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建立了电感耦合等离子体-原子发射光谱法(ICP-AES),可同时测定玩具中17种元素(铝、锑、砷、钡、硼、镉、铬、钴、铜、铅、锰、汞、镍、硒、锶、锡和锌)迁移量。砷、镉、铬、钴、铅、镍和硒的线性范围在0.01—10.0mg·L~(-1),铝、钡、铜、锰、锶、锌、锑、锡和硼的线性范围在0.1—20.0mg·L~(-1),汞的线性范围在0.01—1.0mg·L~(-1),仪器检出限(3s)在0.0003—0.03mg·L~(-1)之间。方法用于玩具中17种元素特定迁移量分析,方法定量限在0.2—5mg·kg~(-1)之间,回收率在88.4%—114.0%之间。重复性测定相对标准偏差(n=6)在0.08%—3.97%之间。方法快速,简单,可靠性高,可多元素同时测定,适用于欧盟玩具安全新指令检测要求。
Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) has been established to simultaneously detect 17 elements (aluminum, antimony, arsenic, barium, boron, cadmium, chromium, cobalt, copper, lead, manganese, Nickel, selenium, strontium, tin and zinc). The linear ranges of arsenic, cadmium, chromium, cobalt, lead, nickel and selenium ranged from 0.01 to 10.0 mg · L -1. The linear ranges of aluminum, barium, copper, manganese, strontium, zinc, The linear range of mercury was 0.01-1.0 mg · L -1 and the limit of detection (3s) was between 0.0003-0.03 mg · L -1 . The method was applied to the specific migration analysis of 17 kinds of elements in toys. The limit of quantification was between 0.2-5mg · kg -1 and the recovery was between 88.4% -114.0%. The relative standard deviation (n = 6) of repeatability was between 0.08% and 3.97%. The method is fast, simple and reliable, and can be determined simultaneously with multiple elements. It is suitable for the requirements of the new EU toy safety inspection directive.