18.02.2014 Views

RRFM 2009 Transactions - European Nuclear Society

RRFM 2009 Transactions - European Nuclear Society

RRFM 2009 Transactions - European Nuclear Society

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

HbA1c (%)<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

Se vs HbA1c in Male Control Population<br />

r 2 =0.29<br />

Well Controlled<br />

160 180 200 220 240 260 280 300<br />

Se μg/L<br />

Diabetic control and Selenium<br />

Approximately 80 red blood cell samples (40 Diabetic and 40<br />

Control) were analyzed by NAA for Cr, Fe, Rb, Se and Zn.<br />

To determine the effect of trace elemental concentrations on<br />

the diabetic control the haemoglobin A1c (HbA1c) was also<br />

measured and correlated with elemental data. The test for<br />

HbA1c is a key indicator of diabetes control. It measures the<br />

amount of sugar attached to haemoglobin, the primary protein<br />

in red blood cells and indicates a patient's average blood sugar<br />

level over the previous two to three months. Further work on<br />

the relationship between Se and Cr and diabetic control will<br />

continue. (To be published)<br />

5. Conclusion<br />

Although the neutron flux of SLOWPOKE is relatively low, the reduced scale of operation makes it<br />

possible to safely house the gamma spectroscopy systems close to the irradiation facility, thereby<br />

reducing transfer times from irradiation site to counting systems, as a result small reactors are ideally<br />

suited for short-lived analysis and can obtain detection limits in biological and geological matrices that<br />

are similar or better to those obtained in larger reactors. The data presented here illustrates how NAA<br />

can be used to provide valuable data applicable across a wide spectrum of programmes, particularly in<br />

the earth and environmental sciences. It is this type of application that may well play an important role<br />

in the future of small reactor facilities.<br />

References<br />

[1] Kay, R.E., Stevens-Guille, P.D., Hilbourne, J.W., Jervis, R.E., Slowpoke: A new low cost<br />

laboratory reactor, Inter. J. Appl. Radiation and Isotopes 24 (1973) 509.<br />

[2] C. Grant, G. Lalor, J. Preston, The Jamaican Slowpoke HEU-LEU core conversion, IAEA<br />

TECDOC 1593, Proceedings of a technical meeting held in Vienna, August 28–31, 2006<br />

[3] Kennedy, G., J. St-Pierre, K. Wang, Y. Zhang, J. Preston, C. Grant and M. Vutchkov. , J.<br />

Radioanal. Nucl. Chem. 245(1), ( 2000) 167-172<br />

[4] C. Grant, G. C. Lalor, and M. Vutchkov. Neutron Activation Analysis of Cadmium in<br />

Jamaican Soils. J. Radioanal. Nucl. Chem., 237(1), 109-112, 1998.<br />

[5] C. Grant, G.C., Lalor, M.K. Vutchkov, Trace Elements in Jamaican Tobacco, West Indian<br />

Med J, 53(2), 66-70, 2004.<br />

[6] G.C. Lalor, M.K. Vutchkov, C. Grant, J. Preston, A.M.G. Figueiredo, and D.I.T. Favaro,<br />

2000, INAA of trace elements in biological materials using the SLOWPOKE-2 reactor in<br />

Jamaica: J. Radioanal. Nucl. Chem., 222 (2), 263-266, 2000.<br />

[7] CN Grant, GC Lalor, MK Vutchkov Comparison of bauxites from Jamaica, the Dominican<br />

Republic and Suriname Radioanal. Nucl. Chem., 266(3), 385-388, 2005<br />

[8] Lalor, G.C. et al. (1996). A geochemical atlas of Jamaica, University of the West Indies<br />

Press, Kingston, Jamaica.<br />

[9]<br />

G.C. Lalor , Review of cadmium transfers from soil to humans and its health effects in the<br />

Jamaican environment, Sci Total Environ,400, 162-172, 2008<br />

[10]<br />

J Nriagu, M Boughanen, A Linder, A Howe, C Grant, R Rattray, M Vutchkov and G Lalor,<br />

Levels of As, Cd, Pb, Cu, Se and Zn in bovine kidneys and livers in Jamaica, Ecotoxicol.<br />

Environ. Saf. 72 (2), 564-571, <strong>2009</strong><br />

275 of 455<br />

5

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!