A method and apparatus for preserving soil samples
By creating a negative pressure environment and a double-layer sealing structure inside the soil sample container, the inefficiency and safety hazards of the traditional wax sealing method are solved, achieving efficient and environmentally friendly soil sample preservation and ensuring sample stability and analytical accuracy.
CN119429378BActive Publication Date: 2026-07-21INST OF AGRI RESOURCES & ENVIRONMENT SICHUAN ACAD OF AGRI SCI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF AGRI RESOURCES & ENVIRONMENT SICHUAN ACAD OF AGRI SCI
- Filing Date
- 2025-01-06
- Publication Date
- 2026-07-21
Smart Images
Figure CN119429378B_ABST
Abstract
The application belongs to the technical field of soil sample preservation, and relates to a soil sample preservation method and device, aiming to provide an efficient, reliable and environmentally friendly long-term soil sample preservation solution. The method comprises preheating a sample container, adding a soil sample and quickly closing, and then storing at a low temperature. The whole process is light-avoiding and forms a negative pressure of 0.7-0.9 atm. The device comprises an outer bottle, an inner bottle, a bottle cap, a high-temperature box and a low-temperature box. The application improves the efficiency and reliability of sample preservation by precisely controlling the temperature and negative pressure, reduces environmental pollution and operation risk, and ensures the stability and analysis accuracy of the soil sample. The method and device are easy to operate, reduce the dependence on professional skills, reduce material waste and equipment maintenance cost, and have good economy and practicability.
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