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石墨炉原子吸收光谱法已广泛地应用于环境样品、生物样品和各种材料中多元素的测定,应用石墨炉法测定铜的文献较多,但直接测定基体复杂,尤其是含大量氯化钠样品中的微量铜,通常则需用萃取分离等手段,以分离基体避免干扰,本实验采用石墨炉原子吸收光谱法,以硝酸铵作基体改进剂,可以有效地消除基体干扰,直接测定了铅阴极电解液中的微量铜,方法简便。
Graphite furnace atomic absorption spectrometry has been widely used in environmental samples, biological samples and various materials in the determination of multi-element, graphite furnace furnace method for the determination of copper literature more, but the direct determination of complex matrix, especially with a large amount of sodium chloride The trace copper in the sample usually needs to be separated by means of extraction and separation to separate the matrix from interference. In this experiment, graphite furnace atomic absorption spectrometry and ammonium nitrate as matrix modifier can effectively eliminate matrix interference and directly measure lead Cathode electrolyte trace of copper, the method is simple.