Quality assessment of INAA data for small-sized environmental reference samples

Wanna Wimolwattanapun; Supamatthree Bunprapob; Mang Dung Ho; Sutisna; Yasuji Oura; Mitsuru Ebihara

doi:10.2116/analsci.30.787

Quality assessment of INAA data for small-sized environmental reference samples

Wanna Wimolwattanapun, Supamatthree Bunprapob, Mang Dung Ho, Sutisna, Yasuji Oura, Mitsuru Ebihara^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Instrumental neutron activation analysis (INAA) was applied for the accurate and precise determination of minor and trace elements in small-sized aliquants (1 to 2 mg) of two certified reference materials (CRM), NIES No. 8 and NIST 1632c. Four laboratories used either comparative- or k ₀ -INAA, or both, and repeated the analysis more than ten times for each CRM. Based on z-scores and zeta scores of analytical data, QA/QC in analyzing such small scale of the two reference samples was assessed, revealing that there was a clear difference in the analytical ability among participating laboratories. It was concluded that the two CRM samples on the mg scale can be used as reference samples in INAA of a similarly small-scaled sample, at least for the 16 - 18 elements examined.

Original language	English
Pages (from-to)	787-792
Number of pages	6
Journal	Analytical Sciences
Volume	30
Issue number	8
DOIs	https://doi.org/10.2116/analsci.30.787
Publication status	Published - 2014
Externally published	Yes

Keywords

INAA
QA/QC
Reference samples
Z-score
Zeta score

ASJC Scopus subject areas

Analytical Chemistry

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10.2116/analsci.30.787

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title = "Quality assessment of INAA data for small-sized environmental reference samples",

abstract = " Instrumental neutron activation analysis (INAA) was applied for the accurate and precise determination of minor and trace elements in small-sized aliquants (1 to 2 mg) of two certified reference materials (CRM), NIES No. 8 and NIST 1632c. Four laboratories used either comparative- or k 0 -INAA, or both, and repeated the analysis more than ten times for each CRM. Based on z-scores and zeta scores of analytical data, QA/QC in analyzing such small scale of the two reference samples was assessed, revealing that there was a clear difference in the analytical ability among participating laboratories. It was concluded that the two CRM samples on the mg scale can be used as reference samples in INAA of a similarly small-scaled sample, at least for the 16 - 18 elements examined.",

keywords = "INAA, QA/QC, Reference samples, Z-score, Zeta score",

author = "Wanna Wimolwattanapun and Supamatthree Bunprapob and Ho, {Mang Dung} and Sutisna and Yasuji Oura and Mitsuru Ebihara",

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AU - Wimolwattanapun, Wanna

AU - Bunprapob, Supamatthree

AU - Ho, Mang Dung

AU - Sutisna,

AU - Oura, Yasuji

AU - Ebihara, Mitsuru

N1 - Publisher Copyright: © The Japan Society for Analytical Chemistry.

PY - 2014

Y1 - 2014

N2 - Instrumental neutron activation analysis (INAA) was applied for the accurate and precise determination of minor and trace elements in small-sized aliquants (1 to 2 mg) of two certified reference materials (CRM), NIES No. 8 and NIST 1632c. Four laboratories used either comparative- or k 0 -INAA, or both, and repeated the analysis more than ten times for each CRM. Based on z-scores and zeta scores of analytical data, QA/QC in analyzing such small scale of the two reference samples was assessed, revealing that there was a clear difference in the analytical ability among participating laboratories. It was concluded that the two CRM samples on the mg scale can be used as reference samples in INAA of a similarly small-scaled sample, at least for the 16 - 18 elements examined.

AB - Instrumental neutron activation analysis (INAA) was applied for the accurate and precise determination of minor and trace elements in small-sized aliquants (1 to 2 mg) of two certified reference materials (CRM), NIES No. 8 and NIST 1632c. Four laboratories used either comparative- or k 0 -INAA, or both, and repeated the analysis more than ten times for each CRM. Based on z-scores and zeta scores of analytical data, QA/QC in analyzing such small scale of the two reference samples was assessed, revealing that there was a clear difference in the analytical ability among participating laboratories. It was concluded that the two CRM samples on the mg scale can be used as reference samples in INAA of a similarly small-scaled sample, at least for the 16 - 18 elements examined.

KW - INAA

KW - QA/QC

KW - Reference samples

KW - Z-score

KW - Zeta score

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Quality assessment of INAA data for small-sized environmental reference samples

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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