粒度对X射线荧光光谱法测定小麦(粉)中镉含量的影响
Effect of particle size on determination of cadmium content in wheat(flour)by X-ray fluorescence spectrometry
尹豪 1尹成华 2路辉丽 3李敏 4耿丽娜5
作者信息
- 1. 河南省粮食科学研究所有限公司,河南 郑州 450004
- 2. 河南省计量标准和产品质量检验检测中心,河南 郑州 450000
- 3. 河南省食品和盐业检验技术研究院,河南 郑州 450003
- 4. 郑州市产品质量检验检测中心,河南 郑州 450003
- 5. 开封市军粮供应中心,河南 开封 475000
- 折叠
摘要
为了探究小麦(粉)样品粉碎粒度对X射线荧光光谱法测定小麦(粉)中镉含量的影响,将两个不同梯度镉含量的小麦天然阳性样品,分别粉碎制成能够通过网筛孔径为 0.20、0.25、0.50、1.00、1.50 mm的不同颗粒粒度小麦粉,测试 5 种颗粒状态的小麦粉及原粮中镉含量.结果表明,样品的粉碎粒度对检测结果稳定性有显著影响.采用不同X射线荧光光谱仪检测小麦(粉)镉含量,建议选择通过孔径不大于 0.50 mm筛孔的小麦粉作为测试样品,其测定结果具有较好的稳定性和精密度.
Abstract
In order to explore the effect of grain size of wheat(powder)samples on the determination of cadmium content in wheat(flour)by X-ray fluorescence spectrometry,two naturally positive wheat samples with different gradients of cadmium content,Different grain sizes of wheat flour with mesh sizes of 0.20,0.25,0.50,1.00 and 1.50 mm were crushed,and the cadmium content of wheat(flour)in 5 grain states and raw grains was measured.The re-sults indicated that the particle size of the sample has a significant influence on the stability of the test results.Dif-ferent X-ray fluorescence spectrometers were used to detect cadmium content in wheat(flour).It was suggested to select wheat flour with mesh size less than 0.50 mm as the test sample,and the determination results had good stability and precision.
关键词
X射线荧光光谱法/镉/小麦/粒度Key words
X-ray fluorescence spectrometry/cadmium/wheat/particle size引用本文复制引用
出版年
2024
NETL
NSTL
万方数据