3,5-二溴-PADAP-酒石酸光度法測定鈮

Determination of Nb with Photometric Method of 3, 5-Dibromo-PADAP-Tar

摘要: 基于鈮與3,5-二溴-PADAP酒石酸在pH=1.0~4.0時可形成藍紫色的三元絡合物的原理,借助分光光度法測定了低合金鋼等樣品中微量鈮。實驗結果與其它方法對比分析證明,結果相符。但該方法更實用、經濟。

Abstract: The contents of trace Nb in low alloy steels have been determined by using photometric method of a complex compound derived from the reaction between Nb and 3, 5-dibromo -PADAP-tar in the range of pH 1.0~4.0. The experimental results show that it is more accuracy and reliable comparing with other testing methods.