Shanxi Border Inspection and Quarantine Bureau, Taiyuan 030024, China.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2011 Dec;28(12):1758-62. doi: 10.1080/19440049.2011.603705. Epub 2011 Oct 10.
An analytical method for the determination of silver in food simulants (3% (w/v) aqueous acetic acid or 95% (v/v) aqueous ethanol) was developed based on inductively coupled plasma mass spectrometry (ICP-MS). Recoveries ranged from 87% to 109% and RSDs ranged from 0.7% to 7.8%. The procedure was applied to determine the migration of silver from nanosilver-polyethylene food packaging film into food simulants at different temperatures and migration times. Results indicated that the maximum migration ratios were 1.70%, 3.00% and 5.60% for 3% (w/v) aqueous acetic acid at 20, 40 and 70 °C, respectively, while for 95% (v/v) aqueous ethanol the maximum migration ratios were 0.24%, 0.23% and 0.22% at 20, 40 and 70 °C.
建立了一种基于电感耦合等离子体质谱法（ICP-MS）测定食品模拟物（3%（w/v）乙酸水溶液或 95%（v/v）乙醇水溶液）中银的分析方法。回收率在 87%至 109%之间，RSD 在 0.7%至 7.8%之间。该方法应用于不同温度和迁移时间下纳米银-聚乙烯食品包装薄膜中银向食品模拟物的迁移。结果表明，3%（w/v）乙酸水溶液在 20、40 和 70°C 时的最大迁移比分别为 1.70%、3.00%和 5.60%，而 95%（v/v）乙醇水溶液在 20、40 和 70°C 时的最大迁移比分别为 0.24%、0.23%和 0.22%。
