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: J
ournal of
AOAC I
nternational
V
ol.
98, N
o.
6, 2015
Table 7. Collaborative study results for free myo-inositol with all data included
Sample type
Total No.
labs
Total No.
replicates
Mean,
mg/100 g RTF SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
10
22
412
a
11.3
11.4
2.75
2.77
0.43
Infant formula powder soy-based
10
22
4.22
0.127
0.305
3.03
7.26
0.80
Infant formula powder milk-based
10
20
4.26
0.168
0.232
3.95
5.43
0.60
Infant formula RTF milk-based
9
20
7.17
0.095
0.207
1.33
2.89
0.34
Infant formula powder partial hydrolyzed milk-based 10
22
3.65
0.035
0.412
0.97
11.4
1.22
Infant formula powder partial hydrolyzed soy-based 10
22
3.11
0.090
0.389
2.92
12.6
1.32
Child formula powder
10
22
5.10
0.185
0.246
3.61
4.81
0.54
Infant elemental powder
10
22
5.10
0.227
0.318
4.45
6.24
0.71
Infant formula RTF milk-based, unfortified
9
20
3.17
0.058
0.091
1.84
2.87
0.30
a
Data reported as mg/kg powder.
Table 8. Collaborative study results for phosphatidylinositol bound myo-inositol with all data included
Sample type
Total No.
labs
Total No.
replicates
Mean,
mg/100 g RTF SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
9
20
9.51
a
1.82
2.62
18.7
26.8
2.36
Infant formula powder soy-based
9
20
2.10
0.150 0.501
6.94
23.2
2.30
Infant formula powder milk-based
9
18
0.667
0.026 0.172
3.92
25.9
2.15
Infant formula RTF milk-based
8
18
0.348
0.030 0.091
8.36
25.2
1.91
Infant formula powder partial hydrolyzed milk-based 9
20
0.214
0.010 0.058
4.72
26.4
1.86
Infant formula powder partial hydrolyzed soy-based 9
20
1.64
0.094 0.358
5.53
21.1
2.02
Child formula powder
9
20
0.328
0.023 0.088
6.89
25.8
1.94
Infant elemental powder
9
20
0
0
0
0
0
0
Infant formula RTF milk-based, unfortified
8
20
0.305
0.024 0.085
7.71
26.9
2.00
a
Data reported as mg/kg powder.
Table 9. Collaborative study results for free plus phosphatidylinositol bound myo-inositol with all data included
Sample type
Total No.
labs
Total No.
replicates
Mean,
mg/100 g
RTF
SD
r
SD
R
RSD
r
, % RSD
R
, % HorRat
Infant formula (NIST SRM 1849a)
9
20
422
a
11.9
11.9
2.83
2.83
0.44
Infant formula powder soy-based
9
20
6.27
0.147
0.446
2.32
7.05
0.82
Infant formula powder milk-based
9
18
4.92
0.184
0.314
3.74
6.38
0.72
Infant formula RTF milk-based
8
18
7.50
0.106
0.218
1.41
2.90
0.35
Infant formula powder partial hydrolyzed milk-based 9
20
3.84
0.035
0.426
0.91
11.2
1.21
Infant formula powder partial hydrolyzed soy-based 9
20
4.71
0.152
0.357
3.22
7.55
0.84
Child formula powder
9
20
5.42
0.203
0.307
3.73
5.63
0.64
Infant elemental powder
9
20
5.08
0.237
0.324
4.67
6.40
0.72
Infant formula RTF milk-based, unfortified
8
18
3.46
0.066
0.128
1.90
3.70
0.39
a
Data reported as mg/kg powder.
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