Authors:
S. El-Bayoumy Atomic Energy Establishment Nuclear Chemistry Department, Nuclear Research Centre Cairo (Egypt)

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M. El-Kolaly Atomic Energy Establishment Nuclear Chemistry Department, Nuclear Research Centre Cairo (Egypt)

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Abstract  

The adsorption behaviour of Mo tagged with99Mo (in the form of molybdate and phosphomolybdate) and99mTc as pertechnetate werw measured using silver-coated carbon, activated carbon and an equal mixture of both at HNO3 concentrations ranging from 0.01 to 2M. It was found that, on activated carbon and silver-coated carbon, molybdate and phosphomolybdate have high absorption values at 0.01 M HNO3 and activated carbon has a high adsorption value for99mTcO 4 at the same low acid concentration. The capacity of Ag−C, C and Ag−C/C for molybdate at pH 2–3 has been found to be 240 mg MoO3/g, 320 mg MoO3/g and 360 mg MoO3/g, respectively. For phosphomolybdate, the capacity of the same substrates at pH2–3 was found to be 550 mg MoO3/g, 650 mg MoO3/g and 1000 mg MoO3/g, respectively. These results indicate that with phosphomolybdate the capacity of Mo on the substrates is 2–3 times higher than with molybdate.

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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)