试样以王水分解、泡塑富集分离金，硫脲解脱，以硝酸-硫酸破坏硫脲，用氟化氢胺- EDTA掩蔽铁、铜、铅等干扰元素，加碘化钾使之析出碘，以淀粉为指示剂，用硫代硫酸钠进行滴定。
Conceal disturbing elements like iron, copper, lead with hydrogen fluoride amine-EDTA, add the potassium iodide to separate iodine, and take starch as indicator, titrate with sodium hyposulfite.
试样经高温焙烧后，用硫酸分解，使金与可溶性铜、铁等大量基体分离，残留物中金经王水溶解，用原子吸收光谱法或ICP - AES测定。
The sample was dissolved by sulfuric acid to separate Au from soluble Cu, Fe and any other soluble element. Then gold was determined in remains by using AAS or ICPAES.
在一分解机18中机械地处理该混合物，使之均匀，并且精细地将该混合物分离。
The mixture is mechanically treated in a disintegrator 18 to homogenise and finely divide the mixture.
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