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Numerical analysis of the Gran methods. A comparative study |
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| Authors: | Micha?owski Tadeusz Kupiec Krzysztof Rymanowski Maciej |
| Institution: | Faculty of Chemical Engineering and Technology, Cracow University of Technology, 31-155 Kraków, Poland |
| Abstract: | The paper concerns mainly the modified Gran methods, considered as extrapolative standard addition methods. Particularly, the approximation: |
| Keywords: | a parameter in Eq (15) C concentration of reagent in T C0 concentration of analyte in D D titrand E voltage G(I) and G(II) original Gran I and Gran II methods MG(I)S and MG(I)A modified Gran I methods in simplified and accurate versions resp MG(II)A modified form of G(II) method T titrant ? ?* ?0 true pre-assumed and Nernstian slopes resp V volume of T added V0 volume of D Veq equivalence volume Veq0 (=10 mL) theoretical Veq value z see Eq (44) |
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