초록 ▼

Concentration of the solutes contained in a liquid solvent is effected by passing the solvent through a first trapping means that adsorbs them, flushing the first trapping means with supercritical fluid and reducing its solubility parameter in a second trapping means so that the latter can adsorb de

Concentration of the solutes contained in a liquid solvent is effected by passing the solvent through a first trapping means that adsorbs them, flushing the first trapping means with supercritical fluid and reducing its solubility parameter in a second trapping means so that the latter can adsorb desired solutes.

대표청구항 ▼

A method of concentrating solutes contained in a liquid solvent other than supercritical fluid before they are applied to chromatographic apparatus for analysis, the said method comprising: passing the liquid solvent to waste through a first trapping means that adsorbs and accumulates at least some

A method of concentrating solutes contained in a liquid solvent other than supercritical fluid before they are applied to chromatographic apparatus for analysis, the said method comprising: passing the liquid solvent to waste through a first trapping means that adsorbs and accumulates at least some of the solutes from the solvent, passing supercritical fluid through said first trapping means so as to adsorb at least some of the solutes therefrom and carry them into a second trapping means, reducing the solubility parameter of the supercritical fluid in said second trapping means, and permitting the fluid of reduced solubility parameter to escape from said second trapping means, thereby leaving at least some of the solutes in said second trapping means.