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Shang HB, Zhang JM, An Z, Li XQ, Li X, Wu L, Li D. Reversible polarity-switch of thin-layer chromatography by photo-induction with multi-regulation in spatial dimension. Talanta 2024; 271:125654. [PMID: 38224659 DOI: 10.1016/j.talanta.2024.125654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/05/2023] [Accepted: 01/08/2024] [Indexed: 01/17/2024]
Abstract
Generally, thin-layer chromatography always undertakes the indispensable role in rapid screening and identification of specific compounds. Stationary phase is the core part of thin-layer chromatography with fixed property, which leading to the limitations of separation mode of only regulating the composition of mobile phase. This work was an attempt to fabricate the unique photosensitive thin-layer chromatography to make up the above major drawback. 4-[3-(Triethoxysilyl)propoxy]azobenzene (azo-PTES) was synthesized as photosensitive modifier to fabricate the photosensitive stationary phase, and the transformation of cis-trans structure of azo-PTES proceeds along with polarity difference under 365 nm and 473 nm irradiation. Based on this, the proposed photosensitive thin-layer chromatography shows the reversible switch of polarity of stationary phase by photoinduction, followed by the deserved reversible separation behavior. Furthermore, multi-regulation in spatial dimension was achieved based on the high freedom of spatial regulation of photoinduction, which brings about the integration of stationary phase with different polarity, just by photoinduction. The concept of photosensitive thin-layer chromatography provides new idea for improving separation efficiency and developing multi-dimensional thin-layer chromatography on the one plate.
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Affiliation(s)
- Hai-Bo Shang
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji City, 133002, Jilin Province, China; Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji City, 133002, Jilin Province, China
| | - Jie-Min Zhang
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji City, 133002, Jilin Province, China
| | - Zhengjiu An
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji City, 133002, Jilin Province, China
| | - Xin-Qi Li
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji City, 133002, Jilin Province, China
| | - Xia Li
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji City, 133002, Jilin Province, China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China.
| | - Donghao Li
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji City, 133002, Jilin Province, China; Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji City, 133002, Jilin Province, China.
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