Table 1.

Instrumental setting for ICP-MS

Instrument	Agilent 7500c
Mass monitored	Cu: 63
	Zn: 66
	As: 75
	Se: 78
	Cd: 111
	Sn: 118
	Sb: 121
	Pb: 208
	Bi: 209
Internal standards	Ge: 72
	Y: 89
	Rh: 103
	In: 115
	Tl: 205
Reaction gas	He, H2
RF power	1.5–1.6 kW