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Open Chemistry

formerly Central European Journal of Chemistry

1 Issue per year


IMPACT FACTOR 2016 (Open Chemistry): 1.027
IMPACT FACTOR 2016 (Central European Journal of Chemistry): 1.460

CiteScore 2016: 0.61

SCImago Journal Rank (SJR) 2016: 0.288
Source Normalized Impact per Paper (SNIP) 2016: 0.735

Open Access
Online
ISSN
2391-5420
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Volume 13, Issue 1 (Jan 2015)

Issues

Interlaboratory comparison material homogeneity testing

Gordana K. Pantelić / Dragana J. Todorović / Jelena D. Nikolić / Milica M. Rajačić
Published Online: 2015-01-07 | DOI: https://doi.org/10.1515/chem-2015-0084

Abstract

The homogeneity of fertilizer samples for interlaboratory γ-ray spectrometry comparison was tested by determination of the total γ count rate and the count rates for two 238U γ lines, one 40K line and one common 235U and 226Ra line. Homogeneity testing was accomplished by determination of the minimum, maximum, mean and standard deviation for each parameter and comparison of their standard deviations with predefined tolerances, by Cochran’s test, and by a one-way ANOVA. The standard deviations were all less than these tolerances. All samples passed Cochran’s test and the one-way ANOVA test for homogeneity.

Graphical Abstract

Keywords : proficiency test; gamma spectrometry; Cochran’s test

References

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About the article

Received: 2014-02-28

Accepted: 2014-08-21

Published Online: 2015-01-07


Citation Information: Open Chemistry, ISSN (Online) 2391-5420, DOI: https://doi.org/10.1515/chem-2015-0084.

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© 2015 Gordana K. Pantelić et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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