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引用本文:   符靓, 施树云, 马俊才. 电感耦合等离子体串联质谱准确测定软磁铁氧体粉料中的有害和掺杂元素. 分析化学, 2019, 47(9): 1382-1389. doi:  10.19756/j.issn.0253-3820.191232 [复制]

Citation:   FU Liang , SHI Shu-Yun , MA Jun-Cai . Accurate Determination of Harmful and Doping Elements in Soft Magnetic Ferrite Powders Using Inductively Coupled Plasma Tandem Mass Spectrometry. Chinese Journal of Analytical Chemistry, 2019, 47(9): 1382-1389. doi: 10.19756/j.issn.0253-3820.191232 [复制]

电感耦合等离子体串联质谱准确测定软磁铁氧体粉料中的有害和掺杂元素

收稿日期: 2019-04-25

基金项目: 本文系国家自然科学基金项目(No.21275163)和重庆市科委技术创新与应用示范项目(No.cstc2018jscx-msyb0675)资助

Accurate Determination of Harmful and Doping Elements in Soft Magnetic Ferrite Powders Using Inductively Coupled Plasma Tandem Mass Spectrometry

Received Date:  2019-04-25

Fund Project:  This work was supported by the National Natural Science Foundation of China (No.21275163) and the Technology Innovation and Application Demonstration of Chongqing Municipal Science and Technology Commission (No.cstc2018jscx-msyb0675).

提出了在电感耦合等离子体串联质谱(ICP-MS/MS)的MS/MS模式下利用混合反应气消除软磁铁氧体粉料分析中质谱干扰的新策略。选择HNO3-HCl为混合消解试剂,软磁铁氧体粉料样品经微波消解后,采用ICP-MS/MS测定有害元素Na、Mg,以及掺杂元Al、K、Ti和Co。采用混合反应气NH3/He/H2,在MS/MS模式下通过质量转移法和原位质量法消除干扰。研究结果表明,所有分析元素均获得了低背景等效浓度和高灵敏度测定,检出限分别为17 ng/L (Na)、3.1 ng/L (Mg)、5.4 ng/L (Al)、11 ng/L (K)、0.64 ng/L (Ti)和0.53 ng/L (Co)。利用扇形磁场电感耦合等离子体质谱(SF-ICP-MS)对所建立的方法进行评价,在95%置信水平上,两种分析方法的测定值无显著差异,表明所建立的方法准确可靠。本方法简单快速,可无干扰地测定软磁铁氧体粉料中的Na、Mg、Al、K、Ti、Co,为软磁铁氧体粉料中有害和掺杂元素的质量控制提供了新的技术手段。

关键词:   软磁铁氧体粉料, 电感耦合等离子体串联质谱, 有害元素, 掺杂元素, 混合反应气
Key words:   Soft magnetic ferrite powder, Inductively coupled plasma tandem mass spectrometry, Harmful element, Doping element, Mixed reaction gases
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电感耦合等离子体串联质谱准确测定软磁铁氧体粉料中的有害和掺杂元素

符靓, 施树云, 马俊才

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