Asolventventingtechniqueforinjection ofvolumesuptol plon 50 pm i.d. SFC columns has been compared to direct injection methods.The peak broadening and peak splitting observed with direct injection have been examined and found to be related to the starting pressure, the column temperature, and the sam
A solvent evaporation sample injection technique for capillary supercritical fluid chromatography
β Scribed by France, J. E. ;Voorhees, K. J.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 297 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0935-6304
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An analysis of the precision obtained using commercially available microvalve injectors is reported for three modes of injection: conventional split; timed-split; and direct. Results from this study show that good precision (< 3% RSD for external standard and < 1% RSD for internal standard methods)
A splitless injection technique, allowing 0.5 pI injectionson 50 pm i.d. columns, has been developed.
## Abstract A solventβfree sample introduction method for supercritical fluid chromatography that uses polymer coated fused silica fibers results in very stable baseline and high efficiency separations. The method has two steps: first, a fiber is exposed to a prepared mixture of target analytes or
## Abstract A sample introduction system for capillary SFC was developed to allow introduction of relatively large sample volumes without significant decrease in chromatographic efficiency and resolution. The system includes a sample inlet capillary which receives the liquid aliquot from the LC, wh