| 英文摘要 |
With the rapidly increasing industrial development in the second half of this century, elemental analysis has received more attention and the responsibility for securing high quality standards for quality of life in general. The main driving force in this development is the continuously increasing demand for quantitation with lower detection limits. With the increasing social awareness of the environental pollution problems, risks and hazards connected with soil and sediment, inorganic analytical chemistry on the other hand began to play a major role in risk assessment and environmental control. In this field, elemental analysis is an indispensable requirement in many applications such as pollution studies for water, soil and air. Inductively coupled plasma mass spectrometry (ICP-MS) for elemental analysis has been dominated since its introduction by instruments with quadrupole-filters for mass separation. Although considerably impeded by isobaric ion interferences, ICP-MS with quadrupoles has nevertheless matured to become the most prominent MS technique for element analysis with widespread applications, providing extremely low detection limits in combination with true multi-element capabilities. In order to provide a feasible analytical method for the determination of trace elements in solid environmental samples, suh as soil and sediment, an ICP-MS technique has been verified in this project. Both of spectral and non-spectral interferences were carefully investigated and the applicability of internal standardization method and matrix dilution method proposed illustrated by USEPA Method 6020a were also tested. According to the experimental results, matrix dilution was suggested for overcoming the matrix interference resulting from the complex matrices of soil and sediment samples. The performance of verified method has also been evaluated by analysis of several soil and sediment samples. Accordingly, ICP-MS method is considered as applicable method for the determi
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