Nozzle for collecting extracted material
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United States of America Patent
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Issued Date -
May 25, 2006
app pub date -
Nov 7, 2005
filing date -
Nov 15, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A nozzle for collecting extracted material for efficiently collecting a solution sprayed, together with gas, from an exit-tube at the outlet of a backpressure control valve in a supercritical fluid chromatograph or a supercritical fluid extraction apparatus. A nozzle 10 is fitted to an end of and is used for collecting in a collection vessel a liquid component in a fluid supplied from the exit-tube. The nozzle 10 comprises a nozzle body 12, an exit-tube hole 18 provided in the nozzle body 10, an opening 14 provided at the lower end of the nozzle body 10, a filter 14 provided above the opening 14 in the nozzle body 10, and an exhaust hole 20 provided in the nozzle body 10 at a position above the filter 16. When the nozzle 10 is fitted, the downstream tip of the exit-tube is inserted through the exit-tube hole 18 and is secured so that the downstream tip of the exit-tube is almost in contact with the filter 14. The fluid discharged from the exit-tube is sprayed into the filter 14. The space enclosed by the filter 14 and the nozzle body 12 above the filter 14 is pressurized due to the gaseous component contained therein, and the liquid component passes through the filter 14 and is discharged from the opening 14.
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