## Abstract In this investigation, liquid chromatography using Cuβphthalocyanine stationary phases were examined for polycyclic aromatic hydrocarbon (PAH) analyses. The results have indicated that Cuβphthalocyanine phases can be useful for PAH separations by their planarity recognition capabilities
Comparison of spherically and irregularly shaped stationary phase packings in microcolumn liquid chromatography
β Scribed by Johannes P. C. Vissers; Edgar C. J. Van Den Hoef; Henk A. Claessens; Jozua Laven; Carel A. Cramers
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 515 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1040-7685
No coin nor oath required. For personal study only.
β¦ Synopsis
Spherically and irregularly shaped reversed phase packings were used to slurry pack capillary fused silica columns. The selection of the packing solvents was based on the colloidal properties of the stationary phase particles and investigated by sedimentation experiments. The chromatographic performance of the microcolumns was measured with conventional parameters from plate and rate theories, and the column resistance parameter and separation impedance. Also studied was the time of analysis. The performance of spherical and irregular packings was comparable with a light preference for spherically shaped materials when time of analysis is concerned.
π SIMILAR VOLUMES
## Abstract The ability of crystalline degradation products (CDPs) of vancomycin as a chiral stationary phase was reported in a previous study for enantioselective separation of drugs, amino acids and agrochemical toxins by conventional LC column (250Γ4.6 mm). In this work, the potential of CDP of
A method is described for the determination of the content of the liquid phase in packings for gas-liquid chromatography. It is shown that the extraction method is subject to an error due to the solubility of some inorganic compounds of the support. A more satisfactory method involves the evaporat
Preparative-grade bonded pand y-cyclodextrin stationary phases were used as the packing material of liquid chromatographic analytical microcolumns. Although the resulting columns are characterized by relatively low efficiency, the high selectivity of the cyclodextrin phases nevertheless allows their