Radiochemical neutron activation analysis for 36 elements in geological material: Au, Ag, Bi, Br, Cd, Cs, Ge, In, Ir, Ni, Os, Pd, Rb, Re, Sb, Se, Sn, Te, Tl, U, and Zn as well as Sc, Y, and REE

Anders, E. E.; Wolf, Rudolf; Morgan, John; Ebihara, Mitsuru; Woodrow, A.B.; Janssens, Marie-Josée; Hertogen, Jan

doi:10.2172/6843488

Cited by 6 publications

(2 citation statements)

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“…Various analytical methods such as gravimetry (e.g., Anders et al . 1988), inductively coupled plasma‐atomic emission spectrometry (e.g., Ebihara et al . 1994) and reactivation (e.g., Ebihara et al .…”

Section: Resultsmentioning

confidence: 99%

Redetermination of Mass Fractions of Three Halogens (Cl, Br, I) for Seventeen USGS Geochemical Reference Materials

Ebihara

Shirai

Sekimoto

2023

Geostandard Geoanalytic Res

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The mass fractions of Cl, Br and I were obtained by radiochemical neutron activation analysis (RNAA) of seventeen USGS geochemical reference materials (RMs), for which we had published halogen contents in GGR (Sekimoto and Ebihara 2017). Except for three RMs, 100 mg to > 300 mg of each powder material was used for a single analysis. After 10 min of neutron irradiation, a rapid radiochemical purification procedure was performed. Chemical yields were determined by the reactivation method. Each RM was analysed multiple times and consistent values were obtained for each element. Of the seventeen RMs, CLB‐1, DGPM‐1 and QLO‐1a were also analysed by INAA. The INAA and RNAA results for CLB‐1 and DGPM‐1agree within 4%, implying that RNAA values obtained in this study are reliable. Compared with the 2017 data, the Cl and Br values obtained in this study were consistent, but the I values were 1/4 to 1/8 lower for all samples. It is concluded that the quantitative values of Cl and Br published in GGR in 2017 are reliable, while the I values are incorrect. Therefore, it is recommended that the I contents in the USGS RMs determined in this study be substituted in place of previous values.

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Section: Resultsmentioning

confidence: 99%

Redetermination of Mass Fractions of Three Halogens (Cl, Br, I) for Seventeen USGS Geochemical Reference Materials

Ebihara

Shirai

Sekimoto

2023

Geostandard Geoanalytic Res

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“…Because of its relatively short half-life and low energy, this γ-ray is not always detectable in chondritic metals. In place of this γ-ray, the 20.2 keV Rh Kα X-ray emitted by 17 d 103 Pd is often used in the literature . In measuring the Pd standard, a peak at 22.2 keV was also detected in addition to the 20.2 keV X-ray.…”

Section: Resultsmentioning

confidence: 99%

Determination of 18 Siderophile Elements Including All Platinum Group Elements in Chondritic Metals and Iron Meteorites by Instrumental Neutron Activation

1996

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An instrumental neutron activation method is developed to analyze chondritic metals and iron meteorites. By changing irradiation and decay times, and selecting suitable γ-ray and X-ray photopeaks, not only all platinum group elements (Ru, Rh, Pd, Os, Ir, Pt) but also other siderophilic elements (Fe, Co, Ni, Cu, Ga, Ge, As, Mo, Sb, W, Re, Au) can be nondestructively determined in the meteoritic metal samples. To obtain analytical data as accurate as possible, interfering reactions and neutron flux gradients during irradiation are considered. Siderophile elemental abundances measured for the Odessa iron meteorite are highly consistent with the literature values. Rh abundances for bulk H, L, LL, EH, and EL chondrites, which had been scarcely reported in the literature, are derived from Rh/Ni abundance ratios in the metal separates of the corresponding chondritic groups.

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Analysis by nuclear reactions and activation a current bibliography

Bujdosó

1991

Journal of Radioanalytical and Nuclear Chemistry, Articles

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Radiochemical neutron activation analysis for 36 elements in geological material: Au, Ag, Bi, Br, Cd, Cs, Ge, In, Ir, Ni, Os, Pd, Rb, Re, Sb, Se, Sn, Te, Tl, U, and Zn as well as Sc, Y, and REE

Cited by 6 publications

References 0 publications

Redetermination of Mass Fractions of Three Halogens (Cl, Br, I) for Seventeen USGS Geochemical Reference Materials

Redetermination of Mass Fractions of Three Halogens (Cl, Br, I) for Seventeen USGS Geochemical Reference Materials

Determination of 18 Siderophile Elements Including All Platinum Group Elements in Chondritic Metals and Iron Meteorites by Instrumental Neutron Activation

Analysis by nuclear reactions and activation a current bibliography

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