Multielement analysis of foods by neutron capture prompt γ-ray activation analysis

Anderson, David L.; Cunningham, William C.; Alvarez, George H.

doi:10.1007/bf02035473

Cited by 32 publications

(3 citation statements)

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“…Several analytical methods have been proposed to identify different types of adulterations in fruit juice. Techniques applied comprise profile analysis of sugars, organic acids or flavonoids, as well as analysis of minerals, trace metals, and stable isotopes using high performance liquid chromatography or gas chromatography (Ehling & Cole, 2011;Gómez-Ariza, Villegas-Portero, & Bernal-Daza, 2005;Muntean, 2010), capillary electrophoresis (Saavedra, Rupérez, & Barbas, 2001), 1 H NMR spectroscopy (Cuny et al, 2008), inductively coupled plasma mass spectrometry (Schwartz & Hecking, 1991), and neutron activation analysis (Anderson, Cunningham, & Alvarez, 1992). In most instances, the analytical tools are comparatively expensive.…”

Section: Introductionmentioning

confidence: 99%

Characterisation and classification of pineapple (Ananas comosus [L.] Merr.) juice from pulp and peel

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Characterisation and classification of pineapple (Ananas comosus [L.] Merr.) juice from pulp and peel

et al. 2019

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“…In the former case, the sample shape and size can usually be reproduced easily by using the same container. Thus, the problem arises mainly from the difference in the composition of major elements contained in the sample and from the effect of neutron scattering and absorption by hydrogen atoms …”

Section: Resultsmentioning

confidence: 99%

Nondestructive Determination of Major Elements in a Large Sample by Prompt γ Ray Neutron Activation Analysis

et al. 1996

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An internal monostandard method is proposed for the nondestructive determination of major elements in large samples by prompt γ ray neutron activation analysis. It successfully overcomes the problems characteristic of large samples, such as the absorption and scattering of incident neutrons and the absorption of emitted γ rays. In order to make this proposed method understood theoretically, an equation is presented and its validity for the analysis of large samples discussed. In principle, the proposed method gives relative contents in large solid samples, whereas it allows absolute determination for samples in solution form. As a demonstration for the analysis of a large solid sample, we analyzed an earthen vessel, and the major elements in the sample (Na, Mg, Al, Si, K, Ca, Ti, Mn, and Fe) were determined within the uncertainty of 10%, except for Mn. This method was also tested for samples in solution form, and it was found that the absolute content of a target element could be obtained by constructing a calibration curve using several known standard solutions of different concentrations. Residual radioactivity after irradiation was also examined and found to be so little that the sample could be taken outside the radiation-controlled area within a few days after the irradiation.

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“…Similarly, the literature indicates that freeze-drying samples with acidic pH shows evidence of boron loss, e.g., orange juice, solid boric acid [14][15][16]. As the water sublimates from the sample, boric acid is entrained.…”

Section: Contamination and Loss During Processingmentioning

confidence: 95%

Analytical challenges of low level boron analysis in biological matrices

Downing¹,

Strong²

1999

J. Trace Elem. Exp. Med.

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Multielement analysis of foods by neutron capture prompt γ-ray activation analysis

Cited by 32 publications

References 5 publications

Characterisation and classification of pineapple (Ananas comosus [L.] Merr.) juice from pulp and peel

Characterisation and classification of pineapple (Ananas comosus [L.] Merr.) juice from pulp and peel

Nondestructive Determination of Major Elements in a Large Sample by Prompt γ Ray Neutron Activation Analysis

Analytical challenges of low level boron analysis in biological matrices

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