Summary
Regarding the favourably sensitive nuclear characteristics of iodine and of selenium but the very different half lives of their induced nuclides 128I and 75Se, a radiochemical neutron activation analysis method for simultaneous determination of these elements in a single sample was developed. It is based on the double irradiation LICSIR technique — Long Irradiation for Se (40h), Cooling (a week or more), Short Irradiation for iodine (1–15 min) with following Radiochemistry. After the second short irradiation, the sample is ignited in an oxygen flask and iodine and selenium are sequentially and selectively extracted as elemental iodine and 5-nitro-2,1,3 benzoselena diazole chelate. With the described method biological samples were analysed and the reliability of the results was checked by the analyses of different standard reference materials. Good agreement with certified values and high radiochemical purity of the spectra show the applicability of the radiochemical separation developed.
Similar content being viewed by others
References
National Research Counsel (1980) Recommended Dietary Allowances. NAS Washington, pp 147–151
Ibid, idem pp 162–163
Hetzel BS, Maberly GF (1986) In: Merz W (ed) Trace elements in human and animal nutrition, 5th edn. AP Inc London, pp 139–208
Levander OA (1986) Idem In: pp 209–279
Passwater RA (1980) Selenium as food and medicine. Keats, New Canaan. Connecticut
Pennigton JAT (1988) In: Smith KT (ed) Trace minerals in foods, 1st edn. Dekker, New York, pp 249–289
Wilber GC (1980) Clin Toxicol 17:171–230
Cornelis R, Hoste J (1973) J Radional Chem 13:419–426
Rook HL (1977) J Radioanal Chem 39:351–358
Zmijewska W, Semkow T (1978) J Radioanal Chem 46:73–80
Kronborg OJ, Steinnes E (1975) Analyst 100:835–837
Cook KA, Graham ER (1978) Soil Sci Soc Am J 42:57–60
Orvini E, Gills TE, La Fleur PD (1974) Anal Chem 46:1294–1297
Byrne AR, Kosta L (1974) Talanta 21:1083–1090
Polkowska-Motrenko H, Dermelj M, Byrne AR, Fajgelj A, Stegnar P, Kosta L (1982) Radiochem Radioanal Lett 53:319–328
Dermelj M, Hancman G, Gosar A, Byrne AR, Kosta L (1985) Vestn Slov Kem Drus 32:127–135
Dermelj M, Byrne AR, Franko M, Smodiš B, Stegnar P (1986) J Radioanal Nucl Chem Lett 106:91–98
Dermelj M, Horvat M, Byrne AR, Stegnar P (1987) Chemosphere 16:877–886
Fajgelj A, Dermelj M, Byrne AR, Stegnar P (1988) J Radioanal Nucl Chem Lett 28:93–102
Gvardjančič I, Kosta L, Dermelj M (1980) J Radioanal Chem 58:359–365
Byrne AR, Dermelj M, Tušek-Žnidarič M (1985) J Radioanal Nucl Chem Articl 91:315–322
Byrne AR (1982) Radiochem Radioanal Lett 52:99–110
Shimoishi Y (1977) J Chromatogr 136:85–93
Cortes Toro E, Parr RM, Clements SA (1990) Biological and environmental reference materials for trace elements, nuclides and organic microcontaminants. IAEA/RL/128 (Rev 1) Vienna
NIST SRMs Catalog (1990) McKenzie RL (ed) NIST Spec Publ 260, Washington, pp 51–53
LGC (1989) Certified reference materials 1:20–27
Dermelj M, Keber I, Polkowska-Motrenko H, Stegnar P, Žnidarič M, Kosta L (1981) Vestn Slov Kem Drus 28:218–223
Dermelj M, Byrne AR, Franko M, Smodiš B, Stegnar P (1986) Vestn Slov Kem Drus 33:443–451
Dermelj M, Šlejkovec Z, Šorak-Pokrajac M, Rossbach M (1990) J Radioanal Nucl Chem Lett 144:251–262
Dermelj M, Stibilj V, Stekar J, Stegnar P (1990) Trace amounts of iodine in some human and animal foodstuffs determined by rapid radiochemical neutron activation analysis. Proc. 7th Int Symp Trace Elements in Man and Animals, TEMA 7, Dubrovnik (in press)
Byrne AR, Ravnik V, Kosta L (1978) Sci Tot Environ 6:65–78
Byrne AR, Dermelj M, Vakselj T (1978) Chemosphere 10:815–821
Stijve T, Cardinale E (1974) Trav Chem Aliment Hyg 65:476–478
Allen RO, Steinnes E (1978) Chemosphere 4:371–378
Piepponen S, Liukkonen-Lilja H, Kuusi H (1983) Z Lebensm Unters Forsch 177:257–260
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dermelj, M., Stibilj, V., Stekar, J. et al. Simultaneous determination of iodine and selenium in biological samples by radiochemical neutron activation analysis. Fresenius J Anal Chem 340, 258–261 (1991). https://doi.org/10.1007/BF00321780
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00321780