采用定性方法快速评估食品容器中银纳米颗粒向食品模拟物中的迁移。
Rapid assessment of silver nanoparticle migration from food containers into food simulants using a qualitative method.
机构信息
Environmental Sciences Institute (ICAM), Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, Avda. Carlos III s/n, 45071 Toledo, Spain.
Faculty of Chemical Sciences and Technologies, Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain.
出版信息
Food Chem. 2021 Nov 1;361:130091. doi: 10.1016/j.foodchem.2021.130091. Epub 2021 May 13.
Migration of silver nanoparticles (AgNPs) from food containers (FCs) has been assessed for the first time using a screening method previously validated. Migration was evaluated using water and 3% acetic acid as food simulants (FSs), from 20 to 70 °C at contact times of 2 h and 10 days. Total and migrated Ag were determined by inductively coupled plasma-mass spectrometry (ICP-MS) in the FCs and FSs, respectively. Then, the screening method was validated, and probability of detection (POD) curves were constructed in both FSs to characterize the response to AgNPs. The results provided by the present screening method showed no release of AgNPs. The FSs in contact with FCs were spiked at levels above, inside and below the unreliability region, with a reliability rate (RLR) of 0.90. Asymmetric flow field flow fractionation coupled to inductively coupled plasma mass-spectrometry (AF4-ICP-MS) was used for confirmative analyses.
首次使用先前经过验证的筛选方法评估了食品容器 (FC) 中银纳米粒子 (AgNPs) 的迁移情况。迁移情况使用水和 3%乙酸作为食品模拟物 (FS)，在 20 至 70°C 的温度下，接触时间为 2 小时和 10 天。在 FC 和 FS 中分别通过电感耦合等离子体质谱法 (ICP-MS) 测定总银和迁移银。然后，对筛选方法进行了验证，并在两种 FS 中构建了检测概率 (POD) 曲线，以表征对 AgNPs 的响应。本筛选方法提供的结果显示没有 AgNPs 的释放。与 FC 接触的 FS 在不可靠区域之上、之内和之下的水平进行了加标，可靠性率 (RLR) 为 0.90。不对称流场流分离与电感耦合等离子体质谱法 (AF4-ICP-MS) 联用进行确认分析。
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