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  Improved cyanolysis protocol for detection of zero-valent sulfur in natural aquatic systems

Kamyshny, A. (2009). Improved cyanolysis protocol for detection of zero-valent sulfur in natural aquatic systems. Limnology and Oceanography: Methods, 7, 442-448.

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Kamyshny, A.1, Author              
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1Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481693              

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 Abstract: We propose a novel protocol for detection of reactive zero‐valent sulfur (ZVS) in natural aquatic samples including seawater. Reaction with hot potassium cyanide at slightly acidic conditions recovers ZVS from colloidal fraction of particulate elemental sulfur, polysulfides (Sn2−), and their protonated forms. Preconcentration by partial evaporation of the sample and separation of thiocyanate anions by high‐performance liquid chromatography on the C30 reverse phase column modified with poly(ethylene glycol) followed by spectrophotometric detection at 220 nm wavelength allows us to detect reactive ZVS with detection limit of 3 nmol L−1 for fresh water samples and 6 nmol L−1 for seawater samples. Storage at 4°C for 6 weeks does not change the concentration of thiocyanate in the sample by more than 10%.

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Language(s): eng - English
 Dates: 2009-06-05
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 461261
ISI: 000268838500008
 Degree: -

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Title: Limnology and Oceanography: Methods
  Other : Limnol. Oceanogr.: Methods
Source Genre: Journal
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Publ. Info: Waco, Tex. : American Society of Limnology and Oceanography
Pages: - Volume / Issue: 7 Sequence Number: - Start / End Page: 442 - 448 Identifier: ISSN: 1541-5856
CoNE: https://pure.mpg.de/cone/journals/resource/991042728183802