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https://doi.org/10.5599/jese.2014.0053

Electroanalytical methods in characterization of sulfur species in aqueous environment

Irena Ciglenečki ; Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
Marija Marguš ; Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
Elvira Bura-Nakić ; Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia
Ivana Milanović ; Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia

Puni tekst: engleski, pdf (691 KB) str. 155-163 preuzimanja: 317* citiraj
APA 6th Edition
Ciglenečki, I., Marguš, M., Bura-Nakić, E. i Milanović, I. (2014). Electroanalytical methods in characterization of sulfur species in aqueous environment. Journal of Electrochemical Science and Engineering, 4 (4), 155-163. https://doi.org/10.5599/jese.2014.0053
MLA 8th Edition
Ciglenečki, Irena, et al. "Electroanalytical methods in characterization of sulfur species in aqueous environment." Journal of Electrochemical Science and Engineering, vol. 4, br. 4, 2014, str. 155-163. https://doi.org/10.5599/jese.2014.0053. Citirano 17.09.2019.
Chicago 17th Edition
Ciglenečki, Irena, Marija Marguš, Elvira Bura-Nakić i Ivana Milanović. "Electroanalytical methods in characterization of sulfur species in aqueous environment." Journal of Electrochemical Science and Engineering 4, br. 4 (2014): 155-163. https://doi.org/10.5599/jese.2014.0053
Harvard
Ciglenečki, I., et al. (2014). 'Electroanalytical methods in characterization of sulfur species in aqueous environment', Journal of Electrochemical Science and Engineering, 4(4), str. 155-163. https://doi.org/10.5599/jese.2014.0053
Vancouver
Ciglenečki I, Marguš M, Bura-Nakić E, Milanović I. Electroanalytical methods in characterization of sulfur species in aqueous environment. Journal of Electrochemical Science and Engineering [Internet]. 2014 [pristupljeno 17.09.2019.];4(4):155-163. https://doi.org/10.5599/jese.2014.0053
IEEE
I. Ciglenečki, M. Marguš, E. Bura-Nakić i I. Milanović, "Electroanalytical methods in characterization of sulfur species in aqueous environment", Journal of Electrochemical Science and Engineering, vol.4, br. 4, str. 155-163, 2014. [Online]. https://doi.org/10.5599/jese.2014.0053

Sažetak
Electroanalytical (voltammetric, polarographic, chronoamperometric) methods on an Hg electrode were applied for studying of different sulfur compounds in model and natural water systems (anoxic lakes, waste water, rain precipitation, sea-aerosols). In all investigated samples typical HgS reduction voltammetric peak, characteristic for many different reduced sulfur species (RSS: sulfide, elemental sulfur, polysulfide, labile metal sulfide and organosulfur species) was recorded at about -0.6 V vs. Ag/AgCl reference electrode. In addition, in anoxic waters which are enriched with sulfide and iron species, voltammetric peaks characteristic for the presence of free Fe(II) and FeS nanoparticles (NPs) were recorded at -1.4 V and around -0.45 V, respectively. Depending on the used electroanalytical method and experimental conditions (varying deposition potential, varying time of oxidative and/or reductive accumulation, sample pretreatment i.e. acidification followed by purging) it is possible to distinguish between different sulfur species. This work clearly shows a large potential of the electrochemistry as a powerful analytical technique for screening water quality regarding presence of different reduced sulfur species and their speciation between dissolved and colloidal/nanoparticle phases.

Ključne riječi
Voltammetry; chronoamperometry; speciation, reduced sulfur species, metal sulfide nanoparticles, Hg electrode, anoxic water samples

Hrčak ID: 130212

URI
https://hrcak.srce.hr/130212

Posjeta: 445 *