Method for measuring or identifying a component of interest in a biological system
First Claim
1. A method for measuring or identifying a small molecule component of interest in a biological system, the method comprising:
- positioning a fibre within the biological system, the fibre being at least partially coated with a polymeric extraction phase for adsorbing the small molecule component of interest from the biological system, the extraction phase being positioned within the biological system;
adsorbing the small molecule component of interest onto the extraction phase;
removing the fibre from the biological system;
inserting the fibre into a nanospray needle;
flowing solvent through the nanospray needle that has the fibre inserted therein;
desorbing the small molecule component of interest from the extraction phase into the solvent flowing through the nanospray needle;
nebulizing and electrospraying the desorbed small molecule component of interest in a solvent plume in the presence of an ionization source at atmospheric pressure to spray aerosolized ionized droplets out of the nanospray needle that has the fibre inserted therein and into an analytical instrument for measurement or identification; and
measuring or identifying the small molecule component of interest present in the aerosolized ionized droplets in said analytical instrument.
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Accused Products
Abstract
A method for measuring or identifying a component of interest in a biological system is disclosed herein. The method includes positioning a fiber within the biological system, the fiber being at least partially coated with a polymeric extraction phase for adsorbing the component of interest from the biological system, the extraction phase being positioned within the biological system; adsorbing the component of interest onto the extraction phase; removing the fiber from the biological system; inserting the fiber into a nanospray needle; flowing solvent through the nanospray needle; desorbing the component of interest from the extraction phase into the solvent; and nanospraying the desorbed component of interest into an analytical instrument for measurement or identification.
72 Citations
16 Claims
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1. A method for measuring or identifying a small molecule component of interest in a biological system, the method comprising:
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positioning a fibre within the biological system, the fibre being at least partially coated with a polymeric extraction phase for adsorbing the small molecule component of interest from the biological system, the extraction phase being positioned within the biological system; adsorbing the small molecule component of interest onto the extraction phase; removing the fibre from the biological system; inserting the fibre into a nanospray needle; flowing solvent through the nanospray needle that has the fibre inserted therein; desorbing the small molecule component of interest from the extraction phase into the solvent flowing through the nanospray needle; nebulizing and electrospraying the desorbed small molecule component of interest in a solvent plume in the presence of an ionization source at atmospheric pressure to spray aerosolized ionized droplets out of the nanospray needle that has the fibre inserted therein and into an analytical instrument for measurement or identification; and
measuring or identifying the small molecule component of interest present in the aerosolized ionized droplets in said analytical instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification