- 作者: Mizuike, Atsushi
- 作者服務機構: Nagoya Univ., Nagoya, Japan
- 中文摘要: Trace element speciation has recently become one of the most important problems in water analysis. Proper combination of preconcentration techniques with instrumental determination methods is essential to speciation analysis, because sensitivity and selectivity of direct determination methods are generally lacking. The present paper describes such preconcentration techniques as filtration, centrifugation, flotation and sorption, which have been developed in the author's laboratory for the speciation of heavy metals in river and pond waters by electron microscopy, X-ray microanalysis and chemical analysis. The application of freeze concentration to the speciation of silica in high-purity waters is also discussed.
- 英文摘要: --
- 中文關鍵字: Trace Element Analysis; Heavy Metal; High-Purity Water; Silica; Preconcentration
- 英文關鍵字: 痕量元素分析;重金屬;高純度水;矽石;二氧化矽;預濃縮