摘要
对X射线荧光光谱仪测定稻谷中的镉含量进行了适用性验证。依据GB 5009.15-2014《食品安全国家标准食品中镉的测定》和LS/T 6115-2016《粮油检验稻谷中镉含量快速测定X射线荧光光谱法》,利用实验室的2台X射线荧光光谱仪对不同镉含量的稻谷进行定量测定,测定结果与仲裁法进行比较和分析,验证仪器在准确性、重复性、稳定性和台间差等方面的适用性。结果表明:利用X射线荧光光谱仪测定稻谷中镉含量时,其准确性、重复性、稳定性和台间差均能达到标准规定的要求,适用于进行稻谷中镉含量的定量测定。
The applicability of the X-ray fluorescence spectrometer for determination of cadmium in paddy was verified.According to GB 5009. 15-2014 "National standard for food safety—Determination of cadmium in food"and LS/T 6115-2016 "Inspection of grain and oils—Rapid determination of cadmium in rice—X-ray fluorescence spectrometry",two X-ray fluorescence spectrometers were used for quantitative determination of cadmium in paddy,and the results were analyzed and compared with the arbitration method,in order to verify the applicability of the instruments in terms of accuracy,repeatability,stability and inter instrument agreement. The results show that the accuracy,repeatability,stability and inter instrument agreement of X-ray fluorescence spectrometers for determination of cadmium in paddy can meet the standard requirements. Therefore,the instruments are suitable for quantitative determination of cadmium in paddy.
作者
赵美凤
邵亮亮
杜京霖
宁晖
房芳
骆倩
袁向星
Zhao Meifeng;Shao Liangliang;Du Jinglin;Ning Hui;Fang Fang;Luo Qian;Yuan Xiangxing(Grain and Oil Products Quality Inspection Center of Zhejiang Province 310012)
出处
《粮食储藏》
2018年第4期31-36,共6页
Grain Storage
关键词
X射线荧光光谱仪
稻谷
镉
适用性
X-ray fluorescence spectrometer
paddy
Cadmium
applicability
