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Chemistry in Industry : Journal of Chemists and Chemical Engineers of Croatia, Vol. 69 No. 13 (special issue), 2020.

Original scientific paper

https://doi.org/10.15255/KUI.2020.037

Element Determination in Hair by ICP-MS Method: Selection of a Suitable Sample Washing Procedure

Anja Bošnjaković ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia
Ankica Sekovanić ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia
Jasna Jurasović orcid id orcid.org/0000-0002-3183-7327 ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia
Tatjana Orct orcid id orcid.org/0000-0002-9301-4035 ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia
Antonija Sulimanec Grgec orcid id orcid.org/0000-0002-1099-8316 ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia
Martina Piasek ; Institute for Medical Research and Occupational Health Ksaverska c. 2 10 000 Zagreb, Croatia

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Abstract

Human hair is a biological sample that is, unlike blood, noninvasively collected and can be used in the assessment of element intake. Before analysis, hair samples need to be washed to eliminate external contamination, for which no standard procedure exists. The present study evaluated the efficiency of different processes for washing hair samples (by non-ionic detergent, acids, solvents, and their mixtures), including ultrasonication before ICP-MS element (As, Ca, Cd, Cu, Fe, Hg, Mg, Mn, Mo, Pb, Se, and Zn) analysis. All tested washing procedures using detergent or solvents were satisfactory, while nitric and hydrochloric acid solutions yielded to “released” and lost elements due to damaged hair (visible discolouration and hair impairment). The application of ultrasonication improved washing efficiency up to 10 %, depending on the tested element and washing procedure.




This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

human hair sample; washing procedure efficiency; metal analysis; endogenous and exogenous elements

Hrčak ID:

247625

URI

https://hrcak.srce.hr/247625

Publication date:

14.12.2020.

Article data in other languages: croatian

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