Patent ID: 9739692
Date: 2017-08-22
CPC Classifications: B01D,B01L,G01N

Claim:
1. An apparatus for extracting organic analytes from a sample, said apparatus comprising, (a) a compressed gas source, (b) first valving, (c) a first conduit connecting said compressed gas source with said first valving, (d) a sample extraction cell having an inlet and an outlet, (e) a second conduit connecting said first valving and said sample extraction cell inlet, said first valving having a first position blocking flow from said compressed gas source to said sample extraction cell inlet and a second position permitting fluid flow from said compressed gas source to said sample extraction cell inlet, (f) a pressure regulator having an inlet and an outlet, (g) a third conduit connecting said sample extraction cell outlet and said pressure regulator, said pressure regulator blocking fluid flow when the pressure at said pressure regulator inlet is below a predetermined pressure and permitting fluid flow when said pressure at said pressure regulator inlet is above said predetermined pressure, and (h) a heater operatively associated with said sample extraction cell, wherein said apparatus does not include another conduit that i) provides fluid communication between a source of liquid solvent and the sample extraction cell and ii) is fluidically coupled to a mechanical pump; and wherein said apparatus does not include another conduit that i) provides fluid communication between a source of liquid solvent and the sample extraction cell and ii) is fluidically connected to any compressed gas source including said first compressed gas source.