| 悬浮液进样-火焰原子吸收光谱法测定面粉中的钙和镁 |
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| 引用本文： | 刘立行,张启凯,胡洋.悬浮液进样-火焰原子吸收光谱法测定面粉中的钙和镁[J].光谱学与光谱分析,1999,19(3):424-425. |
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| 作者姓名： | 刘立行 张启凯 胡洋 |
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| 作者单位： | 抚顺石油学院应用化学系,113001,抚顺 |
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| 摘 要： | 将悬浮液进样技术应用于火焰原子吸收光谱法，成功地测定了面粉中的钙，镁。将面粉悬浮于含有邻葳二甲酸二丁酯的琼脂胶体中而制成悬浮液。对悬浮剂的选择及化学干扰的消除进行了考查。
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| 关 键 词： | 悬浮液进样 火焰原子吸收光谱法 面粉 钙 镁 |
Determination of Calcium and Magnesium in Wheat Flour by Suspension Sampling-Flame Atomic Absorption Spectrometry |
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| Lihang LIU,Qikai ZHANG,Yang HU.Determination of Calcium and Magnesium in Wheat Flour by Suspension Sampling-Flame Atomic Absorption Spectrometry[J].Spectroscopy and Spectral Analysis,1999,19(3):424-425. |
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| Authors: | Lihang LIU Qikai ZHANG Yang HU |
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| Institution: | Department of Applied Chemistry, Fushun Petroleum Institute, 113001 Fushun. |
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| Abstract: | Suspension sampling technique was applied to flame atomic absorption spectrometry and was successfully used to determine calcium and magnesium in wheat flour.The wheat flour was suspended in agar sol containing dibutyl phthalate and made into suspension.Choice of suspension agent and elimination of chemical interference were studied.The test solution was injected into air acetylene flame to determine calcium and magnesium by standard addition method.Determination results were consistent with those obtained by ashing method.The t test showed that no difference was found between the two methods.Displacement of ashing method by suspension sampling method for the sample pretreatment is possible.This method is convenient,rapid and accurate. |
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| Keywords: | Suspension sampling Flame atomic absorption spectrometry Wheat flour Calcium Magnesium |
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