等离子体发射光谱法测定重油及润滑油中八种金属元素含量

DETERMINATION OF EIGHT kIND OF ELEMENTS IN HEAVY OIL AND LUBRICATION BY INDUCTIVELY COUPLED PLASM EMISSION SPECTROSCOPY

用ICP2070时序等离子体光谱仪,测定重油及润滑油中铁、镍、铜、钒、钠、钙、钡、锌八种金属元素,并用优选法对仪器的最佳操作条件进行了选择,讨论了无机酸及共存元素的干扰问题。本法测定上述八种元系,均可获得较好的精密度和回收率。

Determination of Fe、Ni、Cu、V、Na、Ca、Ba and Zn in heavy oil and lubrication oil by ICP2070. Interferences of matix and inorganic acid were discussed. The samples were treated with dry ashing and were decomposed with HCl and HNO_3. The precision and accuracy were satisfactory.