Patent ID: 6168955
Filing Date: 2001-01-02
Classification: B01D,G01N,Y10T

Abstract:
Apparatus for monitoring at least one analyte present in a fluid sample, which apparatus comprises: (a) an extraction chamber and an open sample receptacle for containing said fluid sample, said extraction chamber being shaped and dimensioned to define an interior volume for containing a supercritical fluid and said a sample receptacle, wherein the interior volume of the extraction chamber is in fluid communication with the open sample receptacle such that said at least one analyte can be extracted from said fluid sample by supercritical fluid extraction; (b) a removable cover member shaped and dimensioned to permit introduction of said receptacle into said extraction chamber; (c) an analysis cell having a window which is substantially transparent to infra-red radiation and permits infra-red radiation from an external infra-red source to pass through said extracted analyte to means for analyzing said infra-red radiation; and (d) means for permitting communication between the interior volume of said extraction chamber and said analysis cell.