Cadmium, chromium and lead in the root, branch, leaf, peel and fruit of navel orange from South Jiangxi Province were determined by ICP-AES, after the microwave digestion of the samples.

应用电感耦合等离子体质谱法测定了江西赣南地区脐橙的根、枝、叶、皮及果实中镉、铬、铅等元素，采用微波消解，直接测定。

youdao

That is where the team was shocked to find a compound called cadmium oxalate as the cause of the grey-orange pallor.

BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays