[Determination of Pb, Zn, Fe and Cd in the crude zinc produced from the imperial smelting furnace by XRF].

This paper covers the determination of Pb, Zn Fe and Cd in the crude zinc produced from the imperial smelting furnace by XRF. Samples of crude zinc are taken on site and cast into ingots of definite shape. The analysed surface of the sample is polished and analysed directly without chemical treatment. The experience coefficient method is used to calibrate the matrix effect. Standard samples are prepared by artificial simulation. The linear relation coefficient between the concentration and the strength of X-ray is above 0.98. The standard deviation is less than 0.0056. The relative standard deviation is less than 2.41%. The results by XRF are the same as that by chemical analysis method.