银餐具中银迁移量的影响因素研究  

Research on the influence factors of silver migration in silver tableware

作　　者：那勃[1] 刘琳 孟建华[1] NA Bo;LIU Lin;MENG Jian-hua(National Testing Center for Gold and Silver Jewelry(Tianjin),Tianjin Product Quality Inspection Technology Research Institute,Tianjin 300384,China;Postal Savings Bank of China,Beijing 100808)

机构地区：[1]天津市产品质量监督检测技术研究院国家金银饰品质量检验检测中心(天津),天津300384 [2]中国邮政储蓄银行股份有限公司,北京100808

出　　处：《贵金属》2021年第4期61-65,共5页Precious Metals

基　　金：天津市市场监管委科技计划项目(2020-W18)。

摘　　要：根据银餐具的预期使用方式,选取不同食品模拟物及实验条件,用电感耦合等离子体发射光谱法(ICP-AES)对银内胆水杯中银迁移量进行测试。测试结果表明,银迁移量主要受浸泡时间、温度和酸度影响。在长时间浸泡、较高温度、酸性或茶水实验条件下,银内胆水杯中均可迁移出较多银离子,超过饮用水国家标准中对银离子限量(0.05 mg/L)的规定,在餐具安全评价中应予重视。Different food simulants and experimental conditions were selected to test the silver migration in the silver tank water cup by inductively coupled plasma atomic emission spectrometry(ICP-AES)according to the expected use of silver tableware.The results showed that the amount of silver migration was mainly affected by soaking time,temperature and acidity,respectively.However,under the conditions of long-time immersion,higher temperature,acidic or tea experimental conditions,more silver ions could be migrated from the silver tank water cup,which were beyond the limit of silver ions(0.05 mg/L)in drinking water specified in the national standard.Attention should be paid to the safety of silver tableware.

关 键 词：分析化学 食品安全 银餐具 银迁移量 电感耦合等离子体发射光谱法(ICP-AES) 

分 类 号：O657.31[理学—分析化学]