Extraction-Flame Photometric Determination of Boron

Autor:	J. E. Rein, M. E. Kussy, G. V. Wheeler, B. E. Ginther, W. J. Maeck
Rok vydání:	1963
Předmět:	inorganic chemicals Aqueous solution Metal ions in aqueous solution Inorganic chemistry chemistry.chemical_element Ion-association Analytical Chemistry Methyl isobutyl ketone Perchlorate chemistry.chemical_compound chemistry Tetrafluoride Perchloric acid Boron
Zdroj:	Analytical Chemistry. 35:62-65
ISSN:	1520-6882 0003-2700
Popis:	Submilligram quantities of boron were completely extracted from aqueous solution into methyl isobutyl ketone as the tetrabutylammonium boron -- tetrafluoride ion association complex. The boron content of the separated organic phase was determined by direct flame spectrophotometric analysis, using an oxygen-sheathed oxyhydrogen flame as the excitation source. Of 30 metal ions studied, only five interfered at a l to 1 mole ratio to boron. Interfering anions were phosphate, perchlorate, and high levels of nitrate. Nitrate interference was eliminated by suifuric acid fuming prior to extraction. (auth)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8590597d91f12777f71a9118ec8e03a0 https://doi.org/10.1021/ac60194a020 Zobrazit plný text záznamu