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目的:建立电感耦合等离子体质谱(ICP-MS)测定饮水材质内壁涂料中16种元素含量的方法。方法:采用ICP-MS同时测定饮水材质内壁涂料中Al、As、Ba、Zn、Cu、Sb、Cr、Ni、Fe、Mn、Cd、Pb、Ag、Se、Sn、Be等16种元素。结果:实验表明,方法的线性相关系数均>0.999,检出限0.005μg/L～0.288μg/L,加标回收率均在86.5%～118.0%之间,测定质控样品,测定值均在标准值范围内。结论:该方法简便、快速、灵敏、准确,适用于饮水材质内壁涂料中16种金属元素的同时测定。
Objective: To establish a method for the determination of 16 elements in the inner wall paint of drinking water by inductively coupled plasma mass spectrometry (ICP-MS). Methods: Simultaneous determination of 16 elements including Al, As, Ba, Zn, Cu, Sb, Cr, Ni, Fe, Mn, Cd, Pb, Ag, Se, Sn and Be in the coating of drinking water by ICP- Results: The experimental results showed that the linear correlation coefficient of the method was> 0.999, the detection limit was 0.005μg / L ~ 0.288μg / L, the recoveries were between 86.5% ~ 118.0% Within the standard value range. Conclusion: The method is simple, rapid, sensitive and accurate and is suitable for the simultaneous determination of 16 metal elements in water-borne coatings.