采用盐酸、双氧水溶解试样,高氯酸冒烟氧化磷为正磷酸.在1.0mol/L硝酸介质中,磷钼杂多酸被抗坏血酸还原为磷铋钼蓝进行光度测定.铝基体不干扰测定,样品加标回收试验,回收率在102％-105％之间,该方法操作简单、时间短,结果准确可靠.
After dealing with aluminum alloy sample,Calcium carbonate deposit aluminium at proper acidity,filter liquor is adjusted to proper acidity,adding manna sugar,Sodium hydroxide standard solution titrate to red.results of recovery tests found were in the range of 97.60%-102.67%。
铝硼合金经碱溶后,加硝酸酸化处理,加内标元素钇消除物理因素的影响.标准曲线通过加入铝基体校正基体效应的干扰,用电感耦合等离子体发射光谱法对铝硼合金中硼、硅、铁进行了分析.测定结果的相对标准偏差均小于2%(n=11),加标回收率在98.75～102.50%.
