Atomic Emission Analysis of Human Nails for the Content of Trace Elements

Atomic Emission Analysis of Human Nails for the Content of Trace Elements To obtain data on the concentrations of trace elements in a human body, different biological samples are used; however, nails have some advantages. An optimized procedure is developed for the acid mineralization of human nails for the subsequent determination of trace elements therein by arc atomic emission spectrometry with excitation of a spectrum of a dry mineralization residue from the end of a carbon electrode. A mixture of conc. HNO3 (1 mL) and conc. H2O2 (0.1 mL) was shown to be an optimum reagent for the decomposition of a nail sample with a weight of 0.1 g. The efficiency and process features of acid decomposition upon heating on a plate and in a microwave oven were compared. Seventy three nail samples were analyzed for the contents of Ag, Al, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, and Zn according to the developed procedure. The calculated statistically average contents and concentration ranges of the above-mentioned elements were compared with data of other publications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Analytical Chemistry Springer Journals

Atomic Emission Analysis of Human Nails for the Content of Trace Elements

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Publisher
Pleiades Publishing
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Analytical Chemistry
ISSN
1061-9348
eISSN
1608-3199
D.O.I.
10.1134/S1061934818020107
Publisher site
See Article on Publisher Site

Abstract

To obtain data on the concentrations of trace elements in a human body, different biological samples are used; however, nails have some advantages. An optimized procedure is developed for the acid mineralization of human nails for the subsequent determination of trace elements therein by arc atomic emission spectrometry with excitation of a spectrum of a dry mineralization residue from the end of a carbon electrode. A mixture of conc. HNO3 (1 mL) and conc. H2O2 (0.1 mL) was shown to be an optimum reagent for the decomposition of a nail sample with a weight of 0.1 g. The efficiency and process features of acid decomposition upon heating on a plate and in a microwave oven were compared. Seventy three nail samples were analyzed for the contents of Ag, Al, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, and Zn according to the developed procedure. The calculated statistically average contents and concentration ranges of the above-mentioned elements were compared with data of other publications.

Journal

Journal of Analytical ChemistrySpringer Journals

Published: Mar 12, 2018

References

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