The method for the estimation of trace elements in hair is studied on this paper modifying the circular paper chromatography method shown by Giri and Balakrishnan for the estimation of vitamins from the multivitamin preparation. The elements studied are Ni, Al, Mn, Mg, Zn, Ca, Co, Cu, and Fe. The content of the element is estimated quantitatively by comparison the size and the color density of spots of the standard chromatogram prepared by the known amount of each standard substance and the chromatogram prepared from sample solution, after checking those chromatogram qualitatively. The comparative study has been made between the results from this method and the results from the other methods which are applying routinely at this laboratories. The experimental errors at each elements were within 10% limits. There was no interference between each elements. It is recommendable that this method can be applied to treat numerous speciemens saving times within experimental error of 10%.
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