Bubble extraction as a preconcentration step in trace elemental analysis: a preliminary study |
| |
| Authors: | G Vallebona G Banchini A Borraccini and G Raspi |
| |
| Institution: | (1) Istituto di Chimica dell'Accademia Navale, I-57100 Livorno, Italy;(2) Dipartimento di Chimica e Chimica industriale dell'Università, I-56100 Pisa, Italy |
| |
| Abstract: | Summary Surface active properties of dithizone and mercury(II) dithizonate have been analyzed by means of a laboratory apparatus for bubble extraction in view of utilizing it as a preconcentration device. Dependence of extraction efficiency on various parameters has been analyzed. Particularly, the dependence on concentration has been discussed in terms of adsorption isotherm and compared with that of a typical surface-active dye (crystal violet). It has been found that quantitative recovery ( 90%) of mercury, as mercury(II) dithizonate, is obtained from solutions of sufficiently low concentration ( 0.3  g/l).
Fraktionierextraktion als Anreicherungsstufe in der Spurenelementanalyse. Eine vorläufige Untersuchung |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
