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应用原子吸收分光光度法分析铝合金,己有不少文献作了报导。一般铝合金中的元素对铜、锌、锰、镍,镉、铁、银的测定没有影响。唯有硅、钛、锆、磷和合金基体对镁的测定有影响,而铜、铁、镍、镁、钛、锰等元素对铬的测定有干扰。为了消除干扰,通常以8-羟基喹啉、5-磺基水扬酸、氯化锶作为镁的干扰消除剂。以铝和氟化铵,氟化氢铵和硫酸锶以及8-羟基喹啉作为铬的干扰消除剂。
The use of atomic absorption spectrophotometric analysis of aluminum alloy, have been reported in many literature. General aluminum alloy elements of copper, zinc, manganese, nickel, cadmium, iron, silver determination has no effect. Only silicon, titanium, zirconium, phosphorus and alloy matrix affect the determination of magnesium, and copper, iron, nickel, magnesium, titanium, manganese and other elements interfere with the determination of chromium. In order to eliminate interference, 8-hydroxyquinoline, 5-sulfosalicylic acid and strontium chloride are usually used as interference eliminating agents for magnesium. With aluminum and ammonium fluoride, ammonium bifluoride and strontium sulfate as well as 8-hydroxyquinoline as chromium interference eliminator.