青藏高原典型大陆性冰川表面消融期溶解性有机质演化特征分析
冯琳,徐建中,翟立翔

The evolution characteristics of dissolved organic matter in cryoconite during ablation season on the surface of a typical continental glacier of Tibetan Plateau: a case study at Laohugou Glacier No. 12
Lin FENG,Jianzhong XU,Lixiang ZHAI
表1 傅立叶离子回旋共振质谱(FT-ICR MS)分析得到的常见化合物类型分类47
Table 1 The classification method of compound classes used for categorizing FT-ICR MS molecular formulas47
化合物类型分类标准
脂类O/C≤0.9, 1.5≤H/C≤2.0, N=0
多肽类O/C≤0.9, 1.5≤H/C≤2.0, N>0
糖类0.9≤O/C<1.0, 1.5≤H/C≤2.0
不饱和烃类(低氧碳比)O/C<0.5, H/C<1.5, AImod≤0.5
不饱和烃类(高氧碳比)0.5≤O/C≤0.9, H/C<1.5, AImod≤0.5
芳烃类0.5<AImod<0.67
多环芳烃类AImod≥0.67