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

(+)-Pinoresinol (>80% ee), 100mg

Nitrate Standard: NO3-, 1000µg/ml in Water, 100ml

Sulfur, 1500µg/g (0.150 wt%) in 75 cSt Mineral Oil, 100ml