中文摘要：

以船用内燃机油为研究对象，利用原子发射光谱对润滑油中的添加剂成分进行量化确定。根据MOA原子发射光谱仪的工作原理，选择校正曲线法定量，提出对不在测量精度范围内的添加剂元素含量用0μg·g^-1的空白标油进行稀释测量的方法，并进行误差计算。试验结果表明，添加剂各元素钙、磷和锌的测量相对标准偏差分别为1．6％，4．8％和4．6％，样品稀释前后的测量误差结果分别为4．21％，6．99％和5．09％。

英文摘要：

The determination of the additive contents of marine lubrication oil by using atomic emission spectrometry is described. A new measuring method is suggested in accordance with the working principle of MOA atomic emission spectral instrument. The additive element contents, if not within the precision limits of MOA atomic emission spectra, are to be measured by being diluted with a standard oil. Error analysis is conducted and the calibration curve method is used. The testing result indicates that the RSD of Ca, P and Zn is 1.6%, 4.8% and 4. 6% respectively, and the error result of oil sample before and after diluting is 4. 21%, 6.99% and 5. 09% respectively.