Automation of the quantitative determination of elemental content in samples using neutron activation analysis on the IBR-2 reactor at the frank laboratory for neutron physics, joint institute for nuclear research

2013 ◽  
Vol 10 (1) ◽  
pp. 33-36 ◽  
Author(s):  
A. Yu. Dmitriev ◽  
S. S. Pavlov
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Quantitative Determination ◽  
Nuclear Research ◽  
Joint Institute ◽  
Elemental Content ◽  
Neutron Physics

Elemental Composition of Different Slovenian Honeys Using k0- Instrumental Neutron Activation Analysis

2017 ◽  
Vol 100 (4) ◽  
pp. 871-880 ◽  
Author(s):  
Urška Kropf ◽  
Vekoslava Stibilj ◽  
Radojko Jaćimović ◽  
Jasna Bertoncelj ◽  
Terezija Golob ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Instrumental Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Elemental Content ◽  
Botanical Origin ◽  
Low Concentrations ◽  
The Difference ◽  
Instrumental Neutron Activation

Abstract The botanical origin of seven types of Slovenian honey was investigated by analysis of their elemental content using k0-instrumental neutron activation analysis. A total of 28 representative samples were collected from beekeepers all over Slovenia in 2 consecutive years. Nineteen of the 37 elements measured were present in amounts above their LOD. The present study suggests that the determination of only alkali elements might be sufficient for the classification of Slovenian honeys according to their botanical origin. Linden and multifloral honeys can be differentiated on the basis of Na content. The differentiation of forest, spruce, and fir honeys is possible on the basis of differences in Cs, K, and Rb content. The difference between Na and Rb content can be used as a discriminating tool between light and dark honeys, because light honeys (black locust, linden, and multifloral) contained more Na than Rb, whereas it was the opposite for dark honeys (chestnut, forest, spruce, and fir). Statistically significant correlations were found between K and Rb and between K and Cs content. This study represents a considerable step in filling the knowledge gap concerning both the determination of elements present in low concentrations and the botanical origin of Slovenian honey.

scholarly journals Determination of the neutron beam diameter based on the neutron activation analysis

2016 ◽  
Vol 19 (4) ◽  
pp. 147-153
Author(s):  
Son An Nguyen ◽  
Tien Van Dang ◽  
Thang Huu Ho ◽  
Hieu Bao Quoc Phan
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Neutron Beam ◽  
Nuclear Reactor ◽  
Nuclear Research ◽  
Beam Diameter ◽  
Analysis Errors ◽  
Reduced Data

Neutron beam diameter is a very important parameter in the experimental nuclear research. Determination of the correct neutron beam diameter is the best method to prepare corectly the optimal sample size correctly, reduced data analysis errors. To measure the neutron diameter, some methods were used: Simulation by Monte – Carlo method, neutron image, and neutron activation analysis. In this report, we determined the neutron beam diameter of the 3rd horizontal channel of the Dalat nuclear reactor that activated gold foils. The result shows that this method offer quick and more correct results than other methods which had been published preiously [1, 2].

scholarly journals Determination of Cobalt in Seawater Using Neutron Activation Analysis after Preconcentration by Adsorption onto γ-MnO2 Nanomaterial

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Van-Phuc Dinh ◽  
Ngoc-Chung Le ◽  
Ngoc-Tuan Nguyen ◽  
Quang-Thien Tran ◽  
Van-Dong Nguyen ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Research Reactor ◽  
Nuclear Research ◽  
Adsorption Efficiency ◽  
Experiment Data ◽  
Factors Affecting ◽  
Nuclear Research Reactor

The γ-MnO2 nanomaterial has been used to adsorb cobalt in the seawater at Phan Thiet City, Binh Thuan Province, Vietnam. Its concentration is determined by using the neutron activation analysis (NAA) method at the Dalat nuclear research reactor. Factors affecting the uptake of cobalt on the γ-MnO2 material such as the pH, adsorption time, and initial cobalt(II) concentration are investigated. The irradiated experiment data are calculated using the K0-Dalat program. The results obtained show that the trace dissolved cobalt in Phan Thiet seawater is found equal to 0.25 ± 0.04 μg/L (n=5, P=95%) with the adsorption efficiency being higher than 95% (n=4, P=95%).

Applicability of neutron activation analysis (NAA) in quantitative determination of some essential and toxic trace elements in food articles

1996 ◽  
Vol 202 (6) ◽  
pp. 447-450 ◽  
Author(s):  
Marjan Dermelj ◽  
Vekoslava Stibilj ◽  
Anthony R. Byrne ◽  
Ljudmila Benedik ◽  
Zdenka Šlejkovec ◽  
...  
Keyword(s):  
Trace Elements ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Quantitative Determination ◽  
Toxic Trace Elements

scholarly journals Determination of selenium in biological materials by short-time neutron activation analysis using ⁷⁷ᵐSe at the Dalat research reactor

2014 ◽  
Vol 4 (3) ◽  
pp. 36-42
Author(s):  
Van Doanh Ho ◽  
Quang Thien Tran ◽  
Thi Sy Nguyen ◽  
Nhi Dien Nguyen
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Half Life ◽  
Nuclear Research ◽  
Biological Materials ◽  
Standard Reference Materials ◽  
Nuclear Research Institute ◽  
Analysis Technique

A rapid neutron activation analysis technique for determination of the concentration of selenium in biological materials using short-lived radionuclide 77mSe (half-life = 17.4 seconds) has been developed at Dalat Nuclear Research Institute (DNRI). The technique is very simple and rapid. It involves irradiation of a sample for 20 s, decay for 20 s and counting for 20 s. The accuracy of the method has been evaluated by analyzing a number of biological standard reference materials of varied selenium levels. An agreement between measured and certified values was acceptable in regarding to the deviation of the above mentioned two values within 8 percent. The result shows that the utilization of short-lived radionuclide 77mSe is more useful in comparison with long-lived radionuclide 75Se (half-life = 120 days). In addition, it is suggested that a further study for cyclic irradiations should be done in order to enhance the detection limit of the determination of the short-lived radionuclide 77mSe.

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