CAJ | 학술논문

采用NaOH碱提法提取和纯化了黑土中的胡敏酸(humic acid,HA)用傅里叶变换红外光谱(FTIR)研究了HA与La3+、Ce3+、Cd3+和Y3+4种稀土离子作用前后的光谱特征。结果表明，HA与稀土离子作用后的红外光谱中归属于COO-的1600cm-1、1400cm-1处的振动吸收峰增强，表明腐殖酸与稀土离子之间发生了配合作用。
채용NaOH감제법제취화순화료흑토중적호민산(humic acid,HA)용부리협변환홍외광보(FTIR)연구료HA여La3+、Ce3+、Cd3+화Y3+4충희토리자작용전후적광보특정。결과표명，HA여희토리자작용후적홍외광보중귀속우COO-적1600cm-1、1400cm-1처적진동흡수봉증강，표명부식산여희토리자지간발생료배합작용。
Humic acid (HA) was extracted by NaOH solution from black soil of Heilongjiang in China.Reaction characterization of rare earth elements (La3+,Ce3+,Gd3+and Y3+) with HA was studied by Fourier transform infrared (FTIR) spectroscopy.Results showed that peaks (1600 cm-1 and 1400 cm-1) in FTIR spectra of HA became strength after reaction,implying that carboxyl groups of HA reacted with rare earth elements.