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Izvorni znanstveni članak
A New Method for Data Analysis in Studies of Trace Metal Complexation
Ivica Ružić
; Ruđer Bošković Institute, Center for Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia
Jadranka Pečar
; Ruđer Bošković Institute, Center for Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia
| Puni tekst: engleski, pdf (20 MB) | str. 229-245 | citiraj | |
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APA 6th Edition Ružić, I. i Pečar, J. (1997). A New Method for Data Analysis in Studies of Trace Metal Complexation. Croatica Chemica Acta, 70 (1), 229-245. Preuzeto s https://hrcak.srce.hr/135617 MLA 8th Edition Ružić, Ivica i Jadranka Pečar. "A New Method for Data Analysis in Studies of Trace Metal Complexation." Croatica Chemica Acta, vol. 70, br. 1, 1997, str. 229-245. https://hrcak.srce.hr/135617. Citirano 13.12.2019. Chicago 17th Edition Ružić, Ivica i Jadranka Pečar. "A New Method for Data Analysis in Studies of Trace Metal Complexation." Croatica Chemica Acta 70, br. 1 (1997): 229-245. https://hrcak.srce.hr/135617 Harvard Ružić, I., i Pečar, J. (1997). 'A New Method for Data Analysis in Studies of Trace Metal Complexation', Croatica Chemica Acta, 70(1), str. 229-245. Preuzeto s: https://hrcak.srce.hr/135617 (Datum pristupa: 13.12.2019.) Vancouver Ružić I, Pečar J. A New Method for Data Analysis in Studies of Trace Metal Complexation. Croatica Chemica Acta [Internet]. 1997 [pristupljeno 13.12.2019.];70(1):229-245. Dostupno na: https://hrcak.srce.hr/135617 IEEE I. Ružić i J. Pečar, "A New Method for Data Analysis in Studies of Trace Metal Complexation", Croatica Chemica Acta, vol.70, br. 1, str. 229-245, 1997. [Online]. Dostupno na: https://hrcak.srce.hr/135617. [Citirano: 13.12.2019.] |
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Sažetak
A new method for correction of the asymptote at high additions of trace metal during titration was developed for the van den Berg- Ružić plot. Using this method, a more accurate value for complex- ing capacity can be obtained from titration data. The accuracy of this parameter is a limiting factor for detailed studies of trace metal complexation in natural waters. In addition, a sequential analysis of the shape of titration curves is proposed, by which more than two different groups of complexes can be identified in the case of a large ratio between the complexing capacity and trace metal concentration originally present in the water sample. These procedures are illustrated by the analysis of synthetic titration curves for two and three groups of different complexes. The complexation parameters were reproduced with satisfactory accuracy in both cases. Simultaneous use of both the van den Berg-Ružić and Scatchard plots is suggested in order to test the agreement between the experimental titration data and theoretical predictions based on the complexation parameters determined.
Hrčak ID: 135617
URI
https://hrcak.srce.hr/135617
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