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铝合金中镁、铜、锰的原子吸收法测定已有资料报道。一般皆提到用锶、镧以及8-羟基喹啉作为抑制剂来消除铝、硅对镁、锰的干扰。有的资料还报道用钙作为释放剂消除铝对镁的干扰。本文以铝硅合金为试料,研究了基体铝及硅对镁、铜、锰的干扰,并对抑制剂的选择进行了一系列实验。发现单用锶、镧或8-羟基喹啉作铝抑制剂时,干扰不能完全消除。
Determination of Magnesium, Copper and Manganese in Aluminum Alloy by Atomic Absorption Spectrometry. Generally mentioned the use of strontium, lanthanum and 8-hydroxyquinoline as inhibitors to eliminate aluminum and silicon on magnesium and manganese interference. Some data also reported that calcium as a release agent to eliminate the interference of aluminum on magnesium. In this paper, aluminum-silicon alloy as a sample to study the matrix of aluminum and silicon on magnesium, copper and manganese interference, and the choice of inhibitors conducted a series of experiments. Found that strontium alone, lanthanum or 8-hydroxyquinoline as aluminum inhibitor, the interference can not be completely eliminated.