“…It has been suggested that a thermally stable compound and/or solid solution could be formed between palladium and an analyte. [1][2][3][4][5][6][7][8][9][10][11] For moderately volatile elements, magnesium nitrate can be reduced to the oxide and made to imbed the analyte in the matrix of magnesium oxide. 12,13 The instrumental techniques used to study these mechanisms have involved X-ray diffraction spectrometry, 8 X-ray photoelectron spectrometry, 5,8 mass spectrometry, 6 scanning electron microscopy 11 and Fourier transform infrared spectrometry.…”