Using the sodium sulfate interference for lead to test the fork platform design

We use the recovery of Pb from Na 2 SO 4 as a test of the quality of STPF conditions in graphite furnace atomic absorption spectroscopy. No pyrolysis step and no modifier are used for this protocol, thus making the test simpler and improving the precision. Analytical results obtained using the commercial standard captured platform, a loose platform and a fork platform are compared