Elemental composition of Brazilian rice grains from different cultivars and origins

被引：12

作者：

Kato, Lilian S. ^{[1
]}

De Nadai Fernandes, Elisabete A. ^{[1
]}

Bacchi, Marcio A. ^{[1
]}

Sarries, Gabriel A. ^{[2
]}

机构：

[1] Univ Sao Paulo, Nucl Energy Ctr Agr CENA, Av Centenario 303, BR-13416000 Piracicaba, SP, Brazil

[2] Univ Sao Paulo, Coll Agr Luiz de Queiroz ESALQ, Av Padua Dias 11, BR-13418000 Piracicaba, SP, Brazil

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2018年 / 318卷 / 01期

关键词：

Toxic elements in rice; Chemical elements; Neutron activation analysis; Arsenic; Cadmium; Oryza sativa; NEUTRON-ACTIVATION ANALYSIS; ARSENIC ACCUMULATION; TRACE-ELEMENTS; HOMOGENEITY; SPECIATION;

D O I：

10.1007/s10967-018-6122-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Neutron activation analysis (NAA) was used for determining chemical elements in rice grains of four different cultivars (IRGA424, IRGA424 RI, Guri Inta, Puita Inta) produced in four geographic regions of Rio Grande do Sul state, Brazil. Considering toxic elements, As varied from 0.027 to 0.646 mg/kg, while Cd was always lower than the detection limit of 0.25 mg/kg. Applying principal component and cluster analysis, As, Br, Co, Cs, Na, Rb and Zn presented potential to be used to distinguish rice grains from different regions, while no discrimination was obtained amongst cultivars.

引用

页码：745 / 751

页数：7

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