Development of the complex of nuclear-physical methods of analysis for geology and technology tasks in Kazakhstan

Solodukhin, V. P.; Silachyov, I.; Poznyak, V. L.; Gorlachev, I.

doi:10.1007/s10967-016-4764-y

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The obtained results agree well with the certified data, as one can see from [11]. Reliability of our NAA data is confirmed at regular participation of our specialists in the proficiency tests performed by the Forum for Nuclear cooperation in Asia (FNCA) [13].…”

Section: Neutron Activation Analysis (Naa)supporting

confidence: 86%

“…Instrumental gamma-spectrometry (IGS) was used for determination of the samples' radionuclide composition; neutron activation analysis (NAA), X-ray fluorescence analysis (XRF) and the inductively coupled plasma mass spectrometry (ICP-MS) methods were used in our studies of element composition in the taken samples [4][5][6][7][9][10][11].…”

Section: Methodsmentioning

confidence: 99%

“…More details of the procedures in the field and laboratory investigations are presented in [4][5][6][7][9][10][11].…”

Section: Neutron Activation Analysis (Naa)mentioning

confidence: 99%

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Radionuclides and toxic chemical elements in the transboundary Kyrgyzstan–Kazakhstan rivers

Solodukhin

Poznyak

Kabirova

et al. 2016

J Radioanal Nucl Chem

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The paper presents the results of radiation surveying and determination of radionuclide and elemental composition in water objects (soil, bottom sediments, water) of the transboundary rivers Shu, Shor-Koo, Aksu, Karabalta, Toktas as well as of Tasotkel water-storage in Kazakhstan in vicinity of the border with Kyrgyzstan. Increased contents of natural radionuclides of 238 U and 232 Th series, As, Co, Cs, Cu, Hf, Mo, Pb, Sb, Sc, Zn, Zr and rare earth elements were observed in soil and bottom sediment samples. Increased contents of the following toxic elements were revealed in water samples: B, As, Mo, Ba, U. Negative influence of radiation-hazardous sites in Kyrgyzstan on the contamination of the transboundary rivers with natural radionuclides and toxic elements was revealed.

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Section: Neutron Activation Analysis (Naa)supporting

confidence: 86%

Section: Methodsmentioning

confidence: 99%

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Radionuclides and toxic chemical elements in the transboundary Kyrgyzstan–Kazakhstan rivers

Solodukhin

Poznyak

Kabirova

et al. 2016

J Radioanal Nucl Chem

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“…Then, using the Fe content measured by XRF as the internal standard, the reproducibility of rock analysis for REE content should be improved compared with the INAA relative method. Moreover, XRF complements INAA well in mineral resources exploration, enabling the Fe content of rock samples to always be available [41,42].…”

Section: Methodsmentioning

confidence: 99%

Rare earths analysis of rock samples by instrumental neutron activation analysis, internal standard method

Silachyov

2016

J Radioanal Nucl Chem

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The application of instrumental neutron activation analysis for the determination of long-lived rare earth elements (REE) in rock samples is considered in this work. Two different methods are statistically compared: the well established external standard method carried out using standard reference materials, and the internal standard method (ISM), using Fe, determined through X-ray fluorescence analysis, as an element-comparator. The ISM proved to be the more precise method for a wide range of REE contents and can be recommended for routine practice.

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“…В техническом документе МАГАТЭ (TECDOC) 1215 указано, что на ВВР-К предусмотрено проведение исследований методом НАА [3]. Этот метод успешно применяется для решения задач Республики Казахстан в областях геологии, экологии, археологии, криминалистики, медицины, биологии, сельского хозяйства [4][5][6][7]. Во всем мире НАА остается одним из наиболее передовых аналитических методов как для проведения научных исследований, так и в прикладных целях [8][9][10][11][12].…”

Section: Introductionunclassified

Use of polyethylene consumables in neutron activation analysis for short-lived radionuclides

Bedelbekova¹,

Ленник²,

Sokolenko³

et al. 2023

KazNU Chem Bull

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The neutron activation analysis for short-lived radionuclides at the WWR-K uses a pneumatic transport system (Austria) with specific transport capsules. The irradiated samples are not removed from the transport capsules and are measured directly in the capsule. It is necessary to take into account the fact that the induced activity of the capsule material itself acts as the background radiation in relation to the induced activity of the sample under study. A study of the capsule material and the polyethylene tubes used as sample fixing devices in the center of the transport capsule was performed. Earlier it was found that the HDPE T50 capsule material contains impurity elements Ti, Cl, Al, Na, Ca. It was found that the fixing material contains a larger amount of impurities, which leads to the increase of spectrometric equipment loading and to the increase of relative contribution of individual radionuclides to the final spectrum. The induced activity spectra were analyzed and processed, the content of elements in polyethylene was calculated and it was shown that the analytical signals of Mg-27, Mn-56 and Sb-122m, Cr-51 and Sb-122 refer exclusively to the induced activity of the fixer-tube material. This circumstance does not allow to determine small concentrations of these elements in the samples themselves. The necessity of search of other more pure material for its use as sample fixers at placement in a transport capsule is shown.

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Development of the complex of nuclear-physical methods of analysis for geology and technology tasks in Kazakhstan

Cited by 6 publications

References 7 publications

Radionuclides and toxic chemical elements in the transboundary Kyrgyzstan–Kazakhstan rivers

Radionuclides and toxic chemical elements in the transboundary Kyrgyzstan–Kazakhstan rivers

Rare earths analysis of rock samples by instrumental neutron activation analysis, internal standard method

Use of polyethylene consumables in neutron activation analysis for short-lived radionuclides

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