【摘要】 本文用ＫＢｒ压片法测定了氨基膦酸树脂ＮＰ－５００，ＳＬ—４６７，ＳＬ—４１１的Ｈ型、Ｎａ型以及分别吸附了Ｃｕ２＋，Ｎｉ２＋，Ｃｏ２＋离子后的红外光谱图．谱图分析发现，在相同的吸附条件下，同一种树脂分别吸附了Ｃｕ２＋，Ｎｉ２＋，Ｃｏ２＋后，其吸附量愈大，谱图中Ｃ－Ｎ－Ｃ谱峰的位移值越大，则树脂对该金属离子的选择性愈高。结果表明，ＮＰ－５００，ＳＬ—４６７，ＳＬ－４１１树脂对过渡元素Ｃｕ２＋，Ｎｉ２＋，Ｃｏ２＋的选择性顺序为Ｃｕ２＋＞Ｎｉ２＋＞Ｃｏ２＋。另外，本文还观察到谱图中Ｃ－Ｎ－Ｃ谱峰的位移值随金属离子的负载量的增加而增大，有可能通过红外光谱法来研究氨基膦酸树脂对金属离子的负载量。更多还原

【Abstract】 The IR-spectra of aminophosphonic resins NP-500, SL-467, SL-411 or H+,Na+ types and or the resins containing Cu2+, Ni2+, Co2+ respectively were obtained by the KBr pressed disc method.The IR-spectra of SL-411 loaded with different amount of copper (Ⅱ) ion demonstrate that more the amount of the metal the resin adsorbs, the more the peak or C-N-C in its IR-spectra shifts. Therefore, the IR-spectra may be used to study the loaded capacity of the resin for metal ions.The IR-spectra show the selectivity of NP-500, SL-467, SL-411 for transition elements Cu2+, Ni2+, Co2+ was Cu2+>Ni2+>Co2+.更多还原