Environmental & Resource Sciences Program and Department of Chemistry, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9J 7B8, Canada.
Environ Sci Technol. 2012 Feb 7;46(3):1716-23. doi: 10.1021/es202529w. Epub 2012 Jan 20.
In this work, 13 selenium species in flue gas desulfurization (FGD) waters from coal-fired power plants were separated and quantified using anion-exchange chromatography coupled to inductively coupled plasma mass spectrometry. For the first time, we identified both selenosulfate (SeSO(3)(2-)) and selenocyanate (SeCN(-)) in such waters, using retention time matching and confirmation by electrospray mass spectrometry. Besides selenite and selenate, selenosulfate was the most frequently occurring selenium species. It occurred in most samples and constituted a major fraction (up to 63%) of the total selenium concentration in waters obtained from plants employing inhibited oxidation scrubbers. Selenocyanate occurred in about half of the tested samples, but was only a minor species (up to 6% of the total selenium concentration). Nine additional Se-containing compounds were found in FGD waters, but they remain unidentified at this point.
在这项工作中，我们使用阴离子交换色谱法与电感耦合等离子体质谱法分离和定量了来自燃煤电厂烟气脱硫 (FGD) 水中的 13 种硒物种。我们首次在这些水中鉴定出了硒代硫酸根 (SeSO(3)(2-)) 和硒氰酸根 (SeCN(-))，使用保留时间匹配和电喷雾质谱确认。除了亚硒酸盐和硒酸盐外，硒代硫酸根是最常见的硒物种。它存在于大多数样品中，占采用抑制氧化洗涤器的工厂获得的水中总硒浓度的主要部分（高达 63%）。硒氰酸根存在于大约一半的测试样品中，但只是一个次要物种（占总硒浓度的 6%）。在 FGD 水中还发现了另外 9 种含硒化合物，但目前仍未鉴定。
