Direct ultrasonic agitation for rapid extraction of organic matter from airborne particulate

Citation
Sc. Lee et al., Direct ultrasonic agitation for rapid extraction of organic matter from airborne particulate, FRESEN J AN, 369(2), 2001, pp. 166-169
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
0937-0633 → ACNP
Volume
369
Issue
2
Year of publication
2001
Pages
166 - 169
Database
ISI
SICI code
0937-0633(200101)369:2<166:DUAFRE>2.0.ZU;2-G
Abstract
Direct ultrasonic extraction (DUE) is proposed as simple and rapid sample p retreatment method. This new approach is applied to the extraction of parti culate organic matter (POM) from airborne particulate by using dichlorometh ane (DCM) or DCM/methanol (90/10, v/v) as extractant. The analytical determ ination was carried out by weighing the extractable POM on an electrobalanc e. Total recovery for POM could be obtained when the sample was extracted t hree times with 25-50 mL extractant each for about 5 min at 50 W ultrasonic power. In comparison with conventional Soxhlet extraction, less extraction time (total 15 min only) and solvent consumption(100 mL) were required by DUE. The efficiency of the DUE was similar or even higher than the routine Soxhlet method. Additionally, the new extractor is very simple and easy to use and can accelerate the extraction procedures of organic components from various solid samples.