Method for collecting analyte and an orifice for reducing pressu

Details Method for collecting analyte and an orifice for reducing pressu Method for collecting analyte and an orifice for reducing pressu

1992-12-21

1995-09-26

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210137, B01D 1104

Patent

active

054531985

ABSTRACT:
An orifice which includes a housing having a low pressure side with a first bore hole and a second bore hole. The low pressure side has a first channel and a second channel in fluidic communication with the first bore hole and the second bore hole, respectively. The housing also has a high pressure side with a third bore hole. The orifice also includes an adapter which has a tip, a fourth bore hole and a third channel in fluidic communication therewith. The third channel has a constant diameter for maintaining an essentially constant pressure thereacross when pressure is applied thereto such that fluid flowing through the third channel does not solidify. The adapter is sealingly received by the third bore hole such that the third channel and the first channel align. Additionally, the housing includes an interface plate disposed in the housing between the third channel and the first channel. The plate sealingly receives the tip of the adapter and allows for flow to exist between the third channel and the first channel through a plate hole. A method for collecting analyte. The method includes the steps of providing analyte obtained from supercritical fluid extraction to a collection trap through a high pressure side of an orifice.

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