Instrument parameter | ICP OES | ICP-MS |
---|---|---|
RF applied power / kW | 1.15 | 1.55 |
Plasma gas flow rate / (L min-1) | 12 | 15 |
Auxiliary gas flow rate / (L min-1) | 0.50 | 1.00 |
Sampling depth / mm | NA | 8.0 |
He flow rate in collision cell / (mL min-1) |
NA | 4.5 |
Integration time / s | 15 | 3.0 |
Nebulizer | concentric | Mira-Mist |
Spray chamber | cyclonic | Scott type-double pass |
Number of replicate | 3 | 3 |
Analyte | Emission line / nm | Isotope (m/z) |
Al | 167.079 | NA |
As | 189.042 | 75 |
Cd | 228.802 | 114 |
Co | NA | 59 |
Cr | 267.716 | NA |
Cu | 327.396 | 65 |
Hg | NA | 202 |
Mo | NA | 98 |
Mn | 259.373 | 55 |
Ni | NA | 58 |
Pb | 216.999 | 208 |
Sb | NA | 121 |
Se | NA | 78 |
V | NA | 51 |
Zn | 213.856 | NA |
Material | ICP OES | ICP-MS |
---|---|---|
ERM-EC680K (polyethylene, low level) | NA | As, Cd, Hg, Pb, Sb |
ERM-EC681K (polyethylene, high level) | As, Cd, Hg, Pb | NA |
NIST 1570a (spinach leaves) | Al, Mn, Zn | As, Cd, Co, Cu, Ni, Se, V |
RM-Agro E3001a (bovine liver) | NA | Cd, Co, Mn, Mo, Se |
RM-Agro E2002a (soil) | As, Cd, Cr, Cu, Pb | NA |
Analyte | ICP OES | ICP-MS | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
EC | MFC | Acquisition mode |
EC | MFC | ||||||||
LOQ / (mg kg-1) |
R2 | LOQ / (mg kg-1) |
R2 range | LOQ / (mg kg-1) |
R2 | LOQ / (mg kg-1) |
R2 range | |||||
Al | 0.4 | 0.9989 | 2 | 0.9968-0.9998 | NA | NA | NA | NA | NA | |||
Cd | 0.08 | 0.9999 | 0.1 | 0.9936-0.9998 | no gas | 0.02 | 0.9995 | 0.01 | 0.9814-0.9999 | |||
Co | NA | NA | NA | NA | no gas | 0.01 | 0.9994 | 0.005 | 0.9909-0.9998 | |||
Cr | 0.2 | 0.9999 | 0.4 | 0.9996-0.9998 | NA | NA | NA | NA | NA | |||
Cu | 0.04 | 0.9999 | 2 | 0.9998 | no gas | 0.1 | 0.9996 | 0.08 | 0.9920-0.9998 | |||
Hg | NA | NA | NA | NA | no gas | 1.5 | 0.9996 | 0.3 | 0.9953-0.9989 | |||
Mo | NA | NA | NA | NA | no gas | 0.09 | 0.9995 | 0.04 | 0.9984-0.9999 | |||
Mn | 0.02 | 0.9999 | 0.2 | 0.9968-0.9970 | no gas | 0.04 | 0.9994 | 0.04 | 0.9989-0.9995 | |||
Ni | NA | NA | NA | NA | He | 0.09 | 0.9998 | 0.05 | 0.9964-0.9991 | |||
Pb | 2.0 | 0.9999 | 5 | 0.9778-0.9815 | no gas | 0.2 | 0.9994 | 0.09 | 0.9955-0.9995 | |||
Sb | NA | NA | NA | NA | no gas | 0.03 | 0.9997 | 0.04 | 0.9979-0.9990 | |||
V | NA | NA | NA | NA | no gas | 0.02 | 0.9995 | 0.01 | 0.9968-0.9992 | |||
Zn | 0.06 | 0.9999 | 0.3 | 0.9957-9968 | NA | NA | NA | NA | NA | |||
Asa a Analytes where He and He/HMI were used. ICP OES: inductively coupled plasma optical emission spectrometry; ICP-MS: inductively coupled plasma mass spectrometry; EC: external standard calibration; MFC: multi-flow calibration; LOQ: limit of quantification; R2: determination coefficient; HMI: high matrix introduction; NA: not applicable once the element was not determined by this technique as shown in Table 2. | 4 | 0.9999 | 3 | 0.9911-0.9985 | He | 0.07 | 0.9996 | 0.3 | 0.9809-0.9978 | |||
He/HMI | 0.005 | 0.9990 | 0.009 | 0.9889-0.9988 | ||||||||
Sea a Analytes where He and He/HMI were used. ICP OES: inductively coupled plasma optical emission spectrometry; ICP-MS: inductively coupled plasma mass spectrometry; EC: external standard calibration; MFC: multi-flow calibration; LOQ: limit of quantification; R2: determination coefficient; HMI: high matrix introduction; NA: not applicable once the element was not determined by this technique as shown in Table 2. | NA | NA | NA | NA | no gas | 0.3 | 0.9991 | 0.2 | 0.9883-0.9960 | |||
no gas/HMI | 0.06 | 0.9990 | 0.05 | 0.9881-0.9981 |
Analyte | Determined value (recovery / %) / (mg kg-1) | ||||
---|---|---|---|---|---|
Certified value | EC | MFC 0.5 | MFC 1.0 | MFC 2.0 | |
Spinach leaves (NIST 1570a) | |||||
Al | 310 ± 11 | 222 ± 1 (72) | 241 ± 8 (78) | 245 ± 8 (79) | 254 ± 4 (82) |
Mn | 76 ± 2 | 62.1 ± 0.9 (82) | 66.2 ± 0.6 (87) | 69.4 ± 0.6 (91) | 65.3 ± 0.9 (86) |
Zn | 82 ± 3 | 65.9 ± 0.5 (80) | 74.2 ± 0.3 (90) | 77.8 ± 0.4 (95) | 74.6 ± 0.1 (91) |
Soil (RM-Agro E2002a) | |||||
As | 59 ± 7 | 47 ± 23 (79) | 64 ± 6 (109) | 56 ± 5 (96) | 58 ± 6 (98) |
Cd | 94 ± 11 | 65 ± 6 (70) | 75 ± 7 (80) | 73 ± 7 (78) | 75± 7 (80) |
Cr | 120 ± 30 | 104 ± 8 (86) | 109 ± 8 (91) | 106 ± 8 (88) | 107 ± 8 (89) |
Cu | 9 ± 4 | 5 ± 1 (54) | 7 ± 1 (84) | 7 ± 1 (81) | 7 ± 1 (84) |
Pb | 174 ± 19 | 166 ± 15 (96) | 178 ± 16 (102) | 169 ± 15 (97) | 173 ± 16 (100) |
Polymer (ERM-EC681K) | |||||
As | 29 ± 2 | 23.9 ± 0.5 (82) | 30 ± 1 (104) | 24.4 ± 0.9 (84) | 32 ± 1 (110) |
Cd | 137 ± 4 | 127.3 ± 0.01 (93) | 134.5 ± 0.2 (98) | 131.4 ± 0.3 (96) | 138.5 ± 0.3 (101) |
Pb | 98 ± 6 | 90.4 ± 0.1 (92) | 94 ± 4 (96) | 91 ± 3 (93) | 101 ± 4 (103) |
Isotope | Determined value (recovery / %) / (mg kg-1) | ||||
---|---|---|---|---|---|
Certified value | EC | MFC 0.5 | MFC 1.0 | MFC 2.0 | |
Spinach leaves (NIST 1570a) | |||||
51V | 0.57 ± 0.03 | 0.50 ± 0.02 (87) | 0.57 ± 0.02 (101) | 0.61 ± 0.02 (107) | 0.62 ± 0.02 (110) |
58Ni | 2.4 ± 0.1 | 2.5 ± 0.1 (116) | 2.50 ± 0.05 (91) | 3.10 ± 0.06 (108) | 3.49 ± 0.07 (118) |
59Co | 0.39 ± 0.05 | 0.22 ± 0.02 (55) | 0.37 ± 0.01 (95) | 0.40 ± 0.01 (102) | 0.40 ± 0.01 (103) |
65Cu | 12.2 ± 0.6 | 10.3 ± 0.4 (85) | 11.3 ± 0.2 (92) | 11.7 ± 0.3 (96) | 12.1 ± 0.3 (99) |
75As | 0.07 ± 0.01 | 0.09 ± 0.03 (127) | < LOQ | < LOQ | < LOQ |
78Se | 0.117 ± 0.009 | < LOQ | < LOQ | < LOQ | < LOQ |
114Cd | 2.89 ± 0.07 | 2.32 ± 0.08 (81) | 2.62 ± 0.05 (91) | 2.71 ± 0.05 (94) | 2.78 ± 0.05 (97) |
Bovine liver (RM-Agro E3001a) | |||||
55Mn | 8 ± 1 | 6.9 ± 0.06 (92) | 7.75 ± 0.09 (102) | 7.93 ± 0.09 (104) | 8.04 ± 0.09 (105) |
59Co | 0.32 ± 0.05 | 0.26 ± 0.01 (81) | 0.340 ± 0.006 (87) | 0.352 ± 0.006 (98) | 0.340 ± 0.006 (91) |
78Se | 0.7 ± 0.1 | 0.5 ± 0.2 (75) | 0.64 ± 0.04 (95) | 0.75 ± 0.06 (112) | 0.76 ± 0.06 (113) |
98Mo | 4.1 ± 0.1 | 3.13 ± 0.09 (77) | 3.32 ± 0.08 (81) | 3.6 ± 0.09 (88) | 3.49 ± 0.09 (90) |
114Cd | 0.104 ± 0.02 | 0.059 ± 0.003 (57) | 0.092 ± 0.005 (106) | 0.103 ± 0.006 (110) | 0.096 ± 0.005 (106) |
Polymer (ERM-EC680K) | |||||
75As | 4.1 ± 0.5 | 3.6 ± 0.6 (89) | 3.1 ± 0.2 (76) | 3.3 ± 0.23 (82) | 3.3 ± 0.3 (81) |
114Cd | 20 ± 1 | 24.2 ± 0.1 (121) | 20.8 ± 0.6 (104) | 21 ± 1 (105) | 20.8 ± 0.8 (104) |
123Sb | 10 ± 2 | 15 ± 3 (149) | 9.9 ± 0.5 (99) | 11.2 ± 0.7 (111) | 10.6 ± 0.6 (105) |
202Hg | 4.6 ± 0.2 | 4 ± 3 (99) | 4.4 ± 0.08 (96) | 5.1 ± 0.2 (110) | 5.4 ± 0.4 (117) |
208Pb | 13.6 ± 0.5 | 13 ± 9 (99) | 10.2 ± 0.6 (75) | 12.9 ± 0.5 (95) | 12.9 ± 0.6 (95) |