| 火焰原子吸收光谱法快速测定豆浆及其原料中的钙 |
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| 引用本文： | 张丛兰,张 美,李 皓,杜 萍,马小建,李 庆,杨 芳. 火焰原子吸收光谱法快速测定豆浆及其原料中的钙[J]. 北京工商大学学报(自然科学版), 2013, 31(4): 23-27 |
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| 作者姓名： | 张丛兰 张 美 李 皓 杜 萍 马小建 李 庆 杨 芳 |
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| 作者单位： | [1]湖北大学知行学院,湖北武汉430011 [2]武汉工程大学绿色化工过程省部共建教育部重点实验室,湖北武汉430073 [3]昆明理工大学分析测试研究中心,云南昆明650093 [4]云南省分析测试中心,云南昆明650093 |
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| 基金项目： | 云南省科技条件平台建设计划项目（2010DH025）; 广东省农业攻关项目（2012B020418003）; 清远市产学研合作项目（2011D021113007） |
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| 摘 要： | 摘要：用火焰原子吸收光谱法测定豆浆及其原料中的钙.通过单因素实验，优化了样品的稀释比例和消化酸用量.研究了氧化钢溶液对豆浆中钙测定的影响.结果表明，优化的豆浆与水稀释体积比为1：3;10 mL稀释后豆浆和豆粉样品的消化酸用量分别为30 mL和35 mL;在豆浆加工中，钙的损失率为10.4%;加氧化钢后检测灵敏度达到0. 136μg/ （ mL·% ），检出限低至0.01 μg/mL,回收率为98.1 % .
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| 关 键 词： | 豆浆 氧化钢 钙 火焰原子吸收光谱法 |
Fast Determination of Calcium in Soybean Milk and Its Material by Flame Atomic Absorption Spectrometry |
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| ZHANG Cong-lan,ZHANG Mei,LI Hao,DU Ping,A Xiao-jian,LI Qing and YANG Fang. Fast Determination of Calcium in Soybean Milk and Its Material by Flame Atomic Absorption Spectrometry[J]. Journal of Beijing Technology and Business University:Natural Science Edition, 2013, 31(4): 23-27 |
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| Authors: | ZHANG Cong-lan ZHANG Mei LI Hao DU Ping A Xiao-jian LI Qing YANG Fang |
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| Affiliation: | 1. Zhixing College of Hubei University, Wuhan 430011, China ; 2. Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute Technology, Wuhan 430073, China ; 3. Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China ; 4. Analytic and Testing Research Center of Yunnan, Kunming 650093, China) |
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| Abstract: | Abstract： The calcium concentrations in soybean milk and its material were determined by flame atomic absorption spectrometry （ FAAS）. The optimal dilution ratio of soybean milk and the amount of digestion acid were discussed by single-factor experiments. Effect of Lanthanum oxide solution on the determination of calcium in soybean milk was also studied. The results showed that the optimizing dilution ratio of soybean milk was 1 ： 3 ; the digestion acid consumption of soybean milk and soybean meal was 30 mL and 35 mL, respectively. The addition of lanthanum oxide resulted in the better sensitivity （0. 136 μg/（mL·% ） ）, lower detection limits（0.01 μg/mL）, and higher recovery（98. 1% ）. The calcium concentration decreased 10.4% in the soybean milk processing. |
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| Keywords: | soybean milk lanthanum oxide calcium flame atomic absorption spectrometry |
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