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Sensors 2007, 7(12), 3136-3145; doi:10.3390/s7123136
Article

Non-Destructive Evaluation of Historical Paper Based on pH Estimation from VOC Emissions

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Received: 12 November 2007; Accepted: 4 December 2007 / Published: 5 December 2007
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Abstract: Volatile organic compounds (VOCs) emitted from materials during degradationcan be a valuable source of information. In this work, the emissions of furfural and aceticacid from cellulose were studied using solid-phase micro-extraction (SPME) incombination with gas chromatography-mass spectrometry. Two sampling techniques wereemployed: static headspace sampling using SPME for 1 h at 40 oC after 18-h samplepreparation at 80 oC in a closed glass vial, and contact SPME in a stack of paper (or abook). While a number of VOCs are emitted from paper under conditions of natural oraccelerated degradation, two compounds were confirmed to be of particular diagnosticvalue: acetic acid and furfural. The emissions of furfural are shown to correlate with pH ofthe cellulosic environment. Since pH is one of the most important parameters regardingdurability of this material, the developed method could be used for non-destructiveevaluation of historical paper.
Keywords: gas chromatography-mass spectrometry; SPME; pH; volatile organic compounds; paper; analysis. gas chromatography-mass spectrometry; SPME; pH; volatile organic compounds; paper; analysis.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Strlič, M.; Cigić, I.K.; Kolar, J.; De Bruin, G.; Pihlar, B. Non-Destructive Evaluation of Historical Paper Based on pH Estimation from VOC Emissions. Sensors 2007, 7, 3136-3145.

AMA Style

Strlič M, Cigić IK, Kolar J, De Bruin G, Pihlar B. Non-Destructive Evaluation of Historical Paper Based on pH Estimation from VOC Emissions. Sensors. 2007; 7(12):3136-3145.

Chicago/Turabian Style

Strlič, Matija; Cigić, Irena K.; Kolar, Jana; De Bruin, Gerrit; Pihlar, Boris. 2007. "Non-Destructive Evaluation of Historical Paper Based on pH Estimation from VOC Emissions." Sensors 7, no. 12: 3136-3145.


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