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Citation: DAI Guoxin, WANG Di, WANG Yan, CAO Zhihan, DAI Rongji. Preparation and application of temperature-sensitive affinity chromatographic materials for enrichment of phosphoric acid compounds[J]. Chinese Journal of Chromatography, ;2019, 37(4): 376-382. doi: 10.3724/SP.J.1123.2018.08041 shu

Preparation and application of temperature-sensitive affinity chromatographic materials for enrichment of phosphoric acid compounds

School of Life Science, Beijing Institute of Technology, Beijing 100081, China

Received Date: 27 August 2018

Fund Project: Foundation of Innovation Center of Radiation Application (No. KFZC2018040208).

Based on the surface initiated-reversible addition fragmentation chain transfer (SI-RAFT) method, an immobilized metal ion affinity chromatographic material, silica@ploy(N-isopropylacrylamide-co-(aminomethyl)phosphonic acid)-titanium(Ⅳ) (silica@p(NIPAAm-co-AMPA)-Ti⁴⁺), was synthesized by the method of rapid introduction of functional groups. The synthesis of the material was confirmed by FT-IR and X-ray photoelectron spectroscopy. The grafting ratio and lower critical solution temperature (LCST) of the material were measured by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results showed that the material had excellent temperature-sensitive properties and could successfully capture and release adenosine triphosphate successfully. The service life of the material could be extended by online supplementation of Ti⁴⁺.
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