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Multichannel restrictor for supercritical fluid chromatography

✍ Scribed by Jiří Verjrosta; Milena Mikešová; Alena Ansorgová; Jan Zátorský; Miloš Hajer; Václav Janda

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
210 KB
Volume
6
Category
Article
ISSN
1040-7685

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✦ Synopsis

Abstract

A new multichannel restrictor for supercritical fluid chromatography has been developed. Four construction parameters (number, length and inner diameter of channels, and their geometrical arrangement) can be varied so that restrictors with different flow characteristics can be designed. The effective ratio, L/d, in which L is the length of a channel and d is the inner diameter, is about two orders lower than values assumed for porous frit restrictors.

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✍ France, J. E. ;Voorhees, K. J. 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 482 KB

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 theseparatin