石墨快速消解法结合电感耦合等离子体发射光谱仪测定水泥熟料中多种重金属元素

Determination of Various Heavy Metalsin Cement Clinkerby Craphite Rapid Digestion Combined with Inductively Coupled Plasma Emission Spectrometery

建立了石墨快速消解法结合电感耦合等离子体原子发射光谱仪(ICP-AES)测定水泥熟料中Cr、Mn、Ni、Cu、Zn的定量分析方法。选择267.716 nm、257.610 nm、231.604 nm、324.754 nm、213.856 nm分别作为Cr、Mn、Ni、Cu、Zn的分析谱线,无需进行光谱干扰校正。对水泥熟料实际样品分别采用微波消解法和石墨快速消解法进行消解,并用ICP-AES测定其中重金属含量,发现测试结果一致。精密度实验RSD均小于4%,表明该方法能满足日常对水泥熟料中Cr、Mn、Ni、Cu、Zn的快速检测要求。

A methodfor the determination of various heavy metals in cement clinker by graphite rapid digestion conlbined with inductively coupled plasma emission spectrometery （ICP-AES） is developed. With 267.716 nm, 257.610 nm, 231.604 nm, 324.754 nm, 213.856 mn as the analysis of spectral lines for Cr, Mn, Ni, Cu, Zn without spectral interference correction. The comparision of microwave digestion and graphite rapid digestion on the actual cement clinker sample using ICP-AES determination of heavy metal content is described, and the test results are consistent. The result of precision test indicates that RSD is less than 4 % and can meet the rapid testing requirements of daily analysis ofCr, Mn, Ni, Cu, Zn in cement clinker.