Cr @ 1000 µg/mL in 5% HCl, 100ml

Method 200.8/1638/1640 Internal Standard, 10µg/ml in 2%-HNO3, 4x25ml

ICH Q3D & USP 232 Orals Kit_v2

Cu @ 1000 µg/mL in 5% HNO3, 100ml