Research and Development > Technical Report > No.9 Special Issue on "Analytical Sciences and Microstructural Characterization″ and "Steel Sheet for Can-making″ > Analysis of Chemical States of Heavy Metals in Environmental Samples Using XFAS

No.9 Special Issue on "Analytical Sciences and Microstructural Characterization″ and "Steel Sheet for Can-making″

Analysis of Chemical States of Heavy Metals in Environmental Samples Using XFAS

FUJIWARA Shigeki     KAWANO Takashi     NAGOSHI Masayasu

Abstract

XAFS X-ray absorption fine structure analysis enables to detect chemical states of trace heavy metals in environment directly without any pre-treatment. It was found that the chemical state of Zn in sewage sludge was ZnS, and it changed to Zn²⁺ under aerobic condition. It was also detected that 18% of As₂S₃ existed in excess activated sludge which contained trace of As. This paper shows the method for chemical states analysis of heavy metals in environmental samples using XAFS.

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