scholarly journals Silica gel with covalently immobilized imidazolium salt as a new stationary phase for ion chromatography

2020 ◽  
Author(s):  
V. V. Konshin ◽  
D. A. Chuprynina ◽  
I. A. Lupanova ◽  
Dzh. N. Konshina
Keyword(s):  
Stationary Phase ◽  
Silica Gel ◽  
Ion Chromatography ◽  
Imidazolium Salt ◽  
New Stationary Phase

Silica gel modified with polyaniline as a stationary phase in the ion chromatography of nitrate(III) and nitrate(V) ions

2013 ◽  
Vol 25 (3) ◽  
pp. 423-429
Author(s):  
I. Sowa ◽  
D. Zajdel ◽  
R. Kocjan ◽  
M. Pizoń ◽  
M. Wójciak-Kosior
Keyword(s):  
Stationary Phase ◽  
Silica Gel ◽  
Ion Chromatography

A New Kind of Material for HPLC – Dioscin-Bonded Silica Gel Stationary Phase

2015 ◽  
Vol 723 ◽  
pp. 680-683
Author(s):  
Xin Yi Li ◽  
Xiao Juan Gu ◽  
Bao Chun Shen
Keyword(s):  
Stationary Phase ◽  
Silica Gel ◽  
High Performance ◽  
Panax Notoginseng ◽  
Active Pharmaceutical Ingredient ◽  
Reversed Phase ◽  
One Pot ◽  
Column Temperature ◽  
Hplc Fingerprint ◽  
New Stationary Phase

A new dioscin-bonded silica gel stationary phase with natural active ingredient for high performance liquid chromatography was prepared by one-pot reaction method, using 1,6-diisocyanate as the spacer arm. The structure of new stationary phase was characterized by solid-state NMR techniques, infrared spectroscopy, elemental analysis, thermogravimetric analysis and scanning electron microscope. These results show that the dioscin has been bonded to the silicia gel. The resulting stationary phase containes 127.6 μmol/g dioscin ligand. The chromatographic performance of this new stationary phase was evaluated by different kinds of solute probes. The results illustrate that the new stationary phase has a typical reversed phase chromatographic property, meanwhile it could present various interactions with solutes. The HPLC fingerprint of PNS(Panax Notoginseng saponins) API(active pharmaceutical ingredient) on the dioscin-bonded silica gel stationary phase was established. The mobile phase was consisted of gradient acetonitrile and water. The detection wavelength was 203 nm, the column temperature was maintained at 35 degrees Celsius, the flow rate was 0.8ml/min and the injection volumn was 15 μL. The contents of the 5 co-possessing components were determined simultaneously. A new material for HPLC was made by natural product. The using of dioscin-bonded silica gel stationary phase provides a new idea in natural products research.

A new approach for trace analysis of guanidine compounds in surface water with resorcinarene-based ion chromatography columns

The Analyst ◽  
2016 ◽  
Vol 141 (3) ◽  
pp. 939-946 ◽  
Author(s):  
Tayyebeh Panahi ◽  
Douglas J. Weaver ◽  
John D. Lamb ◽  
Roger G. Harrison
Keyword(s):  
Surface Water ◽  
Stationary Phase ◽  
Glutamic Acid ◽  
Ion Chromatography ◽  
Trace Analysis ◽  
Macroporous Resin ◽  
New Approach ◽  
Chromatography Columns ◽  
New Stationary Phase

New stationary phase materials based on glutamic acid functionalized resorcinarenes bound to divinylbenzene macroporous resin are used to separate guanidine contaminants in surface water.

Synthesis and properties of a newly obtained sorbent based on silica gel coated with a polyaniline film as the stationary phase for non-suppressed ion chromatography

2013 ◽  
Vol 787 ◽  
pp. 260-266 ◽  
Author(s):  
Ireneusz Sowa ◽  
Magdalena Wójciak-Kosior ◽  
Piotr Drączkowski ◽  
Maciej Strzemski ◽  
Ryszard Kocjan
Keyword(s):  
Stationary Phase ◽  
Silica Gel ◽  
Ion Chromatography ◽  
Polyaniline Film

Iodide analysis by ion chromatography on a new stationary phase of polystyrene-divinylbenzene agglomerated with polymerized-epichlorohydrin-dimethylamine

2015 ◽  
Vol 26 (8) ◽  
pp. 1026-1030 ◽  
Author(s):  
Mu-Hua Wang ◽  
Zhong-Ping Huang ◽  
Jun-Wei Liu ◽  
Jie He ◽  
Jia-Jie Zhang ◽  
...  
Keyword(s):  
Stationary Phase ◽  
Ion Chromatography ◽  
New Stationary Phase

A phenylenediamine-based carbon dot-modified silica stationary phase for hydrophilic interaction chromatography

The Analyst ◽  
2020 ◽  
Vol 145 (3) ◽  
pp. 1056-1061 ◽  
Author(s):  
Yali Yang ◽  
Haijuan Zhang ◽  
Jia Chen ◽  
Zhan Li ◽  
Liang Zhao ◽  
...  
Keyword(s):  
Stationary Phase ◽  
Carbon Dots ◽  
Porous Silica ◽  
Hydrophilic Interaction Chromatography ◽  
Silica Spheres ◽  
Hydrophilic Interaction ◽  
Modified Silica ◽  
Carbon Dot ◽  
New Stationary Phase ◽  
Enhanced Selectivity

Red emitting carbon dots derived from p-phenylenediamine were successfully grafted onto the surface of porous silica spheres which served as a new stationary phase for hydrophilic interaction chromatography with enhanced selectivity.

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