Determinação estectrofotométrica de fósforo em extratos de solos e material vegetal
Palavras-chave:
determinação espectrofotométrica de fósforo, complexo fosfo-molíbdico, ácido sulfúrico concentrado, subcarbonato de bismuto, interferência de ferro IIIResumo
The objetives of this study was three fold; first, to de- termine the best concentration of ammonium molybdate, bismuth subcarbonate and ascorbic acid, second, to determine the desirable acidity of these solutions, and third, to determine the appopriate wavelength to use in the colorimetric determi- nation of phosphorus in soil and plant extracts.
Referências
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