电子烟烟液接触金属材料主要成分及材质剖析  

Analysis of main metallic components and material types of metallic materials in contact with e-liquids found in commercial electronic cigarettes

作　　者：韩书磊[1] 朱风鹏[1] 付亚宁[1] 刘彤[1] 庞永强[1] 崔华鹏[2] 樊美娟[2] 刘绍锋[2] 陈欢[1] HAN Shulei;ZHU Fengpeng;FU Yaning;LIU Tong;PANG Yongqiang;CUI Huapeng;FAN Meijuan;CHEN Huan(China National Tobacco Quality Supervision ＆ Test Centre,Zhengzhou 450001,China;Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China)

机构地区：[1]国家烟草质量监督检验中心 [2]中国烟草总公司郑州烟草研究院

出　　处：《烟草科技》2018年第11期73-78,共6页Tobacco Science & Technology

基　　金：中国烟草总公司重大专项项目"烟草特征性指标分析及其在新型烟草制品鉴别中的应用研究"[110201501007(XX-7)];中国烟草总公司电子烟国家标准专项配套标准项目"电子烟产品关键指标筛选与评价研究"(2018QB203);强制性国家标准计划项目"电子烟"(20171624-Q-456)

摘　　要：为研究电子烟烟液接触金属材料的主要成分及材质,利用硝酸/盐酸体系对样品进行微波消解,并采用全扫描定性分析及半定量分析方法,通过电感耦合等离子体质谱技术(ICP-MS),对15种电子烟样品的44个不同类型金属样品(15个加热丝,8个焊接点,3个连接线及18个储液腔金属材料)中的主要元素进行了测定。结果表明:(1)方法的检出限低于0.2μg/L,相对标准偏差低于6.0%。(2)电子烟加热丝的主要成分是镍和铬,其材质为镍铬合金;加热丝焊接材料的主要成分是铜和锌,其材质为铜锌合金;连接线的主要材质是镍合金;烟液接触金属器具(储液腔等)的主要材质是铜锌合金及锡铬合金等。该方法灵敏度高、重复性好,适用于电子烟金属材料中金属元素的快速测定。In order to determine the main metallic components and material types of metallic materials in contact with e-liquids found in commercial electronic cigarettes, 44 types of metallic materials from 15 e-cigarettes,including 15 filaments,8 welding joints,3 wires and 18 other metallic materials within e-liquid storage cavity, were collected. These materials were digested by nitric acid and hydrochloric acid with microwave before qualitative analysis under full scan model and semi-quantitative analysis by inductively coupled plasma mass spectrometry（ICP-MS）. The results showed that：1）Limit of detection of the method was lower than 0.2 μg/L,and relative standard deviation was lower than 6.0%. 2）All the filaments of e-cigarettes were mainly made of nickel and chromium; filaments and thick wires were joined to each other by mainly copper and zinc soldering; the thick wires were mainly made of nickel alloys. Cu-Zn alloys and Sn-Cr alloys were widely used in components in contact with e-liquids（liquid storage cavity）of e-cigarettes. This method is sensitive with good repeatability and suitable for the rapid determination of metal elements from metallic materials found in electronic cigarettes.

关 键 词：电子烟 烟液 金属材料 电感耦合等离子体质谱法(ICP-MS) 

分 类 号：TS411.1[农业科学—烟草工业]