萃取液提取方式对日用陶瓷铅、镉溶出量测定的影响及防控  

The Impact and Control of Extraction Method on Testing Lead and Cadmium Dissolution of Domestic Ceramics

作　　者：李文杰 李丽华 李梅 鲁学军 LI Wenjie;LI Lihua;LI Mei;LU Xuejun(Integrated Technology and Service Centerof Tangshan Customs,Tangshan 063000,Hebei,China)

机构地区：[1]唐山海关综合技术服务中心

出　　处：《陶瓷学报》2019年第5期686-692,共7页Journal of Ceramics

基　　金：国家质检总局2017年度科技计划项目(2017IK286)

摘　　要：概述了日用陶瓷铅、镉溶出量测定的基本原理,探索了陶瓷釉面重金属元素在醋酸萃取液中的迁移方式及影响因素,研究了同一花面、不同规格及同一规格、不同花面的8组骨质瓷杯类样品在不同萃取液提取方式条件下,未经搅拌的各层样液及混合样液铅、镉溶出量测定结果之间的差异程度;并从萃取液中重金属元素机械迁移特征和流体力学原理的角度分析差异形成原因,推导在置信度为95%的条件下,对于口沿或底部加彩、不同规格的骨质瓷杯类样品是否需要采取相应混匀措施的结论。This paper summarized the lead and cadmium dissolving-out amount measurement principle of domestic ceramics,analyzed the migration methods and influencing factors of heavy metal elements with ceramic glaze in acetic acid extract solution,and studied the difference between lead and cadmium dissolving-out amount measurement results of the different liquid layer without stirringand the mixed fluid in the same samples of 8 groups of bone china cup samples which consist of 48 samples with the same surface decoration and different specifications and other 48 samples with different surface decoration and same specifications.On the basis of the mechanical characteristicsofheavy metal elements inextract solutions and the fluid mechanics principle,this paper analyzed the reasons of the above differences.It is derived that the need to take appropriate blending measures for bone china cup samples of different specifications and with surface decoration around the mouth or onthe inside bottomunder the condition of confidence level of 95%.

关 键 词：日用陶瓷 铅、镉溶出量 提取方式 火焰原子吸收光谱法 

分 类 号：TQ174.73[化学工程—陶瓷工业]