Electrothermal atomic absorption spectrometric determination of cadmium and lead in environmental, botanic and biological samples by different permanent modifiersElectronic supplementary information (ESI) available: Temperature program for modifier coating; optimization of mass and mass ratio of permanent modifiers and cadmium peak profiles; pyrolysis temperatures; characteristic masses and detection limits of cadmium and lead; and contents and recoveries of cadmium and lead in various reference materials. See http://www.rsc.org/suppdata/ja/b3/b315881k/

Permanent modifiers (Zr, W, Ru, Zr–Ru and Zr–W) thermally deposited on platforms inserted in pyrolytic graphite tubes and Pd + Mg(NO3)2 conventional modifier...