论文部分内容阅读
铋盐催化、抗坏血酸还原钼蓝光度法测定微量磷的方法,已在钢铁分析中得到广泛应用,但从不少资料的报导来看,一些主要试剂如钼酸铵、抗坏血酸、铋盐等的用量及酸度范围都不同程度地存在差异。本文为拟定铜合金中磷的分析方法,在影响因素较多的情况下,选用四水平五因素正交表L_(16)(4~5)安排试验程序,进行多因素正交试验,经16次试验即获得酸度条件及各试剂用量的最佳配比,从而缩短了条件试验时间,在灵敏度、稳定性等方面都收到较好效果。试验
Bismuth salt catalysis, ascorbic acid reduction molybdenum blue photometric method for the determination of trace phosphorus has been widely used in the analysis of steel, but many data reports, some of the major reagents such as ammonium molybdate, ascorbic acid, bismuth salt dosage And acidity range are different degrees of difference. This paper is to develop a method for the analysis of phosphorus in copper alloy. Under the condition of many influencing factors, a four-level five-factor orthogonal table L_ (16) (4 ~ 5) is used to arrange the test procedure, Sub-test that access to acid conditions and the best ratio of the amount of each reagent, thereby shortening the conditions of the test time, the sensitivity, stability, etc. have received good results. test