| 微波消解-电感耦合等离子体质谱法测定土壤和沉积物中痕量稀土元素 |
| |
| 引用本文： | 陈永欣,黎香荣,韦新红,吕泽娥,谢毓群,蔡维专.微波消解-电感耦合等离子体质谱法测定土壤和沉积物中痕量稀土元素[J].岩矿测试,2011,30(5):560-565. |
| |
| 作者姓名： | 陈永欣 黎香荣 韦新红 吕泽娥 谢毓群 蔡维专 |
| |
| 作者单位： | 防城港出入境检验检疫局; |
| |
| 基金项目： | 科技支撑广西北部湾经济区发展专项(桂科转09320026); 广西自然科学基金项目(桂科自0991295) |
| |
| 摘 要： | 建立了微波消解-电感耦合等离子体质谱法测定土壤和沉积物中15种痕量稀土元素的分析方法。研究了溶样试剂、微波消解程序、标准溶液配制、质谱干扰与内标元素对稀土元素测定的影响。加入氢氟酸能有效打开样品,以HNO3-HF-H2O2混合酸溶解样品,稀土元素的溶出率较高。采用模拟土壤、沉积物中稀土元素天然组成比值的校正溶液,对稀土元素间的干扰具有明显的抑制作用。通过测定单个La、Ce、Pr、Nd和Ba的氧化物及氢氧化物产率,计算出等效干扰浓度,进而校正多原子离子干扰。利用103Rh内标校正系统,有效地抑制了分析信号的动态漂移。方法检出限为1.2～7.1 ng/g,精密度(RSD)≤5.3%(n=6),加标回收率为86.1%～110.1%。使用土壤、沉积物标准物质进行验证,测定结果与标准值相符。建立的方法样品处理程序简单快速、线性范围宽、分析重现性好、结果准确,适用于大批量地质样品的分析。
|
| 关 键 词： | 微波消解 土壤 沉积物 稀土元素 电感耦合等离子体质谱法 |
| 收稿时间： | 2011/1/26 0:00:00 |
| 修稿时间： | 2011/5/10 0:00:00 |
Determination of Trace Rare Earth Elements in Soils and Sediments by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion |
| |
| CHEN Yong-xin,LI Xiang-rong,WEI Xin-hong,Lü Ze-e,XIE Yu-qun,CAI Wei-zhuan.Determination of Trace Rare Earth Elements in Soils and Sediments by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion[J].Rock and Mineral Analysis,2011,30(5):560-565. |
| |
| Authors: | CHEN Yong-xin LI Xiang-rong WEI Xin-hong Lü Ze-e XIE Yu-qun CAI Wei-zhuan |
| |
| Institution: | CHEN Yong-xin,LI Xiang-rong,WEI Xin-hong,Lü Ze-e,XIE Yu-qun,CAI Wei-zhuan(Fangchenggang Entry-Exit Inspection and Quarantine Bureau,Fangchenggang 538001,China) |
| |
| Abstract: | A method to determine concentrations of 15 rare earth elements in soil and sediments by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS) with microwave digestion is reported in this paper.Experimental conditions such as sample dissolution reagents,microwave digestion procedure,standard solution preparation,mass spectrum interferences and internal standards were studied.The samples were dissolved completely by the addition of HF acid.The dissolving rate of rare earth elements(REEs) was improved by using ... |
| |
| Keywords: | microwave digestion soils sediments rare earth elements(REEs) inductively coupled plasma-mass spectrometry(ICP-MS) |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩矿测试》浏览原始摘要信息 |
| 点击此处可从《岩矿测试》下载免费的PDF全文 |
|
