搜索结果: 1-9 共查到“地质学 Chromatography”相关记录9条 . 查询时间(0.069 秒)
Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis
pyrohydrolysis halogen sulfur ion chromatography geological reference material
2017/4/10
We present a simplified method for simultaneous determinations of fluorine (F), chlorine (Cl), and sulfur (S) contents
and isotopic abundances in rock samples. After using pyrohydrolysis to extract F...
Isotope-ratio detection for gas chromatography
Combustion interface / Compound-specific isotope analysis GC-isotope-ratio mass spectrometry sotope-ratio-monitoring Pyrolysis interface /
2014/4/8
Instrumentation and methods exist for highly precise analyses of the stable-isotopic
composition of organic compounds separated by GC. The general approach combines a conventional GC, a chemical reac...
Application of Inverse Gas Chromatography to the Study of the Surface Properties of Slates
Inverse Gas Chromatography Slate Surface
2011/12/22
Abstract: Inverse gas chromatography (IGC) at zero surface coverage was used for determining the surface characteristics of a slate sample. Previously this sample had been characterized by means of X-...
Potassium Halide-Treated Montmorillonite (KTM) as a Solid Phase in Liquid Chromatography
Disubstituted benzenes HPLC Montmorillonite Potassium hatides
2011/12/30
Columns for high pressure liquid chromatography were prepared from spray dried samples of montmorillonite that were heated with potassium halides (KTM) to increase both the cation density on the clay ...
Inverse Gas Chromatography Study of Modified Smectite Surfaces
Smectite Intercalation Inverse gas chromatography Alkane and alkene sorption Surface acidity Surface energy
2011/12/31
Inverse gas chromatography at infinite dilution, employing alkanes and alkenes as probes, has been used to characterize the surface properties of a series of smectites of varying chemical composition....
Cross-Linked Hydroxy-Al-Montmorillonite as a Stationary Phase in Liquid Chromatography
Adsorption Chelation Cross-linked smectite Disubstituted benzene High-pressure liquid chromatography Hydroxy-Al Monosubstituted benzene Phenyl-urea Phosphate esters
2012/1/4
Quasi-spherical particles (7-µm mean diameter) were prepared from cross-linked hydroxy-Al-montmorillonite (basal spacing = 15.3 and 18.6 Å) by spray-drying. These particles (SP-CLM) were u...
Adsorption Properties of Montmorillonite and Synthetic Saponite as Packing Materials in Liquid-Column Chromatography
Adsorption Electronic absorption Liquid-column chromatography Montmorillonite Ruthenium phenanthroline Saponite
2012/1/10
The adsorption of tris(1,10-phenanthroline)-ruthenium(II) (Ru(phen)32+) by two kinds of colloidally dispersed clays, sodium montmorillonite and synthetic saponite, was studied by spectrophotometric an...
Optically Selective Adsorption of α-Amino Acids on Montmorillonite-Cu-l-Lysine Complexes in High-Pressure Liquid Chromatography
Adsorption Amino acid Cu-l-lysine High-pressure liquid chromatography Montmorillonite Optically active ligands
2012/1/11
Optically active cationic complexes adsorbed on montmorillonite can be used for the resolution of racemic mixtures. Montmorillonite-Cu-lysine systems were used as a solid phase in high-pressure liquid...
Adsorption of Dimethylanilines on Montmorillonite in High-Pressure Liquid Chromatography
Adsorption Bentonite Dimethylaniline Liquid chromatography Silica
2012/2/1
High-pressure liquid chromatography columns were packed with quasi-spherical particles of bentonite (SP-bentonite) which were prepared from a predominantly Na-bentonite powder by spray drying. The str...