应用电感耦合等离子体质谱研究黄铁矿焙烧灰渣的标识元素

Study of Symbolic Element in Roasting Slag of Pyrite by Inductively Coupled Plasma Mass Spectrometry

应用ICP-MS研究了黄铁矿干法焙烧灰渣中16种元素与堆存地周围近、远处土层中元素的相关性,以及它们的相似和显著差异元素比。发现在污染的土层中,Tl,Cd,Cs,Cu,Zn,Mn,Pb和Ni都是较易辨识的、与渣灰有相关性或相似比的元素。仅有Tl,Cd,Zn,Ni适合作为元素相似性的判据对象。在渣灰和土壤中,不同组合的Tl,Cs,Co,Mo,Zn,Cr,V,Sr,Sb,Pb,Rb,Mn和Ni的元素比有显著差异,仅有Tl,V,Sb,Cu与表土、心底土不相关元素分析同时吻合。Tl是同时兼具元素相似性和元素差异性的考察对象,建议将Tl作为黄铁矿焙烧灰渣的标识元素,用于扬尘中黄铁矿焙烧灰渣的溯源,及黄铁矿冶炼尘和土壤尘的鉴别。

In the present paper, the correlations between sixteen elements from the dry method roasted dust-slag of pyrite and sixteen elements from the soil layer near and far from the store area were studied by ICP-MS. Similar radio and outstanding dif- ferent radio of the elements between the dust-slag and the soil were studied too. It was discovered that in the pollution soil layer T1, CA, Cs, Cu, Zn, Mn, Pb and Ni were easy to be identified and had similar radio with the elements in the dust-slag. But only T1, CA, Zn and Ni are suitable for criterion of element similar properties. In dust-slag and soil, distinct composition element ra- dios of T1, Cs, Co, Mo, Zn, Cr, V, Sr, Sb, Pb, Rb, Mn and Ni had striking differentiation. Only T1, V, Sb and Cu corresponded to both the uncorrelated elements analysis of surface layer and middle-base layer soil. T1 could be used as an inspection target of similar elements and outstanding different elements between the dust-slag and the soil in the meanwhile. So we snggested that T1 can be used as a symbolic element in the roasting dust-slag of pyrite to find the dust-slag of pyrite in dust-recognition and to differentiate the metallurgy dust of pyrite and soil dust.