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Composition and estimate of daily mineral intake from samples of Brazilian rice
Microchemical Journal ( IF 4.8 ) Pub Date : 2018-03-01 , DOI: 10.1016/j.microc.2017.10.006
Iago José Santos da Silva , Ana Paula Silveira Paim , Maria José da Silva

Abstract Rice is one of the most produced and consumed cereals in the world, making the control of its chemical composition, especially of minerals, important. A method of rice digestion using nitric acid and hydrogen peroxide to determine metals (Al, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn) using Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) was developed. The optimized conditions were established using a factorial design 23, obtaining the following digestion conditions as the most adequate: digestion time (20 min), concentration of HNO3 (8 mol L− 1) and H2O2 volume (2.5 mL). Recovery values ranging from 80 to 120% with RSD

中文翻译:

巴西大米样品中每日矿物质摄入量的组成和估计

摘要 大米是世界上生产和消费量最大的谷物之一,因此控制其化学成分,尤其是矿物质的含量非常重要。一种使用硝酸和过氧化氢消化大米的方法,使用电感耦合等离子体发射光谱法测定金属(Al、Ca、Cd、Co、Cr、Cu、Fe、K、Mg、Mn、Na、Ni、Pb 和 Zn) (ICP OES) 开发。使用因子设计 23 建立优化条件,获得以下最合适的消化条件:消化时间(20 分钟)、HNO3 浓度(8 mol L− 1)和 H2O2 体积(2.5 mL)。RSD 回收率范围为 80% 至 120%
更新日期:2018-03-01
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