GF AAS Multi element standard XVIII – 16 components: Ag 10mg/l ; Al 100mg/l ; As 100mg/l ; Ba 50mg/l ; Be 5mg/l ; Cd 5mg/l ; Co 50mg/l ; Cr 20mg/l ; Cu 50mg/l ; Fe 20mg/l ; Mn 20mg/l ; Ni 50mg/l ; Pb 100mg/l ; Sb 100mg/l ; Se 100mg/l ; Tl 100mg/l in 5% HNO3, 100mL