k0-NAA quality assessment by analysis of different certified reference materials using the KAYZERO/SOLCOI software

Jačimović, Radojko; Smodiš, Borut; Bučar, T.; Stegnar, P.

doi:10.1023/a:1026116916580

Cited by 58 publications

(19 citation statements)

References 10 publications

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“…For QA/QC purposes, the NIST SRM-1567a Wheat Flour was used (Table 1). The method used is described in detail elsewhere (Jaćimović et al 2003). Uncertainty is given with a coverage factor k = 1 for data obtained by k 0 -INAA, while for NIST SRM-1567a uncertainty is given with k = 2 for certified values Differences in element concentrations were examined using Tukey's honestly significant difference (HSD) test, using Statistica Statsoft (version 8.0), and significant differences were considered for P < 0.05.…”

Section: Methodsmentioning

confidence: 99%

Impact of double Zn and Se biofortification of wheat plants on the element concentrations in the grain

Germ¹,

Pongrac²,

Regvar³

et al. 2013

PLANT SOIL ENVIRON

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Optimisation of the concentrations of essential mineral elements in staple grain diet and reduction in non-essential and potentially toxic elements would considerably alleviate mineral malnutrition and improve the health of humans. Here, wheat (Triticum aestivum L.) plants were biofortified with Zn and/or Se to determine the changes across 36 elements in the grain. The element concentrations were determined by multielemental k 0 -instrumental neutron activation analysis (k 0 -INAA). In comparison to grain from non-biofortified plants, Zn fertilisation increased the grain Zn, Ca, and Mo concentrations, whereas the foliar application of Se only increased the grain Se concentrations. Double biofortification (combined Zn fertilisation and foliar Se) was more effective for the increased Se concentrations in the grain, in comparison to the Se-only biofortified plants, with the grain Zn, Ca and Mo concentrations remained at the same levels as those for the Zn-only biofortified plants. Except for Ba, Br and Rb, the concentrations of the elements analysed were below the detection limits. Double biofortification might be a feasible strategy to efficiently coordinate the mineral quality of wheat grain, although the considerable concentrations of other essential and non-essential elements should not be neglected.

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Section: Methodsmentioning

confidence: 99%

Impact of double Zn and Se biofortification of wheat plants on the element concentrations in the grain

Germ¹,

Pongrac²,

Regvar³

et al. 2013

PLANT SOIL ENVIRON

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“…In the k 0 -standarization method it is generally accepted that an overall uncertainty in most cases is around 4% [22]. Based on our knowledge and experience obtained during the k 0 -method assessment process at the Jožef Stefan Institute, when applying KAYZERO/SOLCOI software, we used 3.5%.…”

Section: Resultsmentioning

confidence: 99%

“…For determination of f (thermal to epithermal flux ratio) and α (parameter which measures the epithermal flux deviation from the ideal 1/E distribution), the "Cd-ratio" method for multi monitor was applied [22]. The values f = 28.8 and α = −0.005 were used to calculate the elemental concentrations.…”

Section: K 0 -Instrumental Neutron Activation Analysismentioning

confidence: 99%

Determination of trace elements in iron minerals by instrumental and radiochemical neutron activation analysis

et al. 2008

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(FeS 2 ) and chalcopyrite (CuFeS 2 )] minerals using the k 0 -method of neutron activation analysis in both forms: instrumental (k 0 -INAA) and radiochemical (k 0 -RNAA) was suggested. In order to avoid interferences from iron on the determination of elements present in trace levels, radiochemical separation was made. Determination of the investigated elements in the aqueous phase was performed by k 0 -RNAA after extraction of iron by isoamyl acetate (IAA) and diisopropyl ether (DIPE) from hydrochloric acid solution. The distribution of 35 elements in extraction systems (with intermediate/medium and long half-lived radionuclides) present in the studied minerals was investigated.

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“…For peak area evaluation, the HyperLab [36] program was used. For determination of f (thermal to epithermal neutron flux ratio) and a (parameter which measures the epithermal neutron flux deviation from the ideal 1/E distribution), the ''Cdratio'' method for multi monitor was applied [37]. The values f = 28.6 and a = -0.001 were used to calculate the element concentrations.…”

Section: Determination Of 238 U and 226 Ra In Plants And Soilsmentioning

confidence: 99%

Transfer of uranium and radium to Chinese cabbage from soil containing elevated levels of natural radionuclides

Smodiš

Černe

Jačimović

et al. 2015

J Radioanal Nucl Chem

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The transfer of 238 U and 226 Ra to Chinese cabbage (Brassica rapa L. subsp. pekinensis (Lour.) Hanelt) was investigated from soils contaminated with uranium-mill tailings (UMT) by means of a pot experiment in laboratory-based conditions applying different levels of soil contamination under various growing conditions. Activity concentrations for 226 Ra in Chinese cabbage varied from 56-276, 156-502 and 277-877 Bq kg -1 dry mass for 20, 40 and 60 % of UMT content in the soil, respectively, and for 238 U from 1.0-2.3 and 2.3-4.7 Bq kg -1 dry mass for 40 and 60 % of UMT content in the soil, respectively. The results showed increased accumulation of 226 Ra and low accumulation of 238 U in cabbage leaves in more contaminated soil.

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k0-NAA quality assessment by analysis of different certified reference materials using the KAYZERO/SOLCOI software

Cited by 58 publications

References 10 publications

Impact of double Zn and Se biofortification of wheat plants on the element concentrations in the grain

Impact of double Zn and Se biofortification of wheat plants on the element concentrations in the grain

Determination of trace elements in iron minerals by instrumental and radiochemical neutron activation analysis

Transfer of uranium and radium to Chinese cabbage from soil containing elevated levels of natural radionuclides

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