RAPID QUANTITATIVE DETERMINATION OF EIGHT MINERAL ELEMENTS IN PLANT TISSUE BY A SYSTEMATIC PROCEDURE INVOLVING USE OF A FLAME PHOTOMETER

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Abstract
A systematic procedure for the detn. of Ca, Na, K, Mg, P, S, Fe and Mn in plant tissue samples of from 1 to 2 g. has been developed. The procedure involves the flame photometric determination of Ca, Na and K; the colorimetric detn. of Fe, Mn, Mg and P; and the gravimetric detn. of S as BaSO4. By using the procedure, it is possible to determine the 8 elements in 48 tissue samples in 2 days. The methods have been compared with standard procedures for the elements and found to be accurate and reliable.