A rapid-scanning ultraviolet-visible (UV-vis) detector was interfaced successfully with capillary supercritical fluid chromatography (SFC). The pseudo on-column detection approach was used to produce a detector dead volume of less than 60 nL. High sensitivity (low picogram detection limits), a large
Capillary supercritical fluid chromatography with ultraviolet multichannel detection of some pesticides and herbicides
β Scribed by France, J. E. ;Voorhees, K. J.
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 482 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
The useful combination of capillary supercritical fluid chromatography with ultraviolet multichannel detection is demonstrated by the analysis of selected pesticides and herbicides. In this application the advantages of compound identification by ultraviolet spectrometry are appended to theseparating capabilityof capillary supercritical fluid chromatography. A pseudo oncolumn detection approach is used. Compromises from the theoretically ideal conditions for both capillary SFC and the multichannel UV detector are made to achieve a practical interfacing of the chromatographic and spectrophotometric techniques. Detection limits are at the low nanogram levels.
π SIMILAR VOLUMES
A simple interface between a capillary supercritical fluid chromatograph and an Extranuclear Simulscan mass spectrometer is described. The SFC column is directly inserted into the ion source through the existing GC-interface. The system is equipped with a splitting device which allows simultaneous E
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