Patent ID: 7178414
Filing Date: 2007-02-20
Classification: G01N

Abstract:
1. A method of automatically performing liquid microextraction analysis on a plurality of samples in separate vials comprising the steps of: controlling movement of a syringe in multiple axes; cleaning the syringe; drawing a carrier solvent into the syringe; moving the syringe to a sample vial; inserting a tip of the syringe into the sample vial; activating a syringe plunger to expel and hold a microdrop of the solvent on the tip of the syringe; holding the microdrop on the tip of the syringe in the sample vial for a period of time to collect the sample material in a space above the sample in the vial; drawing the microdrop and the collected portion of the sample into the syringe; withdrawing the syringe from the sample vial; moving the syringe to an instrument injector; injecting the sample into the instrument injector for analysis of the sample; and repeating the prior steps on each of the plurality of samples.