Chemical analysis of main arsenic species in mixtures of As and AsF6 |
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Authors: | M Ponikvar B Pihlar |
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Institution: | a Department of Inorganic Chemistry, Jo?ef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia b Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia |
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Abstract: | Known analytical techniques are not applicable to the accurate and precise determination of AsV and total arsenic (Ast) in the mixtures of AsIII and AsF6−. For this reason, an accurate and precise analytical procedure for determination of the content of AsV and Ast in the range of 5-10 mg of As with a relative standard deviation (R.S.D.) smaller than 0.4% was developed. The results were proved by the determination of AsIII by titration with KBrO3 and gravimetric determination of AsF6− species. |
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Keywords: | Elemental chemical analyses Arsenic species Arsenic(III) AsF6&minus |
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