| 标准加入法测定豆奶粉中铁 |
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| 引用本文： | 苏俊烽,程建军,王玉军.标准加入法测定豆奶粉中铁[J].大豆通报,2009(3):49-51. |
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| 作者姓名： | 苏俊烽 程建军 王玉军 |
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| 作者单位： | 苏俊烽,Su Junfeng(东北农业大学食品学院,哈尔滨,150030);程建军,Cheng Jianjun(东北农业大学食品学院,哈尔滨,150030;中国农业大学,北京,100083);王玉军,Wang Yujun(黑龙江广,播电视大学,哈尔滨,150000)
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| 摘 要： | 采用邻二氮菲分光光度法对豆奶粉中铁的测定进行了研究,并对其影响因素进行了分析和探讨.通过单因素实验确定其最佳测量条件为:最大吸收波长510 nm、有色配合物的反应时间 10 min、邻二氮菲溶液添加量2.00 mL、1.0 mol/L NaOH溶液1.50 mL.通过原子吸收分光光度法验证,该方法简单方便、精确度高,可广泛用于豆奶粉中铁的测定.
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| 关 键 词： | 豆奶粉 铁 标准加入法 邻二氮菲 |
Determination of the iron content in soybean powder by standard addition method |
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| Su Junfeng,Cheng Jianjun,Wang Yujun.Determination of the iron content in soybean powder by standard addition method[J].Soybean Bulletin,2009(3):49-51. |
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| Authors: | Su Junfeng Cheng Jianjun Wang Yujun |
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| Abstract: | The iron in soybean powder was determined by 1,10-phenanthroline spectrophotometry,and its influencing factors were studied.Atomic Absorption Spectrometry(AAS) has been adopt to verify the precision of the method in the detection.The results showed that the addition of 1,10-phenanthroline and 1.0 mol/L NaOH was 2.00 mL and 1.50 mL respectively.After the aimed solution was mixed,it was set for 10 min.Then it was measured at 510 nm.This method was simple and convenient and could be widely used in the determin... |
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| Keywords: | Soybean powder Iron Standard addition method 1 10-phenanthroline |
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