铂铑网及铂铑网灰中铬的原子吸收光谱分析  

Spectrum Analysis of Chrome Atom Absorption in the Pt-Rh Mesh and Ash

作　　者：许定刊[1] 陈萍[1] 段青兵[1] 

机构地区：[1]中国石化股份公司巴陵分公司质检中心,岳阳414003

出　　处：《化工进展》2003年第10期1119-1121,共3页Chemical Industry and Engineering Progress

摘　　要：建立了用空气 -乙炔火焰原子吸收光谱分析铂铑网及铂铑网灰中铬的分析方法。研究了样品的处理 ,样品处理液中共存元素的干扰和抑制。该方法灵敏度高、准确度好 ,在最佳实验条件下 ,测定铂铑网及铂铑网灰中铬的最小检测限为 0 1μg/g ,变异系数≤ 1% ,加标回收率为 93%～ 98%。The Air-C 2H 2 flame atom absorption spectrophotography was developed for the determination of chrome in the Pt-Rh mesh and ash. Treatment of the sample, interference and restraint of the coexist chemical element were studied.Under optimum conditions,the detection limit for chrome was 0.1?μg/g,the relation standard deviation (RSD) of determination was below 1%,and the recovery of standard addition method was from 93% to 98% . This method is highly accurate and sensitive.

关 键 词：铂铑网 铂铑网灰 铬 原子吸收光谱 己内酰胺 HPO法 氨氧化 

分 类 号：TQ016[化学工程]