Simultaneous ion chromatographic separation of anions and cations on poly(aspartic acid) functionalized silica

The Analyst ◽  
2001 ◽  
Vol 126 (12) ◽  
pp. 2119-2123 ◽  
Author(s):  
Maria G. Kiseleva ◽  
Pavel A. Kebets ◽  
Pavel N. Nesterenko
Keyword(s):  
Aspartic Acid ◽  
Chromatographic Separation ◽  
Functionalized Silica ◽  
Anions And Cations

scholarly journals Crystal structure of (1S,2R)-2-hydroxy-1,2-diphenylethan-1-aminium (S)-2-azaniumylbutanedioate monohydrate

2017 ◽  
Vol 73 (12) ◽  
pp. 1827-1830
Author(s):  
Isao Fujii
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Aspartic Acid ◽  
Water Molecules ◽  
Acid Anion ◽  
Axis Direction ◽  
Π Interactions ◽  
Zwitterionic Form ◽  
Anions And Cations

The title diastereomeric salt, formed between 2-amino-1,2-diphenylethanol (ADE) and aspartic acid (ASP), C14H16NO+·C4H6NO4−·H2O, crystallizes as a monohydrate. The 1,2-diphenylethyl group in the cation has acisconformation, and the aspartic acid anion is in the zwitterionic form. In the crystal, the ASP anions are linkedviaN—H...O hydrogen bonds to form a 21helix along theb-axis direction. The helices are linked by the ADE cationsviaO—H...O and N—H...O hydrogen bonds, forming layers parallel to thebcplane. There are channels in the layers that are occupied by water molecules, which link to both the anions and cationsviaOwater—H...O and N—H...Owaterhydrogen bonds. There are also C—H...O and C—H...π interactions present within the layers.

ION CHROMATOGRAPHIC SEPARATION OF ANIONS AND CATIONS ON A TITANIA PACKED COLUMN

2001 ◽  
Vol 24 (3) ◽  
pp. 367-380 ◽  
Author(s):  
Jimmy C. Yu* ◽  
Feng Qu ◽  
Jun Lin ◽  
HongLung Lam ◽  
ZuLiang Chen
Keyword(s):  
Chromatographic Separation ◽  
Packed Column ◽  
Anions And Cations

scholarly journals DTPA-Functionalized Silica Nano- and Microparticles for Adsorption and Chromatographic Separation of Rare Earth Elements

2018 ◽  
Vol 6 (5) ◽  
pp. 6889-6900 ◽  
Author(s):  
Radwa M. Ashour ◽  
Michail Samouhos ◽  
Elizabeth Polido Legaria ◽  
Michael Svärd ◽  
Joakim Högblom ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Chromatographic Separation ◽  
Functionalized Silica
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