Development of Multiple Collector Inductively Coupled Plasma Mass Spectrometry Single Particle Analysis System Based on High-Speed Oscilloscope and Its Application to Isotopic Analysis of Individual Simulated Nuclear Particles
10.19756/j.issn.0253-3820.241262
- VernacularTitle:基于高速示波器的多接收电感耦合等离子体质谱单颗粒分析系统的搭建及其对模拟核颗粒的同位素分析
- Author:
Peng-Ju XING
1
;
Yuan FU
;
Stanley Nicholas BELSHAW
;
Jun-Hang DONG
;
Xing LIU
;
Hong-Tao ZHENG
;
Zhen-Li ZHU
Author Information
1. 中国地质大学(武汉),生物地质与环境地质国家重点实验室,武汉 430070
- Keywords:
Multiple collector inductively coupled plasma mass spectrometry;
Single particle analysis;
Single particle inductively coupled plasma mass spectrometry;
Rare earth particles;
Simulated nuclear particles
- From:
Chinese Journal of Analytical Chemistry
2024;52(10):1591-1601
- CountryChina
- Language:Chinese
-
Abstract:
The analysis of nano-micro nuclear particles has attracted significant attention due to the crucial role of their elemental and isotopic characteristics in tracing the origins of particulate matter and assessing its potential risks to human health and the environment.However,challenges persist in obtaining accurate and consistent element profiles and ratios for small-sized nanoparticles due to their low level and the transient nature.In this study,a high-speed digital oscilloscope was integrated with multiple collector inductively coupled plasma mass spectrometry(MC-ICP-MS)to develop a high time-resolution"Event-triggered signal capture"(ETSC)system for single particle analysis.This innovative approach enabled the analysis of element/isotope within rare earth nanoparticles at ag-fg level.The ETSC accurately recorded the complete profile of single particle,event captured by the electron multiplier with nanosecond time resolution,allowing for high-sensitivity element analysis and high-precision isotope analysis of single particles.The results demonstrated that the ETSC system could achieve quantitative analysis of ag levels of ytterbium(Yb)in 50-nm rare earth-doped particles,with a detection limit as low as 38 ag for Yb.Moreover,the isotopic precision of single particle analysis for 173/171Yb could reach 0.047(standard deviation),and the standard error for isotopic analysis of multiple particles could achieve a level of 2‰-3‰(permil)for 173/171Yb.Finally,the capability of ETSC system to analyze environmental samples was demonstrated through the analysis of doped ytterbium oxide nanoparticles.All these findings demonstrated that the ETSC provided a unique method for elemental and isotopic analysis of single nuclear particles.
