摘要
利用苯芴酮与锑(Ⅲ)的显色反应,对镀银溶液中的锑进行光度测定。试验结果表明,在乳化剂OP存在下的0.09~0.18mol/L硫酸介质中,显色体系的最大吸收波长位于560nm。表明摩尔吸光系数为5.85×104L/(mol·cm),锑浓度介于0.14~1.40μg/mL,遵守比尔定律。加标回收率97.3%~104.7%,本方法简便快速,且具有良好的选择性。
Cailiao Baohu 2004, 37( 1 ) ,58~59(Ch). Stibium(Ⅲ) ( Sb^(3+)) in silver plating bath was determined by spectrophotometry using the chromogenic reaction of phenylfluorone and Sb^(3+). Experimental results show that the maximum absorption of system is 560 nm in 0.09~0.18 mol/L H_2 SO_4 solution with emulsion OP. the apparent absorption coefficient is 5.85 x 104 L/( mol·cm) , and Beer′s law accords with Sb^(3+)concentration in the range of 0.14 ~ 1.40 μg/mL. The recovery of adding standard solution is 97.3% ~ 104.7%. The method is simple and rapid with satisfied selectivity.
出处
《材料保护》
CAS
CSCD
北大核心
2004年第1期58-59,共2页
Materials Protection
关键词
锑测定
光度法
苯芴酮
镀银溶液
determination of stibium
spectrophotometry
phenyltluorone
silver plating solution