论文部分内容阅读
本文研究了GB223.23-82丁二酮肟镍直接光度法(利用差示分光光度法)测定钢中的高镍,其中对适宜的发色量、试剂量、比色条件、干扰元素作了系统的试验,方法简单、稳定、准确度高。除高钴样品外,显色液中Mn≤1.5毫克,不干扰测定。方法已成功地用于测定高铬不锈钢中的高镍,用本法所得的结果曾与标准值相比较,准确度可与重量法媲美。
In this paper, GB223.23-82 dimethylglyoxime nickel direct spectrophotometry (using differential spectrophotometry) Determination of high nickel in steel, which suitable for the amount of color, reagent volume, color conditions, interference elements made System test, the method is simple, stable, high accuracy. In addition to high-cobalt samples, the color liquid Mn ≤ 1.5 mg, does not interfere with the determination. The method has been successfully used for the determination of high nickel in high chromium stainless steel. The results obtained with this method have been compared with the standard values and the accuracy is comparable to that of gravimetric method.