海洋沉积物中某些微量元素的光谱定量分析方法研究

研究海洋沉积物中化学元素的含量、分布、组合和迁移以及分散和富集的规律，是海洋地球化学研究的重要内容。它为沉积作用、沉积环境、成矿作用以及污染本底的调查提供科学依据。因此，它具有非常重要的意义。近二十年来，在国外这种研究工作很受重视。 在化学元素测定的许多方法中，光谱法具有快速、经济和准确度高等优越性。为此，我们采用这种方法，对海洋沉积物中的镓、钛、钡、钒、镍、铜、锰和铬等进行了测定。并对这种光谱定量分析方法进行了研究，使其更加简便，结果令人满意。

A STUDY ON THE METHOD OF QUANTITATIVE SPECTROMETRIC DETERMINATION OF SOME MINOR ELEMENTS IN MARINE SEDIMENTS

The small hole electrodes, silicon controlled D.C. light source and pure graphite powder two times the amount of the sample are used in the determination. Such amount of graphite may act broth as a buffer and a carrier, diminishing the influence of increased intensity caused by the impurities of the additional buffer and carrier, increasing the intensity of spectral line of V and Ni and decreasing the differences in the fundamental elements between the base and the sample at the same time. The error of average square-root for Ga, Ti, Ba, V, Ni, Cu, Mn and Cr are ±5 .4, ±5 .4, ±5.0, ±10.4, ±7.8, ±9.0. ±10 and ±8.1% respectively.