Complementary analysis of trace elements in nail samples using instrumental neutron activation analysis and inductively coupled plasma mass spectrometry
Instrumental neutron activation analysis (INAA) and inductively coupled plasma-mass spectrometry (ICPMS) were applied to determine minor and trace elements in human nail samples. Validation of each method was performed by measuring NIES No. 5 Human Hair certiˆed reference material. Good agreemen...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Japanese Association of Forensic Science and Tech.
2014
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/10257/ http://ir.unimas.my/id/eprint/10257/1/Complementary%20analysis%20of%20trace%20elements%20in%20nail%20samples%20using%20instrumental%20neutron%20activation%20analysis%20and%20inductively%20coupled%20plasma%20mass%20spectrometry%20%28abstract%29.pdf |
| Summary: | Instrumental neutron activation analysis (INAA) and inductively coupled
plasma-mass spectrometry (ICPMS) were applied to determine minor and trace
elements in human nail samples. Validation of each method was performed by
measuring NIES No. 5 Human Hair certiˆed reference material. Good agreements
were observed between certiˆed and measured values for these methods. Nail
samples collected from 18 healthy volunteers were washed, dried and cut into small
pieces. The samples were divided into two portions, one of which was analyzed by
INAA and the other by ICPMS. In INAA, Na, Mg, Al, Cl, K, Ca, V, Mn and Cu
were recognized and the concentrations of these elements were calculated. On the
other hand, peaks of Cu, Zn, Sr,Ag, Sn, Sb, Ba,CeHg and Pb were observed in the
spectrum by ICPMS. Copper, Zn, Sr, Ag and Pb were determined by ICPMS
because these elements showed su‹ciently high intensity without spectrum
interference. Nine and ˆve elements were determined by INAA and ICPMS.
Copper was determined by both methods, and good correlation was observed.
Combination of INAA and ICPMS has an advantage to provide more information
of elemental contents for nail samples if more than only one of the two methods is
employed. |
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