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本文利用Ｆｏｕｒｉｅｒ变换红外光谱 （ＦＴＩＲ）、放射性同位素示踪实验、核磁共振（ＮＭＲ） 等方法研究了萃金过程及负载金有机相的溶液结构， 实验结果表明： 伴随萃取过程， 有机相金含量逐渐增加， 有机相含水量逐渐增加， 磷酸三丁脂（ＴＢＰ） 中磷氧双键 （Ｐ Ｏ） 伸缩振动吸收峰向低频移动； 核磁共振（ＮＭＲ） ３１ Ｐ的化学位移向高场移动。表明在有机相的聚集体中ＴＢＰ的磷氧基与氰化金阴离子有相互作用
In this paper, the Fourier transform infrared spectroscopy (FTIR), radioisotope tracer experiments and nuclear magnetic resonance (NMR) were used to study the gold extraction process and the solution structure of gold supported organic phase. The experimental results show that with the extraction process, The content of water in the organic phase increased gradually, and the absorption peak of the stretching vibration of phosphorus oxy double bond (P O) in tributyl phosphate (TBP) moved to low frequency. The chemical shift of 31 P of nuclear magnetic resonance shifted to high field. It is shown that the phosphorus oxy-group of TBP interacts with gold cyanide anion in the aggregate of organic phase