Determination of trace elements in cigarette tobacco with the k 0-based NAA method using Es-Salam research reactor

Hamidatou, Lylia; Khaled, S.; Akhal, Tarik; Ramdhane, M.

doi:10.1007/s10967-009-0011-0

Cited by 17 publications

(4 citation statements)

References 14 publications

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“…However, concentrations in tobacco smoke (units of μg/cigarette) of these seven non‐REE metals were reported to be at least an order of magnitude higher than concentrations of La . Similarly, Hamidatou et al . reported lower μg g −1 concentrations of La (0.7‐1.7), Ce (1.0‐2.6) and Sm (0.1‐0.2) in five brands of tobacco than As (2.2‐6.4), Cr (2.4‐29.3), and Zn (27.5‐68.1), yet concentrations of these same three REE (plus seven other REE) showed significant associations with smokers’ homes in the CHDS (Table ) while As, Cr, and Zn concentrations did not .…”

Section: Resultsmentioning

confidence: 80%

“…18 However, concentrations in tobacco smoke (units of μg/cigarette) of these seven non-REE metals were reported to be at least an order of magnitude higher than concentrations of La. 48 Similarly, Hamidatou et al 52 (Table 4) while As, Cr, and Zn concentrations did not. 18 Because the non-REE metals which tend to occur at higher concentrations in tobacco showed no difference in concentration between smokers and non-smokers' homes in the CHDS, it appears unlikely that the association of REE with smokers' homes ( Table 4 and Figure 3B) can be attributed solely to the presence of REE in tobacco.…”

Section: Association Of Ree Concentrations In Homes With Smokersmentioning

confidence: 92%

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Rare earth elements and select actinoids in the Canadian House Dust Study

et al. 2017

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Nationally representative baseline data are presented for rare earth elements (REE), thorium (Th) and uranium (U) in house dust sampled from 1025 urban homes, in units of concentrations (μg g ), loadings (μg m ), and loading rates (ng m d ). Spearman rank correlations indicate that, in addition to outdoor sources, consumer products and building materials can influence indoor dust concentrations of REE, Th, and U. Correlations (P<.01) with numbers of occupants, dogs, and cats suggest soil track-in. Correlations (P<.01) with hardwood floors suggest release of REE additives used in pigments and coatings during daily wear and tear. Concentrations of light REE are elevated in smokers' homes compared to non-smokers' homes (P<.001), suggesting that a key source is "mischmetal," the REE alloy used in cigarette-lighter flints. Indoor sources include geological impurities in raw materials used in consumer products, such as U and Th impurities in bentonite clay used in cat litter, and REE impurities in phosphates used for a variety of applications including dog food and building materials. Median gastric bioaccessibility (pH 1.5) of most REE in dust ranges from about 20% to 29%. Household vacuum samples correlate with fresh dust samples from the same homes (P<.001 for all investigated elements).

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Section: Resultsmentioning

confidence: 80%

Section: Association Of Ree Concentrations In Homes With Smokersmentioning

confidence: 92%

Rare earth elements and select actinoids in the Canadian House Dust Study

et al. 2017

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“…The concept of QC/QA, internal and external validation is considered as an advanced stage in the life cycle of an analytical method. This technique was used for practical applications in several areas of life such as: nutrition, health related to environmental field, mining and industrial fields [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

NAA Algerian Laboratory Evaluation Processed by WEPAL and IAEA during 2011-2012

Hamidatou¹,

Slamene²,

Akhal³

et al. 2013

JASMI

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Participation in inter-comparison programs is an important process to enhance the accuracy and precision of the analytical techniques used in the laboratories. At Es-Salam Research Reactor, our laboratory uses two functional analytical techniques such as INAA and k 0 -INAA in the research projects and for the completion of the service works. Recently, our laboratory has participated in two inter-comparison tests organized by IAEA within the framework of the AFRA project to assess the analytical performance of eighteen (18)

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“…Recently, our laboratory is strongly involved in various areas of application of k 0 -NAA. The present work focuses on the application of the k 0 -NAA method in Nutritional and Health-Related Environmental field [44]. Tobacco holds a leading position among different commodities of human consumption.…”

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confidence: 99%

Concepts, Instrumentation and Techniques of Neutron Activation Analysis

Hamidatou¹,

Slamene²,

Akhal³

et al. 2013

Imaging and Radioanalytical Techniques in Interdisciplinary Research - Fundamentals and Cutting Edge Applications

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Nowadays, there are many elemental analysis methods that use chemical, physical and nuclear characteristics. However, a particular method may be favoured for a specific task, depending on the purpose. Neutron activation analysis (NAA) is very useful as sensitive analytical technique for performing both qualitative and quantitative multielemental analysis of major, minor and traces components in variety of terrestrial samples and extra-terrestrial materials. In addition, because of its accuracy and reliability, NAA is generally recognized as the "referee method" of choice when new procedures are being developed or when other methods yield results that do not agree. It is usually used as an important reference for other analysis methods. Worldwide application of NAA is so widespread it is estimated that approximately 100,000 samples undergo analysis each year. The method is based on conversion of stable atomic nuclei into radioactive nuclei by irradiation with neutrons and subsequent detection of the radiation emitted by the radioactive nuclei and its identification. The basic essentials required to carry out an analysis of samples by NAA are a source of neutrons, instrumentation suitable for detecting gamma rays, and a detailed knowledge of the reactions that occur when neutrons interact with target nuclei. Brief descriptions of the NAA method, reactor neutron sources, and gammaray detection are given below.

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Determination of trace elements in cigarette tobacco with the k 0-based NAA method using Es-Salam research reactor

Cited by 17 publications

References 14 publications

Rare earth elements and select actinoids in the Canadian House Dust Study

Rare earth elements and select actinoids in the Canadian House Dust Study

NAA Algerian Laboratory Evaluation Processed by WEPAL and IAEA during 2011-2012

Concepts, Instrumentation and Techniques of Neutron Activation Analysis

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