Comparison of δ 13 C analyses of individual foraminifer (Orbulina universa) shells by secondary ion mass spectrometry and gas source mass spectrometry.
Jody B WycechDaniel Clay KellyReinhard KozdonAkizumi IshidaKouki KitajimaHoward J SperoJohn W ValleyPublished in: Rapid communications in mass spectrometry : RCM (2023)
values represent differences in analyte or instrument factors remains unclear.