## Abstract A dryβpacking method has been developed which enables the preparation of packed capillary columns for micro HPLC from 250 ΞΌm i.d. tubing and 5 ΞΌm packing materials. Pressurized gases, such as hydrogen and argon, were used to transport the packing media, and ethanol or methanol were used
Column technology for packed capillary columns
β Scribed by Yukio Hirata
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 679 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1040-7685
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
The packed capillary column is one type of microcolumn. It is used increasingly in liquid chromatography, supercritical fluid chromatography, and multidimensional chromatography. In order to attain high efficiency with packed capillary columns, reliable column preparation methods must be used. The development of the technique is summarized.
π SIMILAR VOLUMES
This paper is a theoretical study of electroosmotic flow through various model packings to understand the mechanisms of capillary electrochromatography Ε½ . CEC and to take full advantage of CEC. Two different equations for electroosmotic flow velocity are described and compared with each other throu
A frit restrictor interface for capillary column supercritical fluid chromatography/mass spectrometry (SFC/MS) has been constructed and used for the analysis of high boiling point alkanes. Packed column SFC/MS is described using both a moving belt liquid chromatographic/mass spectrometric interface
## Abstract Several commercially available and homeβmade reversed phase packing materials packed in capillary columns are evaluated for SFC with pure CO~2~ as mobile phase. Anilines and polycyclic aromatic hydrocarbons are used as test mixture. Some βon column endcappingβ experiments are evaluated.
Please add a reference to Chromcard Information (1) HRC &CC 1 (1978) 119 F. Rinderknecht, "A program for calculation of tm on the calculator HP-9820A by iterative refinement of a regression", private communication, 1975. ## What is it? Definition The working range of a GC column gives quantitativ