What question did this study set out to answer?

This research aims to enhance the transport efficiency of metal-labelled ion-exchange polymer microparticles in single particle ICP-MS.

May 8, 2026Open Access

Optimization of an Infrared-Heated Sample Introduction System for Single-Particle Inductively Coupled Plasma Mass Spectrometry Analysis of Metal-Labelled Ion-Exchange Polymer Microparticles

Key Points

This research aims to enhance the transport efficiency of metal-labelled ion-exchange polymer microparticles in single particle ICP-MS.
Developed an infrared-heated sample introduction system.
Analyzed the impact on transport efficiency for metal-labelled microparticles in spICPMS.
Compared performance metrics before and after optimization.
Achieved a significant increase in transport efficiency compared to the standard method, p<0.01.
Improved detection limits for microplastics were recorded with the optimized system.
Quantitative analysis rendered more consistent and reliable across various particle sizes.

Abstract

Single particle inductively coupled plasma mass spectrometry (spICPMS) is increasingly employed for quantification of microplastics (MPs). However, routine analysis of polymer MPs remains constrained by the poor transport efficiency (TE)...

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