高效离子交换色谱法分离和测定氯溴碘

高等学校化学学报 ›› 1982, Vol. 3 ›› Issue (1): 48.

高效离子交换色谱法分离和测定氯溴碘

刘满仓, 范必威, 胡之德

兰州大学化学系

收稿日期:1980-12-29 出版日期:1982-01-25 发布日期:1982-01-25

HPIEC SEPARATION AND DETERMINATION OF CHLORIDE BROMIDE AND IODIDE

Liu Mancang, Fan Biwei, Hu Zhide

Department of Chemistry,Lanzhou University, Lanzhou

Received:1980-12-29 Online:1982-01-25 Published:1982-01-25

摘要/Abstract

摘要： 用国产高效离子交换色谱仪及国产阴离子交换树脂研究了分离Cl^-、Br^-、Ⅰ^-的条件,以硝酸钠为洗脱液,在三十五分钟内完全分离了上述三种离子。进行了一些样品的定量测定。用无换向阀的予柱富集测定了去离子水中ppb级的Cl^-。从软硬酸碱理论的观点讨论了Cl^-、Br^-.Ⅰ^-的色谱行为,得出了用结构参数及实验条件估算分配系数的经验式:1gD=0.24φg[B]-1g[B]+0.49φ+0.61。

Abstract: The conditions of HPIECseparation of Cl^-, Br^- and I^- were studied. The ions were separated within 35minutes by using NaNO₃ as an eluent. the chloride and bromide contents of.some samples were determined. The trace amounts (ppb order) of chloride in pure water were determined by using a pre-column without a four or six way valve.The IECbecaviouf of Cl^-, Br^- and I^- was interpreted from the theory of hard and soft acids and bases. The following experimental formula was obtained.lgD= 0.24φlg[B]-lg[B] + 0.490 + 0.61 where Dis the distribution coefficient of an anion, [B] is the concentra-tion of the eluent, φ is the softness of the anion as a base.

TrendMD:

刘满仓, 范必威, 胡之德. 高效离子交换色谱法分离和测定氯溴碘. 高等学校化学学报, 1982, 3(1): 48.

Liu Mancang, Fan Biwei, Hu Zhide. HPIEC SEPARATION AND DETERMINATION OF CHLORIDE BROMIDE AND IODIDE. Chem. J. Chinese Universities, 1982, 3(1): 48.