Interlaboratory comparison material homogeneity testing
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The homogeneity of fertilizer samples for interlaboratory gamma-ray spectrometry comparison was tested by determination of the total. count rate and the count rates for two U-238. lines, one K-40 line and one common U-235 and Ra-226 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 Cochrans test, and by a one-way ANOVA. The standard deviations were all less than these tolerances. All samples passed Cochrans test and the one-way ANOVA test for homogeneity.
Keywords:
proficiency test / gamma spectrometry / Cochrans testSource:
Open Chemistry, 2015, 13, 1, 656-660Funding / projects:
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1515/chem-2015-0084
ISSN: 2391-5420
WoS: 000355403100078
Scopus: 2-s2.0-84990174664
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VinčaTY - JOUR AU - Pantelić, Gordana K. AU - Todorović, Dragana AU - Krneta-Nikolić, Jelena D. AU - Rajačić, Milica PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/576 AB - The homogeneity of fertilizer samples for interlaboratory gamma-ray spectrometry comparison was tested by determination of the total. count rate and the count rates for two U-238. lines, one K-40 line and one common U-235 and Ra-226 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 Cochrans test, and by a one-way ANOVA. The standard deviations were all less than these tolerances. All samples passed Cochrans test and the one-way ANOVA test for homogeneity. T2 - Open Chemistry T1 - Interlaboratory comparison material homogeneity testing VL - 13 IS - 1 SP - 656 EP - 660 DO - 10.1515/chem-2015-0084 ER -
@article{ author = "Pantelić, Gordana K. and Todorović, Dragana and Krneta-Nikolić, Jelena D. and Rajačić, Milica", year = "2015", abstract = "The homogeneity of fertilizer samples for interlaboratory gamma-ray spectrometry comparison was tested by determination of the total. count rate and the count rates for two U-238. lines, one K-40 line and one common U-235 and Ra-226 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 Cochrans test, and by a one-way ANOVA. The standard deviations were all less than these tolerances. All samples passed Cochrans test and the one-way ANOVA test for homogeneity.", journal = "Open Chemistry", title = "Interlaboratory comparison material homogeneity testing", volume = "13", number = "1", pages = "656-660", doi = "10.1515/chem-2015-0084" }
Pantelić, G. K., Todorović, D., Krneta-Nikolić, J. D.,& Rajačić, M.. (2015). Interlaboratory comparison material homogeneity testing. in Open Chemistry, 13(1), 656-660. https://doi.org/10.1515/chem-2015-0084
Pantelić GK, Todorović D, Krneta-Nikolić JD, Rajačić M. Interlaboratory comparison material homogeneity testing. in Open Chemistry. 2015;13(1):656-660. doi:10.1515/chem-2015-0084 .
Pantelić, Gordana K., Todorović, Dragana, Krneta-Nikolić, Jelena D., Rajačić, Milica, "Interlaboratory comparison material homogeneity testing" in Open Chemistry, 13, no. 1 (2015):656-660, https://doi.org/10.1515/chem-2015-0084 . .