塑料科技2025，Vol.53Issue(1)：137-141,5.DOI:10.15925/j.cnki.issn1005-3360.2025.01.025
食品接触用塑料制品中3种典型邻苯二甲酸酯测定的不确定度评定
Uncertainty Evaluation in Determination of Three Typical Phthalates in Plastic Products for Food Contact Use
摘要
Abstract
By evaluating the uncertainty of the determination of three typical phthalates in plastic products used in food contact,the accuracy of inspection and detection data was ensured.According to GB 31604.30-2016,the content of three typical phthalates in the sample was measured and analyzed to determine the sources of uncertainty in the detection results.The uncertainty of the main influencing factors was calculated through mathematical models,and the expanded uncertainty of the detection results of three typical phthalates in plastic products in contact with food was summarized.GB 31604.30-2016 was used to determine the content of three typical phthalates in plastic products.The main influencing factors of uncertainty were the preparation process of standard solutions,fitting of standard curves,and instruments.In the measurement process of three typical phthalate esters,the largest influencing factor was the relative standard uncertainty introduced during the fitting of the calibration curve,with 0.032 5 for DIBP,0.030 3 for DBP,and 0.028 2 for DEHP.The accuracy of inspection and detection data can be ensured by improving the operational ability of experimental personnel,selecting appropriate concentration points of standard working solutions,and performing instrument maintenance.关键词
气相色谱质谱联用法/食品接触用/塑料制品/邻苯二甲酸酯/不确定度Key words
GC-MS/Food contact use/Plastic products/Phthalate ester/Uncertainty分类
化学化工引用本文复制引用
张智力,孔祥坤,孙元浩,许超..食品接触用塑料制品中3种典型邻苯二甲酸酯测定的不确定度评定[J].塑料科技,2025,53(1):137-141,5.基金项目
国家市场监管总局科技计划项目(2022MK073) （2022MK073）
山东省市场监督管理局科研项目(2023MR08) （2023MR08）
