
6.12
0.69
Infant formula RTF milk-based
8 (1)
18 (2)
7.53
0.059
0.201
0.78
2.66
0.32
Infant formula powder partial hydrolyzed milk-based 9 (2)
20 (4)
4.04
0.038
0.124
0.94
3.07
0.33
Infant formula powder partial hydrolyzed soy-based 9 (0)
20 (0)
4.71
0.152
0.357
3.22
7.55
0.84
Child formula powder
9 (1)
20 (2)
5.42
0.028
0.285
0.51
5.23
0.60
Infant elemental powder
9 (1)
20 (2)
5.11
0.099
0.283
1.94
5.56
0.63
Infant formula RTF milk-based, unfortified
8 (0)
18 (0)
3.46
0.066
0.128
1.90
3.70
0.39
a
Number of laboratories submitting data (number of laboratories with data removed as outliers).
b
Number of samples with results submitted (number of samples removed as outliers).
c
Data reported as mg/kg powder.
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