90Sr bioassay in small-volume urine by ICP-MS/MS with CO2 as the reaction gas

Author:

Yang Guosheng1ORCID,Tazoe Hirofumi2,Kim Eunjoo1,Zheng Jian1ORCID,Kowatari Munehiko1,Kurihara Osamu1

Affiliation:

1. National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan

2. Institute of Radiation Emergency Medicine, Hirosaki University, 036-8564, Aomori, Japan

Abstract

Further mitigation: CO2 is a better reaction gas than O2 to overcome isobaric/polyatomic interferences caused by Zr and Ge for 90S analysis by ICP-MS/MS. The method detection limit was 0.978 pg L−1 (5 Bq L−1) in 10 mL urine, with a reasonable throughput (∼6 h for 12 samples).

Funder

Japan Society for the Promotion of Science

Publisher

Royal Society of Chemistry (RSC)

Subject

Spectroscopy,Analytical Chemistry

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