The finite impulse response operator (FIRO) method, developed recently by Jones and Shimokoshi [Applied Spectroscopy 37, 59 (1983)] has been applied to the deconvolution of Mossbauer spectra. The overlapped bands of the Mossbauer spectra of iron oxides, formed in the air oxidation of an aqueous suspension of Fe(OH)2, have been deconvolved by the FIRO method in order that the correct positions and intensities of the lines might be defined. The peak positions so determined can be used with good reliability as initial estimates for the customary method of profile determination by a least-squares fitting routine.
