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《化学分析计量》 2020年第03期
DOI:10.3969/j.issn.1008-6145.2020.03.002
乳粉中黄曲霉毒素M1残留标准物质研制
魏敏1,周剑2,柴艳兵1,张耀广1,李飞1,李兴佳1,李会会1,李双1
1.君乐宝乳业集团,农业农村部乳品质量安全控制重点实验室,石家庄 050021; 2.中国农业科学院农业质量标准与检测技术研究所,农业农村部农产品质量安全重点实验室,北京 100081 
Preparation for standard substance of aflatoxin M1 residues in milk powder
WEI Min1, ZHOU Jian2, CHAI Yanbing1, ZHANG Yaoguang1, LI Fei1, LI Xingjia1, LI Huihui1, LI Shuang1
1. Junlebao Dairy Group, Shijiazhuang Key Laboratory of Dairy Quality and Safety Control, Ministry of Agriculture and Villages, Shijiazhuang 050021, China; 2. Key Laboratory of Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs, Institute of Quality Standard and Testing Technology for Agro-Products of CAAS, Beijing 100081, China 
摘要:通过饲喂牛的方式获得乳粉中黄曲霉毒素M1阳性乳品,经冷冻干燥、混匀、包装、分装、辐照灭菌制备了乳粉中黄曲霉毒素M1标准物质。6家实验室均采用液相色谱-同位素稀释质谱法对乳粉中黄曲霉毒素M1标准物质进行联合定值。分别采用F检验和t检验对标准物质进行均匀性、稳定性检验,结果表明该标准物质均匀性与稳定性良好,均符合标准物质定值技术要求。对定值结果进行不确定度评定,乳粉中黄曲霉毒素M1残留标准物质定值结果为(2.45±0.41) μg/kg,k=2。该标准物质可用于乳品中黄曲霉毒素M1的日常质量控制及定量检测。 
Abstract:Aflatoxin M1 positive milk in milk powder was obtained by feeding cattle. Aflatoxin M1 standard substance in milk powder was prepared by freeze-drying, mixing, packaging, packaging and irradiation. The standard value of standard substance of Aflatoxin M1 in milk powder was determined by liquid chromatography-isotope dilution mass spectrometry in six laboratories. The F test and t test were used to test the uniformity and stability of the reference material, respectively. The uniformity and stability of the reference material were good, which met the technical requirements of setting value of standard substances. The uncertainty of the result was evaluated, the value of aflatoxin M1 residue in milk powder was (2.45±0.41) μg/kg, k=2. The standard substance can be used for routine quality control and quantitative detection of aflatoxin M1 in dairy products. 
关键词:液相色谱-同位素稀释质谱法;黄曲霉毒素M1残留标准物质;乳粉;定值;不确定度 
Keywords:liquid chromatography-isotope dilution mass spectrometry; aflatoxin M1 residue standard substance; milk powder; constant value; uncertainty 
基金:国家重点研发计划项目(SQ2018YFC1604302) 
本文引用格式:
魏敏,周剑,柴艳兵,等.乳粉中黄曲霉毒素M1残留标准物质研制[J].化学分析计量,2020,29(3):6-10.
WEI M,ZHOU J,CHAI Y B,et al. Preparation for standard substance of aflatoxin M1 residues in milk powder[J]. Chemical analysis and meterage,2020,29(3):6-10. 

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