5 element Contract Required Detection Limit Standard Sb: 120, As: 20, Be: 10, Cd: 10, Cr: 20, Co: 100, Cu: 50, Pb: 6, Mn: 30, Ni: 80, Se: 10, Ag: 20, Tl: 20, V: 100, Zn: 40, 2% HNO3+ Tr HF, 100mL (Perkin Elmer equivalent N930025)