Table 2 ICP-MS operation conditions.

RF power

1550 W

Auxiliary gas (Ar) flow rate

1.00 L min⁻¹

Plasma gas (Ar) flow rate

15 L min⁻¹

Sampling depth

7.5 mm

Measurement mode

STD

Survey runs

jump

Measured isotopes and dwell

time per isotope

20 ms (¹⁹⁵Pt, ¹⁰⁵Pd)

10 ms (¹⁰⁹Ag)

No. of sweeps

1

Detector mode

Dual