Chromium (Cr), 1µg/ml in 2%-HNO3 / Water, 100ml

Na, 1000 µg/mL in 5% HNO3, 100ml

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

Te, 1000 µg/mL in 5% HNO3, 100ml