Author:
M. Menon Savannah State College Department of Chemistry Savannah Georgia (USA)

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Abstract  

A radioreagent method for the determination of boron in submicrogram range is described. This method is based on the reaction of boric acid with hydrofluoric acid labeled with18F and the measurement of the activity of the product, HBF 4* , which is isolated by complexation with methylene blue and extraction with 1,2-dichloroethane. The 0.51 Mev gamma ray activity resulting from18F of an aliquot of the extract is found to be proportional to the amount of boron in the sample. It was found that at least 0.1 μg of boron can be measured by this method with an accuracy of about 5% error. The short-lived nature of18F makes it necessary that the analysis be performed as soon as the isotope is available. The sample to be analyzed should be freed from hydrofluoric acid as well as other species which form precipitate or complexes with Hf. The method was applied successfully to the analysis of one of the Netional Bureau of Standards reference samples.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)