✦ LIBER ✦

Rapid determination of trace nitrophenolic organics in water by combining solid-phase extraction with surface-assisted laser desorption/ionization time-of-flight mass spectrometry

✍ Scribed by Yu-Chie Chen; Jentaie Shiea; Jan Sunner

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 70 KB
Volume: 14
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(20000130)14:2<86::aid-rcm839>3.0.co;2-o

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✦ Synopsis

A rapid technique for the screening of trace compounds in water by combining solid-phase extraction (SPE) with activated carbon surface-assisted laser desorption/ionization (SALDI) time-of-flight mass spectrometry is demonstrated. Activated carbon is used both as the sorbent in SPE and as the solid in the SALDI matrix system. This eliminates the need for an SPE elution process. After the analytes have been adsorbed on the surfaces of the activated carbon during SPE extraction, the activated carbon is directly mixed with the SALDI liquid and mass spectrometric analysis is performed. Trace phenolic compounds in water were used to demonstrate the effectiveness of the method. The detection limit for these compounds is in the ppb to ppt range.

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