| Literature DB >> 16240668 |
Miguel Murillo1, Nereida Carrión, Mercedes Quintana, Georgia Sanabria, Manuel Ríos, Leopoldo Duarte, Franklin Ablan.
Abstract
This study focuses on the determination of selenium and iodine in human thyroids. The glands were digested using nitric acid in a microwave oven. Selenium was determined by inductively coupled plasma optical emission spectrometry (ICP-OES) using a new sample introduction system consisting of a reduction system coupled to a hydride generation nebulizer (DHGN). Iodine was determined by using the Sandell-Kolthoff procedure. The detections limits were 0.2 ng/mL and 0.3 ng/mL for the determination method of selenium and iodine, respectively. The amount of iodine in the whole gland was 3.44 +/- 1.11 microg/g. The lowest iodine level was 2.34 microg/g and the highest 5.21 microg/g. The lowest selenium concentration for a single sample was 505 +/- 51 ng/g and the highest 1495 +/- 204 ng/g depending on the fraction of the gland selected.Entities:
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Year: 2005 PMID： 16240668 DOI： 10.1016/j.jtemb.2005.07.005
Source DB: PubMed Journal: J Trace Elem Med Biol ISSN： 0946-672X Impact factor: 3.849