Research Article

Multielement Principal Component Analysis and Origin Traceability of Rice Based on ICP-MS/MS

Table 3

Linear range and detection limit of isotopes.

Calibration (μg/L)R2Internal standardLOD (mg/kg)LOQ (mg/kg)

7Li0∼1000.9998Sc0.0006590.0220
23Na0∼10000.9999Sc0.1440.479
24Mg0∼10000.9999Sc0.003720.0124
27Al0∼1000.9987Sc0.09070.302
11B0∼1000.9995Sc0.03750.125
31P0∼10000.9994Sc0.02040.0679
32S0∼10000.9997ScO0.06140.205
39K0∼10001.0000Sc0.02910.0970
44Ca0∼10001.0000Sc0.1050.351
47Ti0∼1000.9999ScO0.002190.00731
51V0∼1000.9999ScO0.0009460.00315
52Cr0∼1000.9997ScO0.005210.0174
55Mn0∼10001.0000Sc0.001480.00495
56Fe0∼10001.0000Sc(NH3)20.01700.0567
59Co0∼1001.0000Sc(NH3)20.0005100.00170
60Ni0∼1001.0000Sc(NH3)20.001330.00444
63Cu0∼10001.0000Sc0.004740.0158
66Zn0∼10001.0000Sc0.01150.0383
72Ge0∼1001.0000Y0.0002060.000686
75As0∼1001.0000YO0.002500.00832
78Se0∼1001.0000Y0.001520.00507
88Sr0∼1001.0000Y0.0009290.00310
95Mo0∼1000.9999YNH30.0006050.00202
111Cd0∼1001.0000Rh0.00006620.000221
115In0∼1000.9998Rh0.001230.00410
118Sn0∼1001.0000Rh0.001760.000588
121Sb0∼1001.0000Rh0.0001960.000653
133Cs0∼1001.0000Rh0.0002270.000756
137Ba0∼1001.0000Rh0.001580.00525
208Pb0∼1001.0000Bi0.0009490.00317