Fig. 5
From: Sample size and the limits to precision in Pb-isotopic dating by ID-TIMS
Total ion yield in Pb isotope analyses of standards (NIST SRM981 and EarlyTime 1×) and samples at the Research School of Earth Sciences, Australian National University. All samples and standards were loaded with 0.3% Aldrich silica gel emitter (Huyskens et al. 2012). A Analyses of rock and mineral fractions of achondrites NWA 6704 and NWA 6693 on Triton Plus between 2012–2017 (data from the table EA4 of Amelin et al. 2019). B, C Analyses of samples (B) and standards (C) for various projects on modified MAT 261 in 2021–2022