Oral Sessions (Day1, Day2, Day3)
Poster Presentations
(Day1, Day2, Day3)
Poster Presentations
- Day 2, May 16（Thu.） Room P (Multi-purpose Hall)
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2P-40 PDF
Evaluation of Three Different Sample Introduction Systems for Single-Particle Inductively Coupled Plasma Mass Spectrometry (spICP-MS) Applications
To realize a ∼100% transport efficiency (TE) and a high-throughput sample analysis for nanoparticle characterization using single-particle inductively coupled plasma mass spectrometry (spICP-MS), three sample introduction systems, including a high-performance concentric nebulizer with a heated cyclonic spray chamber and a three-stage Peltier-cooled desolvation system (HPCN-APEX), a conventional sample introduction system (i.e., the commercially available MicroMist nebulizer with a cyclonic spray chamber), and a total consumption (TC) system, were evaluated and compared. The TEs of the HPCN-APEX and TC systems were almost 100% at sample uptake rates of 103 and 9.8 μL min-1, respectively, whereas that of the conventional sample introduction system was only 10% at an uptake rate of 112 μL min-1. Because of the dried aerosol conditions in HPCN-APEX, the size and number detection limits of HPCN-APEX were 1.6-fold and 10-fold lower than those of the TC system. The HPCN-APEX showed better detection efficiency for smaller particles and lower particle numbers. This is beneficial not only for environmental monitoring but also for the ultra-trace analysis of particle impurities in semiconductor process chemicals.