一种检测新鲜土壤碳氮元素的方法及装置
By combining segmented combustion detection and three-stage refrigeration, the problems of time-consuming analysis of carbon and nitrogen elements in fresh soil and moisture interference were solved, enabling rapid and accurate soil nutrient detection and supporting agronomic improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF SOIL SCI CHINESE ACAD OF SCI
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for analyzing soil carbon and nitrogen elements are time-consuming and not applicable to fresh soil. They cannot accurately distinguish between organic and inorganic carbon, and traditional elemental analyzers suffer from severe moisture interference when processing fresh soil, failing to meet the needs for rapid on-site testing.
A segmented combustion detection method is adopted, which distinguishes the content of organic carbon, elemental carbon, carbonates, microbial nitrogen, organic nitrogen, and inorganic nitrogen through a three-step method of low-temperature pyrolysis, medium-temperature oxidation and high-temperature combustion. It is combined with a three-stage refrigeration of electronic condenser and a dehalogenator to eliminate the interference of moisture and halogens, and a TCD detector is used for accurate analysis.
It enables rapid and accurate detection of carbon and nitrogen elements in fresh soil, reducing the detection time to 30-40 minutes, improving detection feedback efficiency and accuracy, and providing precise soil nutrient data to support agronomic improvement.
Smart Images
Figure CN120801558B_ABST