Table 2. HG-MC-ICPMS Operating Parameters.

MC-ICPMS parameters
RF power	1300 W
coolant flow (Ar)	13 L/min
auxiliary flow (Ar)	1.15 L/min
nebulizer gas flow (Ar)	0.69 L/min
interface cones	nickel
measurement parameters
resolution mode	∼300
cup configuration	H4: 74Ge; H2: 73Ge; Ax: 72Ge; L4: 70Ge
integration time	2.5 s
measurement mode	time-resolved analysis
replicates	≥50
hydride generation
“acid” reagent	0.1 M sodium acetate buffer
reducing agent	NaBH4 (1%) mixed with NaOH (0.01 M)
reagents and sample flow rate	0.83 mL/min
sample gas rotameter position	10 mm
additional gas flow rate	0.7 L/min