A new chelate-forming resin with dithizone functional group prepared by the conversion of an anion-exchange resin.
A new chelate-forming resin with dithizone functional group prepared by the conversion of an anion-exchange resin.
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阴离子交换树脂转化制备的一种新型带有双硫腙官能团的螯合物形成树脂。
DOI：
10.1016/0039-9140(76)80140-3
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发表时间：
1976
期刊：
影响因子：
6.1
通讯作者：
S. Yube
中科院分区：
文献类型：
--
作者：
H. Tanaka;M. Chikuma;A. Harada;T. Ueda;S. Yube
通过释放相等摩尔数的氯离子（通过Yobr方法测定）证实树脂和α之间发生离子交换。然而，即使用~~氢氧化钠也不能从树脂上洗脱I。树脂基体上的强吸附作用可以用离子交换和某些物理吸附来解释。事实上，双硫腙被大量吸附在树脂基质上，但没有氯离子释放。树脂对汞（X）的行为如图2所示。从图2中可以看出，Hg（I_1）与树脂的结合比约为1：2，在pH1.0 -5.4范围内，汞（I_1）与树脂的组成也为1：2（摩尔比法）。这意味着树脂上的L被完全用于有效吸附汞（II）。
The occurrence of ion-exchange between the resin and &was confirmed by the release of an equal number of moles of chloride ion (determined by Yobr’s method). I is, however, not eluted from the resin even with~~ sodium hydroxide. The strong adsorpti: n of & on the resin matrix may be explained in terms of both ion-exchange and some physical adsorption. In fact, dithizone is considerably adsorbed on the resin matrix, but without release of chloride.The behaviour of the resin towards mercury (X) is shown in Fig. 2. The binding ratio of Hg (I1) to & on the resin wae found to be about 1: 2 from Fig. 2, and the composition of the mercury (I1) ohelate with; in the pH range 1.0-5.4 was also 1: 2 (mole-ratio method). This means that the L on the resin was utilized completely for the effective adsorption of mercury (II).