| Popis: |
This p ublication modifies the experimental procedure of slope ratio method for 1:1 metal-chelates via correct choosing of reference samples. This modification was followed in studying complex formation of cerous and ferric ions with 1,2 bis (beta-aminoethoxy) ethane N, N, N', N' sodium sulfonate triacetic acid. The obtained results, after correct choice of reference samples, gave one straight line (for the two chelates) instead of two p arallel lines when the slope ratio method was applied without modification. The discussion of the differences between obtained results before and after modification is given. The correct choice of reference samples may be extended similarly to the other analytical methods of studying complex formation to get more accurate results. |
