| 能量色散X射线荧光光谱法快速检测配方乳粉中的铁和锌 |
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| 引用本文： | 陈锡,吴建欣,王宗义,严国富,刘明博,廖学亮,赵修平,高婧怡.能量色散X射线荧光光谱法快速检测配方乳粉中的铁和锌[J].中国乳业,2022,0(8):60-64. |
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| 作者姓名： | 陈锡 吴建欣 王宗义 严国富 刘明博 廖学亮 赵修平 高婧怡 |
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| 作者单位： | 1 北京农学院食品科学与工程学院/食品质量与安全北京实验室/农产品有害微生物及农残安全检测与控制北京市重点实验室,北京 102206;2 北京雷力平衡农业发展有限公司,北京 101407;3 钢研纳克检测技术股份有限公司,北京 100081 |
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| 基金项目： | 北京市科技创新券（2021）资助项目 |
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| 摘 要： | 目的]建立能量色散X射线荧光（ED-XRF）光谱快速检测配方乳粉中铁和锌的新方法。方法]乳粉样品用70~100 °C去离子水调成浆状,经ED-XFR扫描,标准加入法进行定量。结果]在考察的浓度范围内,方法线性良好,R2>0.999,铁、锌的定量下限分别为5.90 mg/kg和3.43 mg/kg,加标回收率分别为98.88%~102.7%和99.66%~102.9%,相对标准偏差分别0.38%~1.12%和0.22%~0.75%。结论]该方法样品处理简单,定量快速、准确,为使用ED-XRF光谱技术进行配方乳粉的质量控制与监测提供了有价值的借鉴。
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| 关 键 词： | 铁 锌 能量色散X射线荧光 快速检测 |
Rapid Determination of Iron and Zinc in Formula Milk Powder by Energy Dispersive X-ray Fluorescence Spectrometry |
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| CHEN Xi,WU Jianxin,WANG Zongyi,YAN Guofu,LIU Mingbo,LIAO Xueliang,ZHAO Xiuping,GAO Jingyi.Rapid Determination of Iron and Zinc in Formula Milk Powder by Energy Dispersive X-ray Fluorescence Spectrometry[J].China Dairy,2022,0(8):60-64. |
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| Authors: | CHEN Xi WU Jianxin WANG Zongyi YAN Guofu LIU Mingbo LIAO Xueliang ZHAO Xiuping GAO Jingyi |
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| Institution: | 1Beijing Laboratory of Food Quality and Safety,Beijing Key Laboratory of Agricultural Product Detection and Control for Spoilage Organisms and Pesticides,College of Food Sciences and Engineering,Beijing University of Agriculture,Beijing 102206;2Beijing Leili Balanced Agricultural Development Co.,LTD.,Beijing 101407;3Steel Yanak Testing Technology Co.,LTD.,Beijing 100081 |
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| Abstract: | Objective：A new method for rapid determination of iron and zinc in formula milk powder by energy dispersive X-ray fluorescence（ED-XRF）spectroscopy was established. Methods：The powder samples were made into slurry with 70~100 ℃ deionized water,scanned by ED-XFR,and quantified by standard addition method.Results：Good linearity of the method was obtained and the correlation coefficient was greater than 0.999,the lower limit of quantification of iron and zinc were 5.90 mg/kg and 3.43 mg/kg,respectively,the recoveries of iron and zinc were 98.88%~102.74% and 99.66%~102.88%,and their relative standard deviations were 0.38%~1.12% and 0.22%~0.75%,respectively. Conclusion：The method is simple,rapid and accurate,and provides valuable reference for quality control and monitoring of formula milk powder by using ED-XRF spectroscopy. |
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| Keywords: | iron zinc energy dispersive x-ray fluorescence rapid detection |
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