Serum aluminum determination by instrumental neutron activation analysis in long-term haemodialysis patients |
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| Authors: | I E Stamatelatos K Katopodis Y Bersos J A Kalef-Ezra G Lefkopoulos K Siamopoulos |
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| Institution: | (1) Institute of Nuclear Technology and Radiation Protection, NCSR “Demokritos”, Aghia Paraskevi, 153 10, Greece;(2) Department of Internal Medicine, Division of Nephrology, University of Ioannina, 451 10 Ioannina, Greece;(3) Medical Physics Laboratory, Medical School, University of Ioannina, 451 10 Ioannina, Greece;(4) Clinical Chemistry Laboratory, Sismanoglio Hospital, 151 26 Maroussi, Greece |
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| Abstract: | Serum aluminum levels were determined by instrumental neutron activation analysis in 31 patients undergoing long-term haemodialysis.
Aluminum-28 1.778 MeV (T
1/2=2.24 min) γ-rays produced by the thermal neutron reaction27Al(n,γ)28Al were detected. Successive irradiation of the samples at epithermal neutron fluence was performed to correct for the interference
from the fast neutron reaction31P(n,α)28Al. Serum aluminum level in this group of subjects was adequately represented by a lognormal distribution with a mean and
variance of 16.5 μg/l and 16.8 μg/l, respectively. The results obtained were found to be in agreement with serum aluminum
determination performed by electrothermal atomic absorption spectrophotometry (r
2=0.97). Instrumental neutron activation can provide a rapid technique to routinely monitor long-term haemodialysis patients
in order to identify individuals at greater risk to develop aluminum toxicity. |
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