Characteristic fingerprint spectrum evaluation method for low toxicity risk of 30 # hard asphalt smoke and application of characteristic fingerprint spectrum evaluation method
By constructing a total ion chromatogram characteristic fingerprint of 30# hard asphalt fume, its unique low-toxicity characteristic components were identified, which solved the shortcomings of the existing technology in evaluating 30# hard asphalt fume, and achieved accurate low-toxicity risk assessment and simple risk determination.
Patent Information
- Application Number
- CN202610663749.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-14
- Publication Date
- 2026-06-23
AI Technical Summary
Existing technologies lack a systematic evaluation of 30# hard asphalt when assessing the health risks of asphalt fumes, thus failing to accurately reflect its low toxicity characteristics. Furthermore, existing methods cannot distinguish the differences between different toxic components, leading to inaccurate evaluation results.
A total ion chromatogram characteristic fingerprint of 30# hard asphalt fume was constructed to identify five characteristic peaks (5-hydroxypentanal acetate, alanine, 2,7-dimethyl-1-octanol, acetone, and 3-ethyl-2-methylheptane). A low-toxicity risk assessment benchmark was established by gas chromatography-mass spectrometry analysis to determine the health risk level.
The low toxicity risk assessment of 30# hard asphalt fume was achieved, providing intuitive assessment results, avoiding the subjectivity of weight assignment, simplifying the assessment process, and facilitating engineering applications.