16 components: Ca 10mg/l Cr 10mg/l Co 10mg/l Cu 10mg/l Ge 10mg/l Hf 10mg/l Fe 10mg/l Li 10mg/l Mg 10mg/l Mn 10mg/l Ni 10mg/l K 10mg/l Na 10mg/l V 10mg/l Zn 10mg/l Al 100mg/l in HNO3 5% HF 0.01% 1 * 100 mL