【引用本文】 初晨, 张瑛, 王尚贤, 等. 利用微波等离子体炬四极杆质谱在线测定稀土矿样中的多种稀土元素[J]. 岩矿测试, 2016, 35(5): 468-474. doi: 10.15898/j.cnki.11-2131/td.2016.05.004
CHU Chen, ZHANG Ying, WANG Shang-xian, et al. Direct Determination of Rare Earth Elements in REE Ores Using Microwave Plasma Torch Coupled with Quadrupole Mass Spectrometry[J]. Rock and Mineral Analysis, 2016, 35(5): 468-474. doi: 10.15898/j.cnki.11-2131/td.2016.05.004

利用微波等离子体炬四极杆质谱在线测定稀土矿样中的多种稀土元素

1. 

中国武警后勤部疾病预防控制中心, 北京 102613

2. 

东华理工大学江西省质谱科学与仪器重点实验室, 江西 南昌 330013

3. 

上饶师范学院化学化工学院, 江西 上饶 334001

收稿日期: 2016-03-28  修回日期: 2016-06-15  接受日期: 2016-09-09

基金项目: 国家科技部项目国家重大仪器专项(2011YQ14015009);国家自然科学基金资助项目(21565003)

作者简介: 初晨, 学士, 研究方向为分析化学。E-mail:13810747783@163.com。

通讯作者: 朱志强, 博士, 副教授, 研究方向为质谱分析。E-mail:zhiqiangz@iccas.ac.cn

Direct Determination of Rare Earth Elements in REE Ores Using Microwave Plasma Torch Coupled with Quadrupole Mass Spectrometry

1. 

Center for Disease Control and Prevention, Logistics Department of Chinese Armed Police Force, Beijing 102613, China

2. 

Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China

3. 

School of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, China

Corresponding author: ZHU Zhi-qiang, zhiqiangz@iccas.ac.cn

Received Date: 2016-03-28
Revised Date: 2016-06-15
Accepted Date: 2016-09-09

摘要:随着稀土的应用越来越广泛,开发稀土元素的快速在线检测技术已日趋成为行业发展的需求。本文以微波等离子体炬(MPT)为离子源,以四极杆质谱仪(QMS)作为质量分析器建立了一种快速、直接检测水样中稀土元素的质谱检测方法,并将其应用于分析稀土矿样中的多种稀土元素。研究表明,应用MPT-QMS测定水样中的钇、镧、铈、钕、铕五种稀土元素,检出限(LOD)可达11.0~60.5 μg/L, 测定范围为50~1000 μg/L。当分析固体稀土矿样时,样品经酸溶处理后通过气动雾化形成气溶胶,再进行冷却干燥,气溶胶由MPT的中心管道进入等离子体中,产生稀土元素复合离子,再引入QMS中进行分析,即可以定量地测定矿样中稀土元素的含量。同一样品用电感耦合等离子体质谱(ICP-MS)进行对比实验,两者的检测结果在数量级上接近,证明了MPT-QMS方法在半定量的意义下是准确、可靠的,因而这种快速的检测方法可发展成为水体中金属元素的现场分析方法,应用于环境水、生活水质量在线监测等领域。

关键词: 微波等离子体炬, 等离子体质谱, 稀土元素, 在线检测

Direct Determination of Rare Earth Elements in REE Ores Using Microwave Plasma Torch Coupled with Quadrupole Mass Spectrometry

KEY WORDS: microwave plasma torch, Plasma Mass Spectrometry, rare earth element, on-line determination

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利用微波等离子体炬四极杆质谱在线测定稀土矿样中的多种稀土元素

初晨, 张瑛, 王尚贤, 周润芝, 蒋涛, 朱志强, 卢爱民