Trautmann, N Ultratrace analysis and isotope ratio measurements of long-lived radioisotopes by resonance ionization mass spectrometry (RIMS). [electronic resource] - Analytical and bioanalytical chemistry Jan 2004 - 348-55 p. digital Publication Type: Journal Article ISSN: 1618-2642 Standard No.: 10.1007/s00216-003-2183-8 doi