1514
P
OITEVINETAL.
: J
OURNALOF
AOACI
NTERNATIONAL
V
OL
. 92,N
O
. 5, 2009
Table 29. Estimatedperformancecharacteristicsof the ICP-AESmethod for determinationof nineelements (Ca, Cu, Fe, K,Mg,Mn, Na, P, andZn)
Sampledescription
Reference
value,mg/kg
a
Median,mg/kg
n
b
SD
r
,mg/kg
c
SD
R
,mg/kg
d
RSD
r
,% RSD
R
,% r,mg/kg
e
R,mg/kg
f
HorRat
g
z
-score
Calcium
Peanut butter
411±18
416
9
14
21
3.3
5.0
39
57
0.8
0.2
Chocolatemilkpowder
9870±248
9712
9
162
280
1.7
2.9
448
775
0.7
–0.6
Infant cereals
6000±88
5972
9
234
290
3.9
4.9
649
803
1.1
–0.1
Dieteticmilkpowder 2
5780±56
5696
9
61
218
1.1
3.8
170
606
0.9
–0.4
Wheat gluten
369±35
365
9
5
15
1.4
4.0
15
41
0.6
–0.3
Copper
Peanut butter
4.93±0.15
4.94
9
0.20
0.31
4.1
6.2
0.56
0.85
0.5
0.03
Chocolatemilkpowder
NA
h
5.92
9
0.11
0.41
1.9
6.9
0.31
1.13
0.6
Infant cereals
NA
1.94
9
0.10
0.23
5.0
12
0.27
0.65
0.8
Dieteticmilkpowder 2
6.10±0.20
6.09
9
0.12
0.40
2.0
6.5
0.33
1.10
0.5
–0.02
Wheat gluten
5.94±0.72
5.77
9
0.10
0.26
1.8
4.4
0.29
0.71
0.4
–0.7
Iron
Peanut butter
16.4±0.8
15.9
9
0.8
2.4
5.0
14.9
2.2
6.5
1.4
–0.2
Chocolatemilkpowder
169.9±4.8
166.2
9
3.8
7.4
2.3
4.4
10.5
20.4
0.6
–0.5
Infant cereals
80.4±1.2
74.8
9
1.2
3.9
1.5
5.2
3.2
10.8
0.6
–1.4
Dieteticmilkpowder 2
81.1±1.0
81.9
9
2.2
3.6
2.7
4.3
6.0
9.9
0.5
0.2
Wheat gluten
54.3±6.8
49.8
9
1.2
2.1
2.4
4.1
3.4
5.7
0.5
–2.2
Potassium
Peanut butter
6070±200
6157
9
101
118
1.6
1.9
279
326
0.4
0.7
Chocolatemilkpowder
9090±266
9006
9
100
166
1.1
1.8
277
460
0.4
–0.5
Infant cereals
6500±100
6466
9
100
124
1.5
1.9
277
343
0.4
–0.3
Dieteticmilkpowder 2
6420±52
6431
9
61
76
0.9
1.2
169
212
0.3
0.1
Wheat gluten
472±61
413
9
6
32
1.5
7.8
17.1
89.3
1.2
–1.8
Magnesium
Peanut butter
1680±70
1753
9
42
116
2.4
6.6
117
321
1.3
0.6
Chocolatemilkpowder
1779±46
1751
9
33
54
1.9
3.1
91.7
151
0.6
–0.5
Infant cereals
881±16
860
9
29
47
3.4
5.4
81
129
0.9
–0.5
Dieteticmilkpowder 2
444±5
441
9
5.4
12.7
1.2
2.9
15.0
35.3
0.5
–0.2
Wheat gluten
510±47
483
9
10
15
2.0
3.1
26
41
0.5
–1.8
MTE-01
FORWORKINGGROUP/ERPUSEONLY
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