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在地球化学中,镉是重要的指示元素之一,要求可靠地报出0.0x ppm含量。虽然用石墨炉原子吸收可测定痕量镉,但由于管壁原子化时间和空间的非等温特性致使基体影响非常严重,背景值很大而难于用氘灯准确地加以校正。 为解决管壁原子化时间及空间的非等温特性问题,L’vov提出了石墨炉平台原子化技术。Slavin等在此基础上又提出了
In geochemistry, cadmium is one of the most important indicator elements and requires a reliable reporting of 0.0x ppm. Although trace amounts of cadmium can be determined by graphite furnace atomic absorption spectroscopy, the influence of the matrix on the non-isothermal characteristics of the time and space of the wall atomization is very serious, and the background value is very large and it is difficult to accurately correct it with a deuterium lamp. In order to solve the problem of non-isothermal characteristics of the time and space of tube wall atomization, L’vov proposed graphite furnace platform atomization technology. Slavin and so on this basis again