title: Novel inorganic mesoporous material with chiral nematic structure derived from nanocrystalline cellulose for high-resolution gas chromatographic separations.
abstract: Chiral nematic mesoporous silica (CNMS) has attracted widespread attention due to some unique features, such as its nematic structure, chirality, large pore size, high temperature resistance, low cost, and ease of preparation. We first reported the use of CNMS as a stationary phase for capillary gas chromatography (GC). The CNMS-coated capillary column not only gives good selectivity for the separation of linear alkanes, aromatic hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), and isomers but also offers excellent enantioselectivity for chiral compounds. Compared with enantioseparations on commercial β-DEX 120 and Chirasil-l-Val columns, a CNMS-coated capillary column offers excellent enantioselectivity, chiral recognition complementarity, and the separation of analytes within short elution times. It can also be potentially applied in high-temperature GC at more than 350 °C. This work indicates that CNMS could soon become very attractive for separations.
authors.affiliation: Department of Chemistry, East China Normal University , Shanghai 200241, People's Republic of China.
authors.forename: Jun-Hui
authors.initials: JH
authors.lastname: Zhang
authors.forename: Sheng-Ming
authors.initials: SM
authors.lastname: Xie
authors.forename: Mei
authors.initials: M
authors.lastname: Zhang
authors.forename: Min
authors.initials: M
authors.lastname: Zi
authors.forename: Pin-Gang
authors.initials: PG
authors.lastname: He
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Yuan
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D002849:Chromatography, Gas / Q000379:methods*; D003460:Crystallization; D007287:Inorganic Chemicals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D033362:Powder Diffraction; D013237:Stereoisomerism
chemical_list: D007287:Inorganic Chemicals; D002482:Cellulose