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

Nickel, 1000ug/ml, 100ml

Nitrite Standard: NO2-, 1000µg/mL iin Water, 100ml

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