EXTRACTION-FLAME PHOTOMETRIC DETERMINATION OF BORON
作者： W. J. Maeck , M. E. Kussy , B. E. Ginther , G. V. Wheeler , J. E. Rein
DOI: 10.1021/AC60194A020
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摘要: Submilligram quantities of boron were completely extracted from aqueous solution into methyl isobutyl ketone as the tetrabutylammonium -- tetrafluoride ion association complex. The content separated organic phase was determined by direct flame spectrophotometric analysis, using an oxygen-sheathed oxyhydrogen excitation source. Of 30 metal ions studied, only five interfered at a l to 1 mole ratio boron. Interfering anions phosphate, perchlorate, and high levels nitrate. Nitrate interference eliminated suifuric acid fuming prior extraction. (auth)
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