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The (U-Th)/He laboratory was established in 2000 with apatite, zircon and titanite being routinely analysed. He outgassing is conducted using a semiconductor diode Coherent Quattro FAP laser with fibre optic coupling to the sample chamber, with He content measured using a Balzers quadrupole (QMS 200-Prisma) mass spectrometer. Analysis for parent U, Th and Sm isotopes is carried out using an Agilent 7700X inductively coupled plasma mass spectrometer (ICP-MS).
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Coherent Quattro FAP diode laser
Balzers quadrupole QMS 200-Prisma mass spectrometer
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