Fast radiochemical extraction of carbon in photoactivation analysis of pure boron

Autor:	B. A. Chapyzhnikov, Yu. M. Tsipenyuk
Rok vydání:	1999
Předmět:	Materials science Extraction (chemistry) Radiochemistry General Physics and Astronomy chemistry.chemical_element law.invention chemistry Impurity law Boiling Irradiation Boron Carbon Dissolution Distillation
Zdroj:	Czechoslovak Journal of Physics. 49:479-482
ISSN:	1572-9486 0011-4626
Popis:	Special fast procedure for radiochemical extraction of carbon impurities from boron samples was developed. The procedure consists of alloying the sample in a mixture of KNO3+KOH at 600°C, dissolving of the cooled melt in water, and subsequent distillation of CO2 from the boiling acidic solution of HNO3. Time span of the whole procedure equals 25 min and provides more than one thousand-fold extraction of initial carbon impurity from the boron sample. Kinetics of the carbon extraction was measured with carbon-11 radiotracers which were induced in the investigated samples by the irradiation with 26 MeV bremsstrahlung.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a2887e33537a8c6d6af2e4aed91aa1df https://doi.org/10.1007/s10582-999-0064-x Zobrazit plný text záznamu Full text from SpringerLink