摘要
采用电感耦合等离子体原子发射光谱法（ICP-OES）同时测定废旧SCR脱硝催化剂中多种微量元素。通过对废旧SCR脱硝催化剂进行化学处理,建立了适用于ICP-OES测定的废旧SCR脱硝催化剂预处理方法。建立了电感耦合等离子体原子发射光谱法同时测定脱硝催化剂中P、S、As、Fe、Tl、Cr、Mg、Ni、Pb、Na、K、Hg这12种元素的方法,该方法的检出限为0.000 2～0.053 3μg/m L,回收率为93.59%～101.07%,相对标准偏差RSD（n=10）为0.88%～3.83%。能准确测定废旧SCR脱硝催化剂中的多种微量元素,可用于废旧SCR脱硝催化剂再生处理、回收、报废的评价。
By inductively coupled plasma atomic emission spectrometry（ ICP-OES）,simultaneous determination of a variety of trace elements in waste SCR denitration catalyst is conducted. The chemcial pretreatment method suitable for the determination of waste SCR denitration catalyst by ICP-OES is established. 12 Kinds of trace elements,such as P,S,As,Tl,Cr,Mg,Fe,Ni,Hg,Pb,Na,K,can be simultaneously determined. The detection limit of this method is 0. 000 2-0. 053 3 g / m L. The recovery rate and relative standard deviation（ RSD）（ n = 10） are 93. 59%- 93. 59% and 0. 88%- 3. 83%,respectively. This method can accurately measure trace elements in waste SCR denitration catalyst and is promising for the eveluation of the regeneration,recycling and scrap of the waste SCR denitration catalyst.
出处
《现代化工》
CAS
CSCD
北大核心
2016年第6期183-186,共4页
Modern Chemical Industry
关键词
废旧SCR脱硝催化剂
电感耦合等离子体发射光谱法
微量元素
再生回收
waste SCR denitration catalyst
inductively coupled plasma emission spectrometry
trace elements
regeneration and recycling
