正丁醇/丙酸与腐殖酸相互作用的NMR研究

张书怀,马慧,郭朝晖,马敏珺,乔岩,王英雄

Interactions Between n-Butanol/Propionic Acid and Humic Acid Studied by NMR Spectroscopy

Shu-huai ZHANG,Hui MA,Zhao-hui GUO,Min-jun MA,Yan QIAO,Ying-xiong WANG

表2 正丁醇和丙酸质子的τc随HA浓度的变化

Table 2 Changes of τc correlation time values calculated for protons of n-butanol and propionic acid with theconcentration of humic acid

CHA/(mg/mL) τc/ns H-1 H-2 H-3 H-4 H-5 H-6 0 0.13 0.13 0.11 0.18 0.12 0.13 1 0.88 0.89 0.83 0.89 0.76 0.70 3 1.00 0.94 0.96 0.96 0.85 0.74 5 1.02 1.00 0.96 0.99 0.85 0.77 10 1.08 1.00 0.96 1.00 0.91 0.81 15 1.19 1.00 0.96 1.00 1.04 0.88 20 1.32 1.00 1.00 1.32 1.10 1.00 25 1.32 1.00 1.00 1.32 1.17 1.00 30 1.32 1.00 1.00 1.32 1.18 1.00