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Zic Hilic Stationary Phase. Ted ZIC -HILIC stationary phase. Schematic illustation of the inverted zwitterionic ZIC-cHILIC cholinate stationary phase. Different classes of stationary phases for HILIC. Matysová L1 Havlíková L Hájková R Krivda A Solich P.
The selectivity of the ZIC-HILIC column can be tuned by varying the amount of organic modifier the pH and the low ionic strength of the eluent where an increase in the organic solvent content or a decrease in the ionic strength promotes retention. Syncronis HILIC stationary phase carries a zwitterionic functional group of the sulfobetaine type monomerically bonded to highly pure high surface area silica. In principle HILIC stationary phases can be divided into three different groups neutral charged and zwitterionic. Separation selectivity is favored by the 11 zwitterion charge balance which makes the ZIC-HILIC column overall neutral with weak but important ionic interactions. The silica-based ZIC -HILIC sorbent has a bonded stationary phase consisting of a highly polar permanent zwitterion. Some of the zwitterionic phases are commercialized under the trademarks ZIC-HILIC ZIC-cHILIC KS-polyMPC Obelisc R and Obelisc N.
ZIC-HILIC Analytical PEEK Columns 35µm and 5µm 200Å Column id.
The sulfobetaine zwitterion has both positive quaternary ammonium and negative sulfonic acid groups in a. MS-ESI- with SIM at 1172 mz Drying-gas flow rate Drying-gas temperature Capillary voltage. ZIC-HILIC 100 x 21 mm 35 μm100 Å 1504440001 Mobile Phase. Matysová L1 Havlíková L Hájková R Krivda A Solich P. Schematic illustation of the inverted zwitterionic ZIC-cHILIC cholinate stationary phase. Separation of methacryl-amide and acrylamide on a ZIC-HILIC column 250 x 46 mm 5 um 200 Å PN.