✦ LIBER ✦

Capillary supercritical fluid chromatography and microwave-induced plasma detection of cyclic boronate esters of hydroxy compounds

✍ Scribed by Debra R. Luffer; Milos V. Novotny

Book ID: 102944457
Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 660 KB
Volume: 3
Category: Article
ISSN: 1040-7685
DOI: 10.1002/mcs.1220030108

No coin nor oath required. For personal study only.

✦ Synopsis

A Surfatroil microwave-induced plasma was used for selective detection after capillary supercritical fluid chromatography of various biologically important compounds. Cyclic boronates were formed by esterifying catechols, monosaccharides, and cortisone, with an alkyl-or aryl-substituted boronic acid. An available spectroscopic system was modified so that the third-order boron emission line at 749.4 nm was utilized. Sensitivity for boron in catechol boronate was 25 pg s-', and the molar selectivity was >5,000 for both carbon dioxide and nitrous oxide mobile phase. Some comparisons were made with flame ionization detection.

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