在土壤中含有高OCDD度的自然存在的高度化有机化合物
Andrey A Shelepchikov1, Anastasia D Kudryavtseva2, Truong X Nghiem3
1Severtsov Institute of Ecology and Evolution RAS, Leninsky prosp., 33, Moscow, 119071, Russia; The All-Russian State Center for Quality and Standardization of Veterinary Drugs and Feed (FGBU VGNKI), Zvenigorodskoye shosse, Moscow, 123022, Russia.
Chemosphere
|October 17, 2025
概括
在越南土壤中发现了高化合物,这表明自然过程可能会形成八二二二氧化物 (OCDD). 这项研究确定了100多种化合物,为OCDD提供了证据.
科学领域:
- 环境化学环境化学
- 有机地化学 有机地化学
背景情况:
- 在全球范围内经常观察到高水平的八二二氧化 (OCDD).
- 强迫症的确切起源尚不清楚,有多种假设缺乏普遍接受.
研究的目的:
- 调查OCDD污染严重的土壤中其他多化有机化合物的存在和身份.
- 探索OCDD潜在的自然形成途径.
主要方法:
- 使用非目标的高性能液体染色学-高分辨率精确质谱/质谱 (HPLC-HRAM MS/MS) 方法.
- 分析了具有高OCDD污染的越南土壤样本.
主要成果:
- 在七个不同的结构类中检测和识别了100多种高度化化合物.
- 识别出具有与天然抗生素和新型结构相似的分子公式的化合物.
- 观察到一些化合物无处不在,而另一些则特定于强迫症热点.
结论:
- 检测到的化合物的结构多样性和有限的异构性,再加上没有明确的人为前体,指向自然形成过程.
- 这些发现支持了强迫症强迫症生物或其他自然起源的假设.
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