The copper ion content is determined with direct spectrophotometry after the engine oil was incinerated,dissolved with acid and developed with Neocuproin-Hydroch lorid Monohydrat.

 
  • 将机油灰化、酸溶解后,新亚铜灵显色、直接光度法测定铜离子含量,样品回收率在92。
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