高效液相色谱法测定食品接触材料迁移到7种食品模拟物中的甲醛单体及甲醛总量

• 作 者: 傅英文 宋欢 陈少鸿 李河 王静慧 花锦 奚瑞芳
• 机 构: 山西出入境检验检疫局,宁波出入境检验检疫局,山西大学应用化学研究所,
• 出 处: 分析试验室
• 发表日期: 2013年07期
• 关键词: Food simulants Free formaldehyde Total formaldehyde High performance liquid chro

建立了高效液相色谱法对7种食品模拟物中甲醛单体和甲醛总量的测定方法。方法以甲醛与2.4-二硝基苯肼的衍生产物甲醛-2.4-二硝基苯腙的含量定量,效果良好。7种模拟物中甲醛单体及其总量测定的标准曲线R2均大于0.9917,线性范围为0.05～15.0 mg/L。方法在水性模拟物与油性模拟物中的检出限分别为0.05 mg/L与0.05 mg/kg,回收率和相对标准偏差分别在98.5%～101.3%和0.01%～1.3%之间。

A method for the determination of total formaldehyde and formaldehyde in seven food simulants by high performance liquid chromatography was established. Methods Formaldehyde and 2,4-dinitrophenylhydrazine derivative of formalin-2.4-dinitrophenylhydrazone quantitative, with good results. The standard curve R2 of formaldehyde monomer and its total amount in 7 simulants was greater than 0.9917 with a linear range of 0.05-15.0 mg / L. The detection limits were 0.05 mg / L and 0.05 mg / kg in aqueous simulants and oily simulants, respectively. The recoveries and relative standard deviations were between 98.5% and 101.3% and between 0.01% and 1.3%, respectively.