光谱学与光谱分析 |
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Determination of Nutrition Elements in Yak Milk Powder by Atomic Absorption Spectrometry |
SHI Yan1,ZHENG Wei-wan1,XIAO Wei-wei2,SONG Jian-jun1,LI Xiao-dan1 |
1. Key Laboratory of Food Science of MOE, Nanchang 330047, China 2. Chemistry Industry Institute of Jiangxi, Nanchang 330029, China |
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Abstract In the present paper, orthogonal design test was planed by changing cinefaction temperature, cinefaction time, and the concentration of hydrochloric acid. Yak milk powder and milk powder were digested by dry method. The contents of elements Ca, Mg, Fe, Cu, Zn, Mn, K and Na were determined by flame atomic absorption spectrometry. The best conditions for the digestion were obtained as follows: the temperature was 510 ℃, cinefaction time 4 hours, and hydrochloric acid concentration 1∶5. Meanwhile, under the best experimental conditions, the recovery ratio of the method in the range of 95.2%-107.3%, and the relative standard deviations were 0.38%-3.86% (n=6). The experimental results proved that Yak milk powder is valuable and nutritious food, and has rich nutrition elements.
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Received: 2006-05-10
Accepted: 2006-08-20
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Corresponding Authors:
SHI Yan
E-mail: kwei@ncu.edu.cn
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Cite this article: |
SHI Yan,ZHENG Wei-wan,XIAO Wei-wei, et al. Determination of Nutrition Elements in Yak Milk Powder by Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(12): 2588-2590.
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URL: |
https://www.gpxygpfx.com/EN/Y2007/V27/I12/2588 |
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