Issue 5, 2004
From the journal:

Analyst

QCM array for on-line-monitoring of composting procedures†

Franz L. Dickert,*a   Peter A. Lieberzeit,a   Paul Achatz,a   Christian Palfinger,a   Michael Fassnauer,a   Erich Schmid,a   Wolfgang Werthera  and  Gerd Hornerb  

* Corresponding authors

a Institute of Analytical Chemistry, Vienna University, Waehringer Strasse 38, A-1090 Vienna, Austria
E-mail: Franz.Dickert@univie.ac.at
Fax: +43/1/4277-9523
Tel: +43/1/4277-52317, – 52301

b HKR Sensorsysteme GmbH, Frauenstrasse 22, D-80469 Munich, Germany
E-mail: G.Horner@HKR-Sensor.de
Fax: +49/89/242416-55
Tel: +49/89/242416-0

Abstract

Six QCM resonators forming a sensor array were coated with different molecularly imprinted polymers for the on-line monitoring of composting procedures. Four key analytes are traced, namely water, 1-propanol, ethyl acetate and limonene. Trendlines obtained on-line by the sensor during measurements in a commercial composter give a distinct pattern: the signal for the alcohols first decreases according to an increase in ethyl acetate concentration, and increases again, when obviously no more acetic acid is formed. Limonene is detected in later stages of composting. Similar trends could also be observed by GC-MS. Additionally, chromatographic and sensor data for limonene could be correlated with each other.

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Article information

DOI
https://doi.org/10.1039/B315356H
Article type
Paper
Submitted
26 Nov 2003
Accepted
09 Mar 2004
First published
01 Apr 2004

Analyst, 2004,129, 432-437

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QCM array for on-line-monitoring of composting procedures

F. L. Dickert, P. A. Lieberzeit, P. Achatz, C. Palfinger, M. Fassnauer, E. Schmid, W. Werther and G. Horner, Analyst, 2004, 129, 432 DOI: 10.1039/B315356H

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