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- W1878206874 abstract "This work reports a fast and efficient procedure for mercury species extraction using Universol® as extractor reagent in soil and sediment samples combined with the cold vapor generation atomic absorption spectrometry (CV AAS) technique. Hg total was determined after oxidation CH3Hg+ to Hg2 + with KMnO4 and reduction Hg2 + to Hg0 with NaBH4. To ensure specificity and sensitivity in the Hg2 + determination, L-cysteine was added before the reduction with SnCl2 to form complex with organic mercury species. Recovery values of between 98 and 102% were obtained for Hgtotal, and 96–100% for Hg2 +. The relative standard deviations were lower than 2.7%. The detection limits were 0.07 and 0.08 mg kg− 1 for Hgtotal and Hg2 +, respectively. The use of Universol® reagent combined with the CV AAS technique proved to be a simple and efficient procedure for the determination of Hgtotal and Hg2 + in soil and sediment samples without interconversion of species allowing chemical speciation studies." @default.
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- W1878206874 date "2016-01-01" @default.
- W1878206874 modified "2023-09-27" @default.
- W1878206874 title "Suitable extraction of soils and sediments for mercury species and determination combined with the cold vapor generation atomic absorption spectrometry technique" @default.
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- W1878206874 doi "https://doi.org/10.1016/j.microc.2015.09.007" @default.
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