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Table 5. Calibration standards and PLOQ for MTE-02
Na
Mg
P
K
Ca
Mn
Fe
Cu
Zn
Cr
Mo
Se
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
µg/L
µg/L
µg/L
Cal Blank
0
0
0
0
0
0
0
0
0
0
0
0
Cal Std 1
0.50
0.20
0.50
1.0
1.0
0.0050 0.050 0.0050
0.02
0.80
0.80
0.40
Cal Std 2
2.5
1.0
2.5
5.0
5.0
0.025
0.25
0.025
0.10
4.0
4.0
2.0
Cal Std 3
10
4.0
10
20
20
0.1
1.0
0.10
0.40
16
16
8.0
Cal Std 4
20
8.0
20
40
40
0.2
2.0
0.20
0.80
32
32
16
PLOQ
0.25
0.10
0.25
0.50
0.50
0.0025 0.025 0.0025 0.010
0.40
0.40
0.20
50x DF
12.5
5.0
12.5
25
25
0.125
1.25
0.125
0.50 mg/kg RTF
20
20
10 ng/g RTF
The LOQ for this method is the practical LOQ determined from the linearity expt (Table 5a). The PLOQ is half the concentration of the lowest calibration std.
If this PLOQ is multiplied by the typical ICP-MS dilution factor of 50, the results are expressed in terms of mg/kg of an RTF sample.
MTE-02 MEF Form
FOR ERP USE ONLY
DO NOT DISTRIBUTE