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claudia-bouman
Team TFS
Team TFS
1) Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081HV Amsterdam, The Netherlands, 2) Thermo Fisher Scientific, Hanna-Kunath-Str. 11, Bremen, 28199, Germany, 3) Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081HV Amsterdam, The Netherlands
Analytica Chimica Acta (2014), V819, pp49–55, DOI:10.1016/j.aca.2014.02.007
Measurement of small ion beams by Thermal Ionisation Mass Spectrometry using new 1013 Ohm resistors
Koornneef JM (1), Bouman C (2), Schwieters JB (2), Davies GR (3)
We tested 5 newly manufactured 1013 ohm resistors in the feedback loop of Faraday cup amplifiers to measure small ion beams by Thermal Ionisation Mass Spectrometry (TIMS). To investigate the precision and accuracy of analyses using these new amplifiers we measured Sr and Nd isotopes of reference standards at a range of ion currents (3.2 × 10−16 to 1 × 10−12 A, corresponding to intensities of 32 μV to 100 mV on a default 1011 ohm amplifier) and on small amounts of material (100 and 10 pg).
  • TIMS
  • Triton Plus
  • 1013 ohm amplifiers
  • Sr, Nd
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Last update:
‎11-09-2021 04:22 AM
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