Sn @ 10000 µg/mL in 5% HNO3, tr. HF, 100ml

6,6'-Dihydroxy-5,5'-dimethoxybiphenyl-3,3'-dicarbo

Cr @ 1000 µg/mL in 5% HCl, 100ml

Antimony, 1000ug/ml, 100ml