scholarly journals Assessment of Nine Micronutrients in Jasmine 85 Rice Grown in Ghana Using Neutron Activation Analysis

2020 ◽  
Vol 9 (2) ◽  
pp. 29
Author(s):  
Michael Kwame Vowotor ◽  
George Amoako ◽  
Baah Sefa-Ntiri ◽  
Samuel Amoah ◽  
Samuel Sonko Sackey ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Life Stage ◽  
Daily Intake ◽  
Principal Component ◽  
Oyster Tissue ◽  
Energy Agency ◽  
Tuna Fish ◽  
Group 2

The amount of micronutrients in food is a key factor that determines the health status of a person. The concentrations of nine micronutrients, Sodium (Na), Magnesium (Mg), Chlorine (Cl), Potassium (K), Calcium (Ca), Vanadium (V), Manganese (Mn), Copper (Cu) and Iodine (I), in polished Jasmine 85 rice, locally cultivated in five rice farming areas in Ghana (Afienya, Afife, Dawhenya, Ashaiman and Aveyime), were determined using Neutron Activation Analysis. The standard materials used as reference were the International Atomic Energy Agency (IAEA)-530 Tuna fish homogenate and the National Institute of Standard and Technology (NIST) USA 1566b Oyster Tissue. Recoveries of the elemental concentrations ranged from 88% to 111% of the certified values. Relative standardization method was used in the quantification of the elements. The range of concentrations measured in the rice are: 142.3-188.1 mg/kg for Na, 483.2-875.7 mg/kg for Mg, 465.6-718.0 mg/kg for Cl, 514.6-2949.0 mg/kg for K, 2303.0-2622.0 mg/kg for Ca, 0.0698-0.1925 mg/kg for V, 9.956-14.460 mg/kg for Mn, 0.8728-1.6790 mg/kg for Cu and 0.1181-0.1447 mg/kg for I. Using Hierarchical clustering analysis and Principal Component Analysis to evaluate the intensities of measured concentrations, K was established to be the most abundant, and was used to categorize two distinct clusters; Group 1 farms (Ashaiman, Afienya, and Dawhenya) and Group 2 farms (Aveyime and Afife). Group 2 farms recorded elevated intensities of micronutrients. With Pearson's correlation coefficient, some noteworthy correlations realized were between Na and K (r = 0.951), Na and V (r = 0.842) and K and V (r = 0.812). This indicated the same or similar source inputs for each pair. The calculated mean daily intake of K exceeded the mean Recommended Dietary Allowable and Adequate Intake for all Life Stage Groups. Estimated health risk associated with the consumption of rice was only present for children between the ages of 1 and 3 for Mg. The information on these nine micronutrients content of the rice from these five farming areas would be valuable in rice consumption studies to evaluate the overall availability of micronutrients to the Ghanaian populace and age groups and also in nutrition planning for analysis of nationwide rice supplies, mainly for regions and countries known to be susceptible to deficiencies of these micronutrients. The techniques espoused in this research can be used to accurately determine the concentration of micronutrients in rice and also trace the area where the rice was produced.

scholarly journals Neutron Activation Analysis characterization procedures for fish consumed at São Paulo City

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Bruno Tappiz ◽  
Edson Gonçalves Moreira
Keyword(s):  
Latin America ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Comparative Method ◽  
Sao Paulo ◽  
São Paulo ◽  
Energy Agency ◽  
Fish Samples

The characterization of edible tissues of fishes consumed by humans is very important for determination of several toxic and potentially toxic elements, ensuring the food safety. The Instrumental Neutron Activation Analysis (INAA) comparative method allows the determination of several of these elements, as well as others, for example of nutritional character. This study is part of an International Atomic Energy Agency (IAEA) technical cooperation project of Latin America and Caribbean countries to ensure the quality of food and biomonitoring of contaminants in shellfish and fishes. Ten specimens of 4 of the most consumed fish in São Paulo city: whitemouth croaker (Micropogonias Furnieri), smooth weakfish (Cynoscion learchus), common snook (Centropomus undecimalis) and Brazilian sardine (Sardinella brasiliensis) were analyzed. Complete procedures for analysis, which includes purchase in the largest warehouse in Latin America, transport to the laboratory, storage, freeze-drying, milling, weighting and others preparations of the subsamples, and the short irradiation parameters for the determination of Br, Cl, K, Mg, Mn and Na are reported. Results obtained under the same irradiation conditions for reference materials (oyster and mussel tissues) for macro and microelements are presented and are in agreement with their certificates, which indicate that the performed analyses were appropriate. Regarding to the mass fraction values obtained for the fish samples, they were in agreement with the literature.

scholarly journals Elemental Characterization of Romanian Crop Medicinal Plants by Neutron Activation Analysis

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Daniela Haidu ◽  
Dénes Párkányi ◽  
Radu Ioan Moldovan ◽  
Cecilia Savii ◽  
Iulia Pinzaru ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Medicinal Plants ◽  
Neutron Activation ◽  
Raw Materials ◽  
Daily Intake ◽  
Contamination Level ◽  
Metallic Elements ◽  
Elemental Characterization

The metallic elements concentrations of medicinal plants (coriander, dill,Echinacea, lavender, chamomile, mint, and plantain, used for phytopharmaceutical products), cultivated in unpolluted region, were analyzed by neutron activation analysis. The essential nutrients, macro-, micro-, and trace elements (K, Ca, Mg, Na, Fe, Mn, Rb, Sr, and Zn), potentially toxic elements (Al, As, Ba, Co, Sb, Cr, and V), and rare earth elements were monitored and were compared with those presented in the literature. An estimation of their contributions to intake and toxicity for a person was made, which revealed that (a) teas prepared from the examined plants represent useful contribution to the food provided intake of three essential macronutrients (K, Ca, and Mg); (b) the Cu, Mn, Rb, Sr, Zn, and rare earths levels are normal or low; (c) the quantities of As, Ba, Co, Sb, Cr, and V do not represent toxicological concerns; (d) the examination of the estimated Al and Fe quantities recovered in infusions in the conditions of usual daily tea consumption is below the Tolerable Daily Intake values. The strategy of cultivation of medicinal plants in unpolluted areas is efficient and beneficial. However, individual plants ability to concentrate preferentially certain elements suggests controlling the contamination level of raw materials.

Elemental composition analysis of Pistacia lentiscus L., leaves collected from Mitidja plain in Algeria using instrumental neutron activation analysis (INAA) technique

2020 ◽  
Vol 108 (10) ◽  
pp. 821-828
Author(s):  
Adel Benarfa ◽  
Samir Begaa ◽  
Mohammed Messaoudi ◽  
Nadjia Hamlat ◽  
Barbara Sawicka
Keyword(s):  
Neutron Activation Analysis ◽  
Instrumental Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Daily Intake ◽  
Good Health ◽  
Composition Analysis ◽  
Pistacia Lentiscus ◽  
Gastric Diseases ◽  
Instrumental Neutron Activation

AbstractMost of the rural Algerian communities believed that Pistacia lentiscus L. leaves have therapeutic capacities to treat many gastric diseases and abdomen aches, whereas, the rural habitants of Mitidja, Algeria powdered P. lentiscus L. leaves and consume it fresh in order to heal mild dyspeptic disorders and peptic ulcer. Therefore, the current study was conducted to investigate and monitor the amount of essential and toxic elements of these leaves. The leaf samples were collected from a place called Mitidja, Algeria in autumn 2014. Thereafter, those samples were subjected to an instrumental neutron activation analysis (INAA). Fourteen elements were assessed (As, Br, Ca, Co, Fe, K, La, Na, Rb, Sb, Sc, Sm, Th and Zn). Where, the elements Ca, Fe, K, Na and Zn presented significant concentrations. On the other hand, it was found that the tolerable daily intake (TDI) of these leaves for an adult person per day, is with the tolerance limits and satisfy the nutritional references. Moreover, P. lentiscus L. leaves might be an important nature supplier source of Ca, K, Na, Fe and Zn for the human body, since these elements are considered as the most dietary supplements recommended by doctors to maintain good health.

scholarly journals APPLICATION OF NEUTRON ACTIVATION ANALYSIS IN CHARACTERIZATION OF ENVIRONMENTAL SRM SAMPLES

2010 ◽  
Vol 9 (2) ◽  
pp. 231-235 ◽  
Author(s):  
Diah Dwiana Lestiani ◽  
Muhayatun Muhayatun ◽  
Natalia Adventini
Keyword(s):  
Neutron Activation Analysis ◽  
Fly Ash ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Environmental Samples ◽  
Coal Fly Ash ◽  
Nuclear Industry ◽  
Estuarine Sediment ◽  
Energy Agency ◽  
Nuclear Technique

Neutron activation analysis (NAA) is a nuclear technique that is excellent, multi-elemental, sensitive and has limit detection up to nanogram level. The application of NAA in analysis of Standard Reference Material (SRM) National Institute of Standard Technology (NIST) 1633b Coal Fly Ash and SRM NIST 1646a Estuarine Sediment was carried out for NAA laboratory inter-comparison program. The samples were distributed by Technology Centre for Nuclear Industry Material, National Nuclear Energy Agency as a coordinator of the inter-comparison program. The samples were irradiated in rabbit facility of G.A. Siwabessy reactor with neutron flux ~ 1013 n.cm-2.s-1, and counted with HPGe spectrometry gamma detector. Several trace elements in these samples were detected. The concentration of Al, Mg, K, Na and Ti in SRM NIST 1633b were 15.11, 7.35, 2.09, 0.192 and 0.756% respectively and the concentration of As, Cr, Mn, Se, V, Sb, Co, Cs, La, Sc and Sm were 137.0, 195.6, 129.4, 9.61, 305.8, 5.45, 56.2, 11.18, 83.73, 41.1 and 19.13 mg/kg respectively. The analysis result in SRM NIST 1646a of the concentration of Al and Na were 2.15 and 0.70% and the concentration of As, Cr, Co, La and Sc were 5.75, 36.3, 4.58, 15.67 and 4.00 mg/kg respectively. These results analysis had relative bias and u-test ranged from 0.4-11.3% and 0.15-2.25. The accuracy and precision evaluation based on International Atomic Energy Agency (IAEA) criteria was also applied. The result showed that NAA technique is applicable for the environmental samples analysis, and it also showed that the NAA laboratory in BATAN Bandung has a good performance.   Keywords: NAA, inter-comparison, estuarine sediment, coal fly ash, environmental samples

scholarly journals EVALUATION OF NAA LABORATORY RESULTS IN INTER-COMPARISON ON DETERMINATION OF TRACE ELEMENTS IN FOOD AND ENVIRONMENTAL SAMPLES

2012 ◽  
Vol 15 (1) ◽  
Author(s):  
Diah Dwiana Lestiani ◽  
Syukria Kurniawati ◽  
Natalia Adventini
Keyword(s):  
Trace Elements ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Environmental Samples ◽  
Good Tool ◽  
Energy Agency ◽  
Accuracy And Precision ◽  
Precision Evaluation ◽  
Laboratory Results

Inter-comparison program is a good tool for improving quality and to enhance the accuracy and precision of theanalytical techniques. By participating in this program, laboratories could demonstrate their capability andensuring the quality of analysis results generated by analytical laboratories. The Neutron Activation Analysis(NAA) laboratory at National Nuclear Energy Agency of Indonesia (BATAN), Nuclear Technology Center forMaterials and Radiometry-PTNBR laboratory participated in inter-comparison tests organized by NAA workinggroup. Inter-comparison BATAN 2009 was the third inter-laboratory analysis test within that project. Theparticipating laboratories were asked to analyze for trace elements using neutron activation analysis as theprimary technique. Three materials were distributed to the participants representing foodstuff, and environmentalmaterial samples. Samples were irradiated in rabbit facility of G.A. Siwabessy reactor with neutron flux ~ 1013n.cm-2.s-1, and counted with HPGe detector of gamma spectrometry. Several trace elements in these sampleswere detected. The accuracy and precision evaluation based on International Atomic Energy Agency (IAEA)criteria was applied. In this paper the PTNBR NAA laboratory results is evaluated.Keywords: inter-comparison, neutron activation analysis, trace elements, foodstuff, environmental samples,NAA laboratory

scholarly journals Large Sample Neutron Activation Analysis of a Peruvian Pottery Artifact

2019 ◽  
Vol 21 ◽  
pp. 20
Author(s):  
T. Vasilopoulou ◽  
I. E. Stamatelatos ◽  
E. Montoya ◽  
P. Bedregal ◽  
I. Tsalafoutas ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Elemental Concentration ◽  
Gamma Ray ◽  
Complex Geometry ◽  
Correction Factors ◽  
Energy Agency ◽  
Large Sample ◽  
Intercomparison Study

The present work was carried out within the first Large Sample Neutron Activation Analysis (LSNAA) intercomparison study organized under the auspices of the International Atomic Energy Agency (IAEA). Replicates of a Peruvian pottery object, representing a Pre-Columbian archaeological artifact, were prepared by the Instituto Peruano de Energia Nuclear (IPEN) and distributed to 10 laboratories with LSNAA capa- bilities. The LSNAA results were compared against values derived by conventional Instrumental Neutron Activation Analysis (INAA) on small amounts of the material used to produce the test object. The results of the intercomparison study will be presented in detail in a separate publication. In this work, the LSNAA methodology developed at ’Demokritos’ for analysis of large and irregular shaped objects is discussed. An accurate description of the complex geometry of the object was obtained by Computerized Tomography X-ray scanning. The correction factors required for the effects of neutron self-shielding and gamma-ray self-attenuation within the large sample material were derived by Monte Carlo simulations using MCNP code. The results of the study showed that LSNAA provides elemental concentration values with a satisfactory agreement against values obtained by conventional INAA. Therefore, LSNAA is a technique suitable for the purpose of analysis of intact pottery objects of irregular shape for archaeological studies.

scholarly journals Quantitative Epithermal Neutron Activation Analysis of Seven Micro Elements in Breast Milk of Lactating Mothers from the Central region of Ghana

2020 ◽  
Author(s):  
Irene Korkoi Aboh ◽  
Michael K. Vowotor ◽  
Andrews Adjei Druye
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Standard Reference Materials ◽  
Cape Coast ◽  
Energy Agency ◽  
Epithermal Neutrons ◽  
Lactating Mothers ◽  
Materials Used ◽  
Micro Elements

AbstractBackgroundEpithermal instrumental neutron activation analysis (EINAA) technique is used for the determination and estimation of the concentration levels of micronutrients such as Sodium (Na), Magnesium (Mg), Potassium (K), Calcium (Ca), Manganese (Mn), Copper (Cu) and Iodine (I) in breastmilk.AimTo examine the concentration of seven micro elements in the breastmilk of lactating mother who were exclusively breastfeeding.MethodsThis study employed quantitative experimental research where 27 lactating mothers voluntarily participated in the study from two health facilities in the Cape Coast Metropolitan area. Data was collected over a period of four weeks. A three millimetre (3mm) thick of flexible boron was used to cut off thermal neutrons in order to assess epithermal neutrons. This was done to create an activation energy which examines the amount of the 7 micro nutrients in the breastmilk. The standard reference materials used were the International Atomic Energy Agency (IAEA)-336; IAEA-407, IAEA-350 and National Institute of Standard and Technology (NIST) USA SRM 1577b. The Relative standardization method was used in the quantification of the elements.ResultsThe study achieved about 94.7% accuracy. The estimated health risk calculated showed that the concentrations of chlorine (Cl) and iodine (I) were high in the order I > Cl with all very far above the maximum Upper Limit (UL) of the daily Recommended Dietary Allowance (RDA) for all life stages except for children below 8 years.ConclusionMn is found in very high quantities in the diet consumed by the parents of babies. These children could be exposed to metabolic disorders or unexplained diseases in future without knowing their origin.

Thermal neutron activation analysis of some toxic and trace chemical element contents in Mentha pulegium L.

2018 ◽  
Vol 106 (9) ◽  
pp. 769-774 ◽  
Author(s):  
Samir Begaa ◽  
Mohammed Messaoudi
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Toxic Elements ◽  
Daily Intake ◽  
Thermal Neutron Activation ◽  
Mentha Pulegium ◽  
Analytical Technique ◽  
Research Activities ◽  
Essential And Toxic Elements

Abstract Our laboratory of neutron activation analysis is highly involved in nutrition applications in the framework of research activities using the Algerian research reactor. The medicinal and aromatic plants of Mentha pulegium L. have been largely used in traditional medicine for several centuries to contribute significantly to human health related to digestive ailments, it is also used to reduce nervousness and anxiety. The present study focuses on the analysis of leaves of M. pulegium L., for evaluation of essential and toxic elements using a sensitive nuclear analytical technique based on instrumental neutron activation analysis (INAA). Twenty-one elements were assessed (As, Ba, Br, Ca, Ce, Cr, Cs, Co, Eu, Fe, Hf, K, La, Na, Rb, Sb, Sc, Sm, Sr, Yb and Zn) and the accuracy of the method was evaluated by analyzing the Certified Reference Materials (CRMs) GBW 07605 (tea leaves) and NIST-SRM 1573a (tomato leaves). The daily intake of essential and toxic elements was determined and compared with the recommended values and was found to be well below the tolerance limits.

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