结合海洋地质专业84届毕业生的论文工作,曾对黄河口沉积物及少数滦河口沉积物样品共40个(见图1),进行了以背景作为内标的微量元素发射光谱分析。在正式分析前作了摄谱条件试验和用标准样作了所分析微量元素的重复性试验(包括黑度的重复性和浓度的重复性),结果表明在所选择的摄谱条件和所选用的分析线情况下Cu、Ni、Mo的黑度相对标准偏差<6％,Mn、Pb的黑度相对标准偏差为 Combined with the papers of 84 graduates in marine geology, 40 sediment samples from the Yellow River Estuary and a few Luanhe Estuary sediments (see Figure 1) were used to conduct trace element emission spectroscopic analysis with background as the internal standard. Spectral conditioning tests were performed prior to formal analysis and trace elements analyzed for repeatability (including repeatability of blackness and repeatability of concentrations) were analyzed using standard samples. The results show that under the selected spectral conditions and selected The relative standard deviation of the blackness of Cu, Ni and Mo is less than 6% when analyzing the line, the relative standard deviation of the blackness of Mn and Pb is