Analysis of cadmium in food by multiple prompt γ-ray spectroscopy

被引：12

作者：

Toh, Y ^{[1
]}

Oshima, M ^{[1
]}

Koizumi, M ^{[1
]}

Osa, A ^{[1
]}

Kimura, A ^{[1
]}

Goto, J ^{[1
]}

Hatsukawa, Y ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Nucl Sci & Energy Directorate, Ibaraki, Tokai 3191195, Japan

来源：

APPLIED RADIATION AND ISOTOPES | 2006年 / 64卷 / 07期

关键词：

prompt gamma-ray analysis; Cd; rice; gamma-ray spectroscopy;

D O I：

10.1016/j.apradiso.2006.02.087

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Cd concentration in food is a public concern related to the human health. In order to remove Cd-polluted food, the development and validation of a rapid and sensitive method of Cd analysis is required. By applying the multiple gamma-ray detection method to prompt gamma-ray analysis (PGA). the influence from nuclei which emit only one prompt gamma-ray at a time at every neutron capture reaction can be reduced. therefore the quantification limit of Cd is improved significantly. The limit of Cd contained in rice in the case of MPGA was evaluated. and under our proposed experimental conditions, it may be possible to quantify Cd content in rice to within 0.2 ppm in 10 min. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：751 / 754

页数：4

共 13 条

[1] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[2]

Chrien R. E., 1984, Neutron radiative capture, P187

[3]

*CODEX, 2003, 35 SESS CODEX COMM F

[4]

*CODEX, 2004, 36 SESS CODEX COMM F

[5]

*CODEX, 2005, 37 SESS CODEX COMM F

[6]

*FAO UN NAT, 2005, FAOSTAT DAT

[7]

Firestone R. B., 1997, Table of Isotopes

[8] Application of multiparameter coincidence spectrometry using a Ge detectors array to neutron activation analysis [J].

Hatsukawa, Y ;

Oshima, M ;

Hayakawa, T ;

Toh, Y ;

Shinohara, N .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 482 (1-2) :328-333

[9]

*JECFA, 1989, TECHN REP SER, V776

[10] Optimization of the multiparameter γ-γ coincidence spectrometry for the determination of iridium in geological materials [J].

Koeberl, C ;

Huber, H .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2000, 244 (03) :655-660

← 1 2 →