Issue 11, 2022

Detection of PTFE microparticles by ICP-qMS operated in single-particle mode

Abstract

In this study, we examine the possibility of the selective detection of PTFE microparticles by ICP-qMS equipped with O2 dynamic reaction cell (DRC) and operated in single-particle mode. Our analytical method is based on the earlier proposed approach for fluorine detection by ICP-MS/MS through the formation of BaF+ ions (m/z 157) in the plasma. Using microseconds dwell time the single-particle BaF+ spikes with signal intensities significantly higher than the background were detected in the samples containing PTFE microparticles. Under the applied operating parameters, PTFE particles larger than 0.93 μm can be detected. The limit of detection of 8.5 × 105 particles per L was achieved for an acquisition time of 100 seconds. The most frequent particle diameter of 1.2 ± 0.1 μm determined by SP-ICP-MS analysis is consistent with the average diameter of 1.2 ± 0.2 μm, detected by DLS.

Graphical abstract: Detection of PTFE microparticles by ICP-qMS operated in single-particle mode

Article information

Article type
Communication
Submitted
26 јун. 2022
Accepted
04 окт. 2022
First published
11 окт. 2022

J. Anal. At. Spectrom., 2022,37, 2282-2285

Detection of PTFE microparticles by ICP-qMS operated in single-particle mode

F. Gelman, M. Muszyńska, J. Karasiński, O. Lev and L. Halicz, J. Anal. At. Spectrom., 2022, 37, 2282 DOI: 10.1039/D2JA00215A

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