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It was reported that in the ICP-AES determination of microamounts of antimony and tin in ferromolybdenum, charge injection device (CID) was used as detector in the measurement. The optimum analytical conditions (i.e. the choice of analytical wavelength the rationization of sample dissolution and etc) and the working parameters of the instrument were studied thoroughly. As a result of the study of the interference of matrix components (Mo and Fe) to the determination of Sb and Sn, it was ascertained that in the preparation of calibration curve, about 40% (mass percentage) of pure iron should be added as a correction for its matrix interference. Limits of detection for Sb and Sn were found to be 0.0011% and 0.004% respectively. Recoveries obtained were in the range of 99% to 103%.

 

Inductively coupled plasma atomic emission spectroscopy (ICP-AES), also referred to as inductively coupled plasma optical emission spectrometry (ICP-OES), is an analytical technique used for the detection of trace metals. It is a type of emission spectroscopy that uses the inductively coupled plasma to produce excited atoms and ions that emit electromagnetic radiation at wavelengths characteristic of a particular element. It is a flame technique with a flame temperature in a range from 6000 to 10000 K. It is also a solution technique & standard silicate dissolution methods are employed. The intensity of this emission is indicative of the concentration of the element within the sample.

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