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| 微波消解与ICP-OES/ICP-MS测定飞灰中的多种元素 | |
| 引用本文： | 王珲,宋蔷,姚强,陈昌和,俞非漉.微波消解与ICP-OES/ICP-MS测定飞灰中的多种元素[J].光谱实验室,2012,29(1):525-528. |
| 作者姓名： | 王珲 宋蔷 姚强 陈昌和 俞非漉 |
| 作者单位： | 1. 清华大学热科学与动力工程教育部重点实验室 100084;中冶建筑研究总院有限公司 100088 2. 清华大学热科学与动力工程教育部重点实验室 100084 3. 中冶建筑研究总院有限公司 100088 |
| 基金项目： | 国家高技术研究发展计划(863计划 |
| 摘 要： | 研究了不同温度以及HNO3、HNO3/H2O2、HNO3/HF和HNO3/HF+H3BO34种酸对飞灰微波消解效果和元素分析的影响.以NIST-1633b为飞灰标准物质.建立了用HNO3/HF (9mL+ 1mL)分解0.05g飞灰,再加入10mL 4％(ρ)的H3BO3中和过量HF及氟化物沉淀的两步微波消解方法.并利用ICP-OES检测了Al、Ca、Fe、Mg、K、Na、S、Si和Ti等9种矿物元素,元素回收率在92％-105％之间；利用ICP-MS检测了V、Cr、Mn、Co、Ni、Cu、Zn、As、Se、Sr、Cs、Ba、Eu和Pb等14种重金属元素,元素回收率在83％-109％之间.各元素检测的RSD均小于3％. |
| 关 键 词： | 飞灰 微波消解 电感耦合等离子体-发射光谱法 电感耦合等离子体-质谱法 酸 多种元素 |
Determination of Multi-Elements in Fly Ash by ICP-OES and ICP-MS with Microwave Digestion |
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| WANG Hui , SONG Qiang , YAO Qiang , CHEN Chang-He , YU Fei-Lu.Determination of Multi-Elements in Fly Ash by ICP-OES and ICP-MS with Microwave Digestion[J].Chinese Journal of Spectroscopy Laboratory,2012,29(1):525-528. | |
| Authors: | WANG Hui SONG Qiang YAO Qiang CHEN Chang-He YU Fei-Lu |
| Institution: | Wang Hui(a,b) Song Qianga Yao Qianga Chen Chang-Hea Yu Fei-Lub a(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University, Beijing 100084,P.R.China) b(Central Research Institute of Building and Construction Co.Ltd.,MCC,Beijing 100088,P.R.China) |
| Abstract: | The influences of different temperature and four acids（including HNO-3,HNO-3/H2O2, HNO3/HF and HNO3/HF+H3BO3） on decomposition of fly ash by microwave digestion and the element analysis were studied with NIST1633b as fly ash standard substance.The contents of 9 mineral elements（Al,Ca,Fe,Mg,K,Na,S,Si and Ti） in fly ash were determined by inductively coupled plasma-optical emission spectrometry（ICP-OES）.The contents of 14 heavy metal elements （V,Cr,Mn,Co,Ni,Cu,Zn,As,Se,Sr,Cs,Ba,Eu and Pb） were determined by inductively coupled plasma-mass spectrometry（ICP-MS）.The results showed that 0.05g fly ash was completely decomposed by microwave digestion with HNO3/HF（9mL+lmL）,then added 4%H3BO3（10mL） neutralized excess hydrogen fluoride and fluoride precipitation.The recoveries of 9 mineral elements were from 92%to 105%,and the recoveries of 14 heavy metals were from 83%to 109%.All RSDs of each elements were below 3%. |
| Keywords: | Fly Ash Microwave Digestion ICP-OES ICP-MS Acid Multi-Elements Corresponding author |
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