Precision and accuracy attainable with isotope dilution analysis applied to inductively coupled plasma mass spectrometry: theory and experiments

摘要: The use of isotope dilution analysis (IDA) in combination with inductively coupled plasma mass spectrometry (ICP-MS) is discussed. In particular, theoretical calculations are presented on the precision and accuracy attainable relatively high elemental concentration range. results these have been applied to determination amount Re Pt two types catalysts, intention validating high-precision wet-chemical methods developed for systems. Both IDA using ICP-MS were excellent agreement. Furthermore, Pt, different amounts spike material used investigate whether correlate experimental data. show value theory predicting a specified material.