部分金属离子的薄层色谱分离——Ⅱ.正丙醇体系的研究

部分金属离子的薄层色谱分离——Ⅱ.正丙醇体系的研究 THIN-LAYER CHROMATOGRAPHIC SEPARATION OF PARTIAL METAL IONS Ⅱ. Study of n-propyl alcohol system 罗焕光 Luo Huanguang and Wang Hui first-author 王辉 用薄层色谱法,研究了正丙醇体系的四种展开剂中各组份比例变化对部分金属离子分离的影响:（1）展开剂Ⅰ——正丙醇/乙酸乙酯/浓HNO 3 的最佳体积比为10∶30∶1.0时,可成功地分离Pb 2+ —Fe 3+ —Ni 2+ —Co 2+ (或Cd 2+ 、Zn 2+ )—Cu 2+ .（2）展开剂Ⅱ——正丙醇/二氯甲烷/浓HNO 3 的体积比为10∶30∶1.0时,可将Sn 4+ 与Co 2+ 、Cd 2+ 、Zn 2+ 、Ni 2+ 、Cu 2+ 分开;而当选用其体积比为30∶10∶1.0时,可满意地分离Pb 2+ —Fe 3+ —Cd 2+ (或Ni 2+ 、Co 2+ 、Zn 2+ 、Cu 2+ ).（3）展开剂Ⅲ——正丙醇/环已烷/无水乙醇/浓HNO 3 的体积比为20∶15∶15∶1.0时可获得Pb 2+ —Fe 3+ —Cd 2+ —Co 2+ (或Zn 2+ 、Cu 2+ )的完全分离。（4）展开剂Ⅳ——正丙醇/石油醚/四氢呋喃/浓HNO 3 的体积比为25∶15∶15∶1.0时,可将Pb 2+ —Fe 3+ —Ni 2+ (或Co 2+ 、Cd 2+ )—Zn 2+ (或Cu 2+ )分离。 Thin-layer chromatographic behaviour of partial metal ions in four developing solvent of n-propyl alcohol system has been studied. （1） Pb 2+ —Fe 3+ —Ni 2+ —Co 2+ (or Cd 2+ , Zn 2+ )—Cu 2+ has been successfully separated, when optimum the volume ratio of n-propyl alcohol/ethyl acetate/concentrated HNO 3 （developing solvent Ⅰ） was selected to be 10: 30: 1. （2） Sn 4+ has been completely separated from Co 2+ or Cd 2+ , Zn 2+ , Ni 2+ , Cu 2+ , when the volume ratio of n-propyl alcohol/dichloromethane/concentrated HNO 3 （developing solvent Ⅱ） was selected to be 10: 30: 1; but Pb 2+ —Fe 3+ —Cd 2+ (or Ni 2+ , Co 2+ , Zn 2+ , Cu 2+ ) can be satisfactorily separated, when optimum the volume ratio of each component of the developing solvent Ⅱ was selected to be 30: 10: 1. （3） Pb 2+ —Fe 3+ —Cd 2+ —Co 2+ (or Zn 2+ , Cu 2+ ) may be completely separated, when optimum the volume ratio of n-propyl alcohol/cyclohexane/aahydrous alcohol/concentrated HNO 3 （developing solvent Ⅲ） was selected to be 20: 15: 15: 1. （4） Pb 2+ —Fe 3+ —Ni 2+ (or Co 2+ , Cd 2+ )—Zn 2+ (or Cu 2+ ) can be completely separated, when optimum the volume ratio of n-propyl alcohol/petroleum ether/tetrahydrofuran/concentrated HNO 3 （developing solvent Ⅳ） was selected to be 25: 15: 15: 1。 1987-01-01 2021-04-01 1