Patent ID: 6779379
Filing Date: 2004-08-24
Classification: G01N

Abstract:
A device for vaporization injection of samples into a gas chromatography analysis instrument, comprising an elongated vaporization chamber having a lower portion that is constantly heated and having an upper portion, a syringe equipped with a needle that is arranged to inject a sample liquid through a tip of the needle to be released in a form of a liquid band into the upper portion where the released infected sample is maintained in the form of the liquid band, the device being configured to render vaporization of the sample liquid within the needle negligible, and further containing means for stopping and vaporizing the released sample liquid within the lower portion of the vaporization camber and above a column entrance, characterized in that a distance between the tip of the needle and the means for stopping and vaporizing the sample liquid above the column entrance is greater than 55 mm.