Patent ID: 7157056
Filing Date: 2007-01-02
Classification: B01L,G01N,Y10T

Abstract:
1. A sample introduction apparatus comprising: a sample chamber having an inlet aperture; a container, having an outlet disposed in fluid communicating relation with said inlet aperture of the sample chamber; a probe of substantially tubular construction, adapted to extend through the inlet aperture and through the outlet into the container; said probe having a second end adapted for connection to a supply of material; said probe being configured to inject a predetermined volume of the material into the container under sufficient positive pressure to displace a predetermined volume of a sample from the container into the sample chamber; and said probe being sized and shaped to provide clearance between said probe and each of the inlet aperture and outlet sufficient to enable said predetermined volume of the sample to be displaced from the container into the sample chamber therethrough; wherein interior probe surfaces remain free of the sample.