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Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater

Marta Plavšić ; Ruđer Bošković Institute, Center For Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia
Božena Čosović ; Ruđer Bošković Institute, Center For Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia
Jasminka Škudar ; Ruđer Bošković Institute, Center For Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia

Puni tekst: engleski, pdf (16 MB) str. 111-123 preuzimanja: 91* citiraj
APA 6th Edition
Plavšić, M., Čosović, B. i Škudar, J. (1997). Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater. Croatica Chemica Acta, 70 (1), 111-123. Preuzeto s https://hrcak.srce.hr/135608
MLA 8th Edition
Plavšić, Marta, et al. "Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater." Croatica Chemica Acta, vol. 70, br. 1, 1997, str. 111-123. https://hrcak.srce.hr/135608. Citirano 19.01.2020.
Chicago 17th Edition
Plavšić, Marta, Božena Čosović i Jasminka Škudar. "Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater." Croatica Chemica Acta 70, br. 1 (1997): 111-123. https://hrcak.srce.hr/135608
Harvard
Plavšić, M., Čosović, B., i Škudar, J. (1997). 'Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater', Croatica Chemica Acta, 70(1), str. 111-123. Preuzeto s: https://hrcak.srce.hr/135608 (Datum pristupa: 19.01.2020.)
Vancouver
Plavšić M, Čosović B, Škudar J. Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater. Croatica Chemica Acta [Internet]. 1997 [pristupljeno 19.01.2020.];70(1):111-123. Dostupno na: https://hrcak.srce.hr/135608
IEEE
M. Plavšić, B. Čosović i J. Škudar, "Adsorption of Sulfated Polysaccharides on Mercury and y-Al203 Particles in Sodium Chloride Solution and Seawater", Croatica Chemica Acta, vol.70, br. 1, str. 111-123, 1997. [Online]. Dostupno na: https://hrcak.srce.hr/135608. [Citirano: 19.01.2020.]

Sažetak
Adsorption of Dextran sulfate and natural sulfated polysaccharides from algal sources, i-, K- and A-carrageenans on the mercury stir- face and on the y-Al^a particles were studied by out of phase a.c. voltammetry. On the mercury surface, the adsorption of Dextran sulfate and adsorption of carrageenans are of similar extent. Comparative studies of the adsorption of polysaccharides on aluminium particles showed a considerable adsorption of t-carra- geenan and Dextran-sulfate onto X-AI2O3 particles (r = 300 mg/g and 100 mg/g, respectively). Adsorption studies were conducted at pH = 4 in 0.55 M NaCl and in natural seawater (pH = 7.9). Adsorption of (-carrageenans at the mercury/NaCl solution interface is stronger at the potential of -0.2 V than at -0.6 V vs. Ag/AgCl reference electrode. In seawater, the difference between adsorption of (-carrageenan at two potentials is diminished for concentrations of polysaccharide lower than 10 mg/L, where the concentrations of calcium and magnesium ions present are high enough for neutralization of sulfate groups.
The results support the idea, that in seawater, adsorption on particles may play an important role in the transformation, removal and transport of polysaccharides to the sea bottom.

Hrčak ID: 135608

URI
https://hrcak.srce.hr/135608

Posjeta: 175 *