Trivalent chromium and hexavalent chromium are two main states of the chromium in foods.
2
铬是动物体必需的微量元素。
Chromium is one of the necessary microelements to animals.
3
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。
Established a method determining the content of trace elements copper, zinc, manganese, lead, chromium, calcium, nickel of haematitum and red ore by FAAS.
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