0.500 0 g柴油抗磨剂样品用10 mL甲苯溶解，然后用甲苯定量至30 g，采用电感耦合等离子体原子发射光谱法测定样品溶液中钠、钾、钙、镁、铁、钼、锌、磷、硼、硅、锡等11种微量元素。氧气流量为30 mL·min^-1，钠、钾、钙、镁、铁、钼、锌、磷、硼、硅、锡的分析谱线依次为588.957 0，766.444 0，393.386 0，279.512 1，259.913 0，202.016 7，213.815 8，214.915 7，249.713 5，251.613 4，189.917 7 nm。在等离子体气体中加入氧气有效消除了积碳现象，以钇为内标元素。11种元素的线性范围均为0.05~10.0 mg·L^-1，检出限（3s）为0.001 2~0.086 1 mg·kg^-1。在1.000 mg·kg^-1浓度水平进行加标回收试验，回收率为95.7%~107%，测定值的相对标准偏差（n=6）为1.3%~4.7%。

The sample of diesel antiwear agent (0.500 0 g) was dissolved with 10 mL of toluene, and then diluted to 30 g with toluene. ICP-AES was applied to the determination of trace amounts of 11 elements, i.e. Na、K、Ca、Mg、Fe、Mo、Zn、P、B、Si and Sn in the sample solution. Oxygen flow was 30 mL·min^-1. Analytical spectral lines of 588.957 0, 766.444 0, 393.386 0, 279.512 1, 259.913 0, 202.016 7, 213.815 8, 214.915 7, 249.713 5, 251.613 4, 189.917 7 nm were chosen for the determination of Na、K、Ca、Mg、Fe、Mo、Zn、P、B、Si and Sn respectively. The deposition of carbon could be avoided effectively by introducing oxygen to plasma. Y was used as internal standard. Linearity ranges of the 11 elements were found in the same range of 0.05-10.0mg·L^-1 with detection limits (3s) in the range of 0.001 2-0.086 1 mg·kg^-1. Tests for recovery were made by standard addition method at the concentration level of 1.000 mg·kg^-1, giving values of recovery and RSD's (n=6) in the ranges of 95.7%-107% and 1.3%-4.7% respectively.