Precise measurement of <sup>40</sup>K isotopic anomalies in small samples using a TIMS with a 10<sup>13</sup> ohm amplifier-Reference-Cited by-同舟云学术

Precise measurement of ⁴⁰K isotopic anomalies in small samples using a TIMS with a 10¹³ ohm amplifier

Published:2023 Issue:7 Volume:38 Page:1461-1468
ISSN:0267-9477
Container-title:Journal of Analytical Atomic Spectrometry
language:en
Short-container-title:J. Anal. At. Spectrom.

Author:

Zhang Yingnan¹²,Wang Siwei¹,Liu Jia¹²,Yang Bing¹²,Qin Liping¹²^ORCID

Affiliation:

1. Deep Space Exploration Laboratory, CAS Key Laboratory of Crust-Mantle Materials and Environments, University of Science and Technology of China, Hefei 230026, China

2. CAS Center for Excellence in Comparative Planetology, Hefei 230026, China

Abstract

Here we present a novel method of measuring K isotopic anomalies under a small ion current. Additionally we have developed a new method to calibrate gain and baseline factors of the 1013 Ω amplifier, effectively addressing its time and temperature drifts.

Funder

National Natural Science Foundation of China

Fundamental Research Funds for the Central Universities

China National Space Administration

Publisher

Royal Society of Chemistry (RSC)

Subject

Spectroscopy,Analytical Chemistry

Link

http://pubs.rsc.org/en/content/articlepdf/2023/JA/D3JA00059A

Reference45 articles.

1. Elemental composition from gamma-ray spectroscopy of the NEAR-Shoemaker landing site on 433 Eros

2. The Major-Element Composition of Mercury’s Surface from MESSENGER X-ray Spectrometry

3. Potassium isotopic evidence for a high-energy giant impact origin of the Moon

4. Potassium isotopic compositions of howardite-eucrite-diogenite meteorites

5. Gallium isotopic evidence for extensive volatile loss from the Moon during its formation

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