摘要
在磷酸介质中,铑(Ⅲ)对溴酸钾氧化二安替比林对氨基苯基甲烷(DApAM)显色反应具有明显的催化作用,由此建立了一种铑的高灵敏分析方法,其检出限为2.0×10-2μg·L-1,铑(Ⅲ)含量在0～30μg·L-1范围内符合比耳定律,方法用于催化剂中痕量铑的测定,结果满意。
In a phosphoric acid medium, the oxidation reaction of diantipyryl-p-amino-phenylmethane
(DApAPM) by KBrO3 is catalyzed by the presence of rhodium (Ⅲ). Absorption maxima of both the catalytic and
non-catalytic reaction lies at the wavelength of 540nra Detection limit of the reaction was found to be 2. 0×10-2μg
·L-1. Beer's law holds in the concentration range of 0 to 30μg of Rh(Ⅲ) in L of solution. The proposed method
has been applied to the determination of Rh(Ⅲ) in catalysts.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2003年第8期453-454,457,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
