Characterization of Inorganic Elements in Buckwheat, Oat and Rye Bran by Inductively Coupled Plasma-
Optical Emission Spectrometry

doi:10.7506/spkx1002-6630-201704028

Abstract

Abstract: An analytical method for determining K, Ca, Mg, P, Na, Al, B, Fe, Mn, Zn, Cu, Sr, Mo and Ba in buckwheat bran, oat bran and rye bran by inductively coupled plasma-optical emission spectrometry (ICP-OES) after microwave digestion with HNO3/H2O2 mixture was established. The optimal conditions of ICP-OES were obtained by optimizing the operating parameters and selecting the suitable detection wavelengths for analytes. The elimination of spectral interferences from coexisting elements was also investigated in detail. The results showed that the detection limits (LODs) of the method were in the range of 0.26–52.66 μg/L. The correlation coefficients of the calibration curves were in the range of 0.999 5–0.999 9. As validated by the analysis of wheat reference material (GBW10011), the method had high precision and good accuracy. Wheat bran contained large amounts of beneficial inorganic elements.

Key words: wheat bran, inductively coupled plasma-optical emission spectrometry, microwave digestion, spectral interferences, inorganic elements

CLC Number:

O657.63

ZHANG Ping, XIE Hualin. Characterization of Inorganic Elements in Buckwheat, Oat and Rye Bran by Inductively Coupled Plasma- Optical Emission Spectrometry[J]. FOOD SCIENCE, 2017, 38(4): 177-180.

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Characterization of Inorganic Elements in Buckwheat, Oat and Rye Bran by Inductively Coupled Plasma- Optical Emission Spectrometry

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