Purification method of gas purging sample and batch purification method thereof

• Main Authors: YU HAITANG, LI KE, LIU FULIANG, ZHANG LIN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a purification method and batch purification method for gas purging samples, a purification needle comprises a needle body, the top of the needle body is provided with an inlet for purging gas to enter, the needle tip at the bottom of the needle body is provided with an outlet for purging gas to flow out, the center of the needle body is provided with a through cavity, and the through cavity is provided with a through hole. The needle body is provided with an inlet and an outlet, the inlet and the outlet are respectively positioned at two ends of the cavity, the side wall of the needle body is provided with at least one sunken gas groove for tail gas to flow out, the depth of the gas groove is smaller than the thickness of the side wall, and the length of the gas groove in the length direction of the needle body is greater than the length of a sealing gasket on a sample bottle. The purification needle can reduce damage of a sealing gasket of a sample bottle so as to ensure the sealing