Laboratory method using electrothermal atomic absorption spectrometry or
inductively coupled plasma-mass spectrometry

Note 1: This method updates and replaces MDHS 46.1 The principal changes which have been made are (i) to recommend the use of filters that are soluble using the dissolution technique described for platinum metal, and (ii) to describe the use of inductively coupled plasma-mass spectrometry for the analysis of sample solutions with a low platinum concentration.