natural radionuclides, solid matrices

Parameter Methode Nachweisgrenze
238U, 230Th, 226Ra, 210Pb, 228Ra, 228Th, 40K γ-ray spectrometry 0,001 Bq g-1
210Pb PC after spontaneous deposition 0,01 Bq g-1
210Po α-particle spectrometry after spontaneous deposition 0,01 Bq g-1
232Th, Th ICP-MS and α-particle spectrometry after radiochemical separation 0,001 Bq g-1
227Ac α-particle spectrometry after radiochemical separation 0,005 Bq g-1
232Th, 228Th, 227Th α-particle spectrometry after radiochemical separation 0,005 Bq g-1
234U, 235U, 238U, U ICP-MS and α-particle spectrometry after radiochemical separation 0,001 Bq g-1

ICP-MS – Mass Spectrometry with Inductively Coupled Plasma
LSC – Liquid Scintillation Counting
PC – Proportional Counting