Method and apparatus for sample injecting in gas chromatography
AssigneeSaika Technological Institute Foundation
InventorsRyoichi Sasano, Motoaki Satoh, Yutaka Nakanishi
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Abstract
A method and an apparatus for sample injection in gas chromatography increases the injecting volume of a sample, and can analyze any of high-boiling-point compounds, low-compounds boiling-point compounds, and compounds decomposed by heat. A sample is injected into a vaporizing chamber 6 having curved or crooked outer wall 6G and sample path S and formed of continuous inner walls 6H; the sample is temporarily held in the vaporizing chamber 6; then an objective compound is vaporized, and introduced into a separation column 17.
Claims17
A method for sample injection in gas chromatography comprising the steps of:
- providing a vaporizing chamber further comprising (1) continuous inner walls, (2) a curved or crooked sample path, and (3) a liquid-holding chamber shaped to contain a liquid sample by gravity when the vaporizing chamber is upright;
- injecting the sample into the liquid-holding chamber;
- temporarily holding the sample in the liquid-holding chamber provided in said vaporizing chamber;
- vaporizing an objective compound of the liquid sample in the liquid-holding chamber;
- and
- introducing the objective compound into a separation column.
An apparatus for sample injection in gas chromatography comprising a vaporizing chamber, a syringe introducing portion installed above the vaporizing chamber, and a separation column connecting portion installed under said vaporizing chamber;
- wherein said vaporizing chamber has a curved or crooked sample path and is formed with continuous inner walls and comprises holding chamber for temporarily holding the sample in said vaporizing chamber.
Dependencies are inferred from the claim text.