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2014•Food ScienceRequires access

Determination of Contents of Cu, Mn, Fe, Zn, Ca, Mg, K and Na in Rice Using Microwave Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry

Ru Ye

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Abstract

A method was established for the determination of copper, manganese, iron, zinc, potassium, sodium, magnesium and calcium in rice by inductively coupled plasma-optical emission spectrometry(ICP-OES) after microwave digestion. The detection limits of the method varied from 0.9 to 12 μg/L, with a linear correlation coefficient(r) ≥ 0.999 65, a relative standard deviation(RSD) 5.0%, and the spike recovery rates were in the range from 96.7% to 104.3%. Wheat reference material was satisfactorily determined by the proposed method. Thus, this method is suitable for the determination of nutrient elements in rice.

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What this paper is about

A method was established for the determination of copper, manganese, iron, zinc, potassium, sodium, magnesium and calcium in rice by inductively coupled plasma-optical emission spectrometry(ICP-OES) after microwave digestion. The detection limits of the method varied from 0.9 to 12 μg/L, with a linear correlation coefficient(r) ≥ 0.999 65, a relative standard deviation(RSD) 5.0%, and the spike recovery rates were in the range from 96.7% to 104.3%. Wheat reference material was satisfactorily determined by the proposed method. Thus, this method is suitable for the determination of nutrient elements in rice.

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Available abstract

A method was established for the determination of copper, manganese, iron, zinc, potassium, sodium, magnesium and calcium in rice by inductively coupled plasma-optical emission spectrometry(ICP-OES) after microwave digestion. The detection limits of the method varied from 0.9 to 12 μg/L, with a linear correlation coefficient(r) ≥ 0.999 65, a relative standard deviation(RSD) 5.0%, and the spike recovery rates were in the range from 96.7% to 104.3%. Wheat reference material was satisfactorily determined by the proposed method. Thus, this method is suitable for the determination of nutrient elements in rice.

Key concepts: Microwave digestion, Inductively coupled plasma, Chemistry, Potassium, Zinc, Manganese, Magnesium, Analytical Chemistry (journal)

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Determination of Contents of Cu, Mn, Fe, Zn, Ca, Mg, K and Na in Rice Using Microwave Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry — Research Paper | ScholarLens