Detection sample tube and chemisorption analyzer

Abstract

The application provides a detection sample tube and a chemisorption analyzer. The detection sample tube comprises a tube body for containing a sample to be detected and a sealing assembly. The sealing assembly comprises a first sealing member sleeved on the tube body and a second sealing member sleeved on the first sealing member. Both the first sealing member and the second sealing member are metal members, and the thermal expansion coefficient of the material of the first sealing member is smaller than that of the material of the second sealing member. By setting the first sealing member and the second sealing member with different thermal expansion coefficients, when the detection sample tube is heated, the second sealing member expands and deforms more than the first sealing member, so that the second sealing member tightly presses the first sealing member, the first sealing member and the second sealing member form a close fit, and self-adaptive sealing is achieved, thereby improving the sealing performance of the sealing assembly and the detection accuracy of the chemisorption analyzer.

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