Neutron activation analysis: A primary method of measurement

Greenberg, Ronald I.; Bode, P.; Fernandes, Elisabete A. De Nadai

doi:10.1016/j.sab.2010.12.011

Cited by 385 publications

(259 citation statements)

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“…A preliminary characterisation study on two elements (As and Zn) was performed by using neutron activation analysis (k 0 -NAA) as a primary method [19]. The values obtained were in the range of 40-60 mg/kg for As and 20-30 mg/kg for Zn and thus comparable with the ones obtained during the homogeneity and stability tests (Figures 2 and 3).…”

Section: Temperature (°C)supporting

confidence: 62%

Developing a new certified reference material of brown algae for trace metal analysis

Anna

Ricci

Tumba-Tshilumba

et al. 2011

WIT Transactions on Ecology and the Environment

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A certified reference material (CRM) of brown algae is being developed at the Institute for Reference Materials and Measurements (IRMM), European Commission, Joint Research Centre, in order to supply academic and industrial analysts with a new tool useful in the environmental analysis of trace metals.Sixty kg of raw brown algae (species Fucus vesiculosus) was collected from two different sites in Galway (Ireland) and processed according to ISO 34 and ISO 35. A large amount of milled and sieved (at <125 μm) algae material was bottled and subjected to detailed homogeneity and stability tests with regard to the parameters to be certified.The between bottle homogeneity of the total element content of As, Cd, Cu, Hg, Pb, Se and Zn was assessed via a dedicated test, which confirmed the suitable homogeneity of the candidate CRM. The short term stability of the material when stored at high temperature (60°C) for up to 4 weeks was also considered, confirming no degradation under the conditions applied.Milled and sieved algae was also checked for water content by using KarlFischer titration and several oven temperatures (from 85°C to 110°C) in order to establish the most reliable water determination method for the material.Along with these studies, a long term stability isochronous study and the characterisation of the total element content for the above-mentioned metals by using an inter-laboratory comparison approach are in progress, so as to finalise production and release onto the market the brown algae CRM for trace metal analysis.

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Section: Temperature (°C)supporting

confidence: 62%

Developing a new certified reference material of brown algae for trace metal analysis

Anna

Ricci

Tumba-Tshilumba

et al. 2011

WIT Transactions on Ecology and the Environment

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“…The research described in this paper deals with such an orientation on the trace element levels in dry dog food commercially available in Brazil. Instrumental neutron activation analysis (INAA) was used allowing a wide evaluation due to its multi-element capacity (Greenberg et al 2011). …”

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confidence: 99%

Trace element measurement for assessment of dog food safety

Fernandes

Elias

Bacchi

et al. 2017

Environ Sci Pollut Res

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“…The extent of this range is not too unusual: pilot studies and key comparisons organized by the Consultative Committee for Amount of Substance (CCQM) reveal differences among laboratory means determined mostly by national metrology laboratories range from 5% to 15%. 16 For CRM SWCNT-1, several reasons for the variation of inter-and intralaboratory results may be considered: (i) minor differences of nuclear data, namely, radionuclide half-lives, used in relative and k 0 standardization; (ii) interbottle and within-bottle heterogeneity; (iii) variation due to absorbed water content (all results are reported on "as-received basis"); (iv) uncorrected spectral (fission) interferences. The differences of half-lives used in relative standardization 21 compared to those contained, e.g., in the k 0 software package Kayzero for Windows 22 are minimal (zero or up to <± 0.05%) for most radionuclides employed in this work, except for 24 Na (−0.25%), 42 K (+0.32%), and 187 W (−1.17%).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The advantageous role of INAA and PGAA in the elemental characterization of a material that is difficult to bring into a solution and that is easy to contaminate during preparation of the test portion for subsequent analysis by different analytical techniques has again been demonstrated. 16 It may confidently be expected that the increased number of elements for which mass fractions in CRM SWCNT-1 are known will foster further development of rigorous physicochemical methods for characterization of such materials.…”

Section: ■ Conclusionmentioning

confidence: 99%

“…INAA, which has recently been recognized as a primary ratio method of analysis, 16 is ideally suited to the determination of most metallic constituents in SWCNT-1 material. Not only does the method typically possess the needed sensitivity to achieve their quantification, but equally importantly, it does not require any prior treatment of the sample, thereby avoiding the need for dissolution with all of its attendant risks and problems.…”

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confidence: 99%

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Elemental Characterization of Single-Wall Carbon Nanotube Certified Reference Material by Neutron and Prompt γ Activation Analysis

Kučera¹,

Bennett

Oflaz

et al. 2015

Anal. Chem.

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Neutron activation analysis: A primary method of measurement

Cited by 385 publications

References 0 publications

Developing a new certified reference material of brown algae for trace metal analysis

Developing a new certified reference material of brown algae for trace metal analysis

Trace element measurement for assessment of dog food safety

Elemental Characterization of Single-Wall Carbon Nanotube Certified Reference Material by Neutron and Prompt γ Activation Analysis

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