Preparation and ion chromatographic properties of a new core-shell chromatographic support Al2O3/SiO2-10.
A new stationary phase Al(2)O(3)/SiO(2)-10 was prepared and characterized by XPS, XRD, SEM and surface analysis. The anion exchanger properties of this new stationary phase were investigated by the separation of inorganic anions in ion chromatography (IC). pH of the mobile phase, concentration and strength of the Lewis base of the elute, and the organic modifier of the mobile phase strongly affect the separation of inorganic anions, and anion exchange selectivities of the analyte on the new support are significantly different from quaternary ammonium styrene based anion exchangers. The result of separation of inorganic anions shows that the new stationary phase provides excellent column efficiency, well-defined chromatographic peaks and favorable retention times.
Liang
Xiaojing
X
Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.
Wang
Shuai
S
Niu
Jingang
J
Liu
Xia
X
Jiang
Shengxiang
S
D000537:Aluminum Oxide / Q000737:chemistry*; D000838:Anions / Q000302:isolation & purification; D002852:Chromatography, Ion Exchange / Q000379:methods*; D000432:Methanol / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D011189:Potassium Chloride / Q000737:chemistry; D000644:Quaternary Ammonium Compounds / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D019346:Sodium Acetate / Q000737:chemistry; D020058:Styrene / Q000737:chemistry; D013499:Surface Properties; D014961:X-Ray Diffraction
D000838:Anions; D000644:Quaternary Ammonium Compounds; D020058:Styrene; D019346:Sodium Acetate; D011189:Potassium Chloride; D012822:Silicon Dioxide; D000537:Aluminum Oxide; D000432:Methanol