Table 3: Method detection limits (concentrations in mg kg−1) determined for laboratory blank solutions.

Elementm/z Equation#Procedure
ABC

Be90.0100.0100.009
B110.760.850.69
Al272.94.72.0
Ti472.51.43.5
V51(1)0.120.690.44
V510.12N.R.0.91
Cr520.0551.90.047
Mn550.0330.110.039
Fe5610.29.88.6
Co590.0120.0130.024
Ni600.150.380.12
Cu630.330.710.44
Cu650.500.270.17
Zn661.40.610.36
As750.020N.R.0.20
As75(2)0.270.860.20
Se82(3)0.871.40.89
Se820.880.890.97
Sr880.0450.0140.028
Mo950.261.130.32
Ag1070.0810.0130.009
Cd111(4)0.0830.0550.081
Sb1230.0050.0040.007
Cs1330.0140.0280.023
Ba1370.0590.0630.20
Tl2050.0030.0060.006
Pb208(5)0.0240.0170.090
Th2320.0050.0030.007
U2380.002N.Q.0.003

Procedures: A (HNO3) and B (HNO3 + HCl) use dilution factors of 0.6 g L−1, while 0.5 g L−1 is applied for procedure C (HNO3 + H2O2). In the three cases, 0.5 g of dry sample was digested. For the variations of method A with different amount of sample,  (g), the corresponding MDLs have to be corrected by a factor of .
#Correction equations from Table 2.
N.R.: not recommended; N.Q.: not quantified.