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食品包装材料与容器涂料中甲醛的示波极谱测定方法的研究
引用本文:张文德,王绍杰,李信荣.食品包装材料与容器涂料中甲醛的示波极谱测定方法的研究[J].分析科学学报,2000,16(2):149-152.
作者姓名:张文德  王绍杰  李信荣
作者单位:河北唐山市卫生防疫站,唐山,063000
基金项目:食品卫生国家标准研制项目
摘    要:在pH5.0的0.02mol/L乙酸-乙酸钠介质中,甲醛与硫酸肼的反应产物在-1.04V处产生一个灵敏的吸附还原波,其峰高(ip)与甲醛浓度在0.01~1.0mg/L范围内呈良好的线性关系。方法操作简便、快速、灵敏、选择性好。用于食品包装材料、容器内壁涂料中游离甲醛的测定,均获得与国标法一致的效果。

关 键 词:示波极谱法  甲醛  食品包装材料  容器内壁涂料
修稿时间:1999-05-25

Determination of Formaldehyde in Food Packaging Material and Container Inner Wall Coating by Oscilloscopic Polarography
ZHANG Wen-de,WANG Shao-jie,LI Xin-rong.Determination of Formaldehyde in Food Packaging Material and Container Inner Wall Coating by Oscilloscopic Polarography[J].Journal of Analytical Science,2000,16(2):149-152.
Authors:ZHANG Wen-de  WANG Shao-jie  LI Xin-rong
Abstract:The polarographic behavior of the reaction product of formaldehyde and diamine sufate on the drop mercury electrode was investigated in a buffer solution of 0.02 mol/L HOAc NaOAc (pH 5.0) and a sensitive reduction wave was obtained at -1.04 V (vs.SCE). Under the optimum conditions, the detection limit and the linear range were 0.01 mg/L and 0.01~1.0 mg/L for the formaldehyde, respectively. The proposed method was simple, rapid, sensitive and selective. This method has been applied to the determination of free formaldehyde in food packaging materials and container inner wall coating with satisfactory results.
Keywords:Oscilloscopic polarography  Formaldehyde  Food packaging material  Container inner wall coating  
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