Electrodeposition and characterization of Sn on Re filaments for laser resonance ionization mass spectrometry. Issue 15 (3rd April 2023)

• Record Type: Journal Article
• Authors: Wang, Jiangfan; Fan, Jinlong; Wang, Wenliang; Zhang, Xiangbo; Feng, Lei; Zhai, Xiufang; Shen, Xiaopan; Li, Zhiming
• Is Part Of: RSC advances. Volume 13:Issue 15(2023)
• Page Start: 10433
• Page End: 10439
• Publication Date: 2023-04-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d3ra00266g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : An atomic source of 1 μg Sn was prepared by electrodeposition on 3 × 0.7 mm Re filament for LRIMS test. The average detection efficiency was almost 10 times higher than that after dropping the sample with graphene oxide. Abstract : The isotopic analysis of Sn is crucial for geochemical research and surveillance of nuclear contamination. However, commonly used methods face the challenge of isobaric interference. Laser resonance ionization mass spectrometry (LRIMS) is a promising technology for effectively eliminating the isobaric interference effect as it combines the advantages of both resonance ionization and mass spectrometry technologies. In this study, an atomic source of 1 μg Sn was prepared by electrodeposition on a Re filament in a 1–5 × 0.7 mm spot for LRIMS measurement. The effects of voltage, duration, length of the active area, and Pb content on the deposition yield were studied, and the morphology, composition, and valence of the Sn deposits were examined. A maximum yield of over 90% in a 3 × 0.7 mm spot was achieved through the surface modification of Re filaments and optimisation of the electrodeposition parameters. As the Sn 0 atomic state was predominant in the deposit, the average detection efficiency of the LRIMS device using the as-deposited Sn samples was approximately 3.63 × 10 −4, which was almost an order of magnitude higher than that of the sample dropped with graphene oxide solution (4.39 × 10 −5 ).