Retention of Inorganic Anions by Anion-Exchange Modified Mesoporous Zirconia Spheres as Stationary Phase for Ion Chromatography
Retention of Inorganic Anions by Anion-Exchange Modified Mesoporous Zirconia Spheres as Stationary Phase for Ion Chromatography
复制标题
阴离子交换改性介孔氧化锆球作为离子色谱固定相保留无机阴离子
DOI：
10.1007/s44211-022-00066-x
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发表时间：
2022
影响因子：
1.6
通讯作者：
Masanobu Mori
中科院分区：
文献类型：
--
作者：
Yuki Ikuta;Kyosuke Shimono;Yuhi Tsubouchi;Tsuyoshi Sugitga;Kentaro Kobayahi;Fuya Sugiyama;Daisuke Kozaki;Shinji Iwamoto;Masanobu Mori
用化学固定硅烷偶联剂(三甲基[3-(三甲氧基硅基)丙基]氯化铵；TMA)固定相，具有季铵盐官能团，作为阴离子色谱柱。对阴离子的选择性随负载TMA的量的不同而不同。TMA-ZrO2的阴离子交换容量为17 ± 3µeq/g，表现为阴离子交换反应，该反应涉及氟离子在ZrO2上的特定保留。随着淋洗液pH的升高，TMA-ZrO2对阴离子的分离度降低，随着柱温的升高，TMA-ZrO2对氟离子的选择性分离增强。通过本研究，TMA-ZrO2固定相显示出作为一种新型离子分离介质的潜力。
A zirconia (ZrO2) stationary phase with a chemically fixed silane coupling agent (trimethyl [3-(trimethoxysilyl)propyl]ammonium chloride; TMA), which possesses quaternary ammonium functional groups, is evaluated as a separation column for ion chromatography (IC) of anions. The selectivity for anions varies depending on the amount of TMA immobilized on the ZrO2. The TMA-ZrO2, with an anion-exchange capacity of 17 ± 3 µeq/g, shows an anion-exchange reaction that involves the specific retention of fluoride ion on ZrO2. The TMA-ZrO2exhibits a decrease of the anion resolution with an increase of the eluent pH and an enhancement of the selective separation of fluoride ion with an increase of the column temperature. Through this study, the TMA–ZrO2stationary phase shows potential as a new medium for ion separation.Graphical abstract