Mo, 1000 µg/mL in 5% HNO3, tr. HF, 100ml

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

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

Phenyl mercuric chloride(Technical), 250mg