Some Considerations with Regard to the Quality of Results of Analysis of Trace Element Extractable Contents in Soil and Sediment

Abstract Attention is drawn to the necessity to demonstrate accuracy of analytical results in order to make them comparable with results obtained elsewhere in the world. Besides the general aspects of quality management (e.g. within and between laboratories), attention is paid to the pitfalls that may occur in soil and sediment extract analysis. Especially the practical aspects of calibration are being dealth with.