食品检验中测定质控样糙米粉无机砷含量的不确定度评定  

Uncertainty evaluation for determination of inorganic arsenic content in quality control samples of brown rice flour in food inspection

作　　者：刘慧敏 章丽丽 陈雪琪 Liu Huimin;Zhang Lili;Chen Xueqi(Jiangsu Chengxin Inspection and Testing Certification Co.,LTD,Jiangyin 214434,China)

机构地区：[1]江苏澄信检验检测认证股份有限公司,江阴214434

出　　处：《塑料包装》2023年第6期46-50,85,共6页Plastics Packaging

摘　　要：通过液相色谱-原子荧光光谱联用仪对质控样糙米粉中的无机砷进行测定,并对其测量不确定性进行评定。结果显示糙米粉中无机砷的含量为0.15 mg/kg,其扩展不确定度为0.014 mg/kg;证书提供的标准值区间为0.12~0.18 mg/kg,测定结果在标准值区间内。Inorganic arsenic in quality control samples of brown rice flour was measured using liquid chromatography-atomic fluorescence spectrometry,and the measurement uncertainty was assessed.The results indicated that the inorganic arsenic content in the brown rice flour was 0.15 mg/kg,with an extended uncertainty of 0.014 mg/kg.The certified standard value range was 0.12~0.18 mg/kg,and the determined result fell within this standard range.

关 键 词：液相色谱-原子荧光光谱联用仪 糙米 无机砷含量 不确定度 

分 类 号：TS207.3[轻工技术与工程—食品科学]