ICP-MS parameters 7700x (Agilent) XSeries 2 (Thermo) iCAPQ (Thermo) ELEMENT 2 (Thermo)
Nebuliser Concentric type 400 μL min-1 Concentric type 900 μL min-1 Concentric type <200 μL min-1 Concentric type <200 μL min-1
Spray chamber Scott-type double-pass water cooled Cyclonic in PTFE (Kit-HF) Peltier-cooled cyclonic Peltier-cooled cyclonic
Sampling / skimmer cones Nickel Nickel Nickel Nickel
Power 1400 W 1400 W 1550 W 1300 W
Plasma argon flow rate 15 L min-1 13 L min-1 14 L min-1 16 L min-1
Nebuliser argon flow rate 0.9 – 1 mL min-1 0.95 – 1.1 mL/min 1 mL min-1 1.3 mL min-1
Auxiliary argon flow rate 0.99 L min-1 0.80 - 0.90 L min-1 0.79 L min-1 0.88 L min-1
He gas flow (collision cell) 4.3mL min-1 - 4.2 mLmin-1 -
Replicates 3 3 3 3
Table 4: Operating conditions of the four ICP-MS devices.