超臨界流体を利用した有機化合物の分離定量技術の高性能化に関する研究

概要

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Separation and quantification methods using supercritical fluids have been developed in terms of separation, detection and hyphenation techniques as well as an application to real sample analyses. For sensitive and selective detection in supercritical fluid chromatography (SFC), an electron-capture detector was used as a detector; small quantities of organochlorine pollutants could be determined. A novel deactivation method of silica-based column packings using supercritical fluid carbon dioxide as a reaction medium was also reported. The effectiveness of this method was higher than that of the classical method using organic solvents. On the other hand, the use of a modifier in supercritical fluid extraction (SFE) of small quantities of triazine herbicides in soil was investigated; the addition of methanol as a modifier increased the recoveries of the herbicides. Regarding the hyphenated system, on-line SFC/GC and SFE/SFC systems were investigated; a type analysis of essential oils and residue analysis of thiolcarbamate herbicides could be rapidly performed using these systems. The results obtained in this study indicate that the proposed methods are useful for the sensitive and rapid determination of organic compounds.
社団法人日本分析化学会の論文
1998-08-05