ochre

Established a method determining the content of trace elements copper, zinc, manganese, lead, chromium, calcium, nickel of haematitum and red ore by FAAS.

建立火焰原子吸收光谱法用于测定矿物药赭石和红矿中微量元素钙、铜、锌、锰、镍、铬、铅的含量的方法。

Chinese codex(2000 edition)said that processing of ruddle is to calcine it thoroghly and quench with vinegar and grind it into meal.

《中国药典》2000年版规定,对代赭石的炮制要用“煅至红透,醋淬,碾成粗粉的方法”。