Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 399, Issue 3, Pages 1347-1353Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-010-4424-y
Keywords
Baltic amber; Headspace; Solid-phase microextraction; Gas chromatography-mass spectrometry
Funding
- European Union
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The aim of this study was to test and develop techniques for the detection and identification of volatile compounds released as degradation products by Baltic amber. During a preliminary investigation, the off-gassing of acidic volatiles was detected through the corrosion of lead coupons. The corrosive compounds released by the material were then identified as formic acid and acetic acid by headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry. During an advanced investigation, based on the use of artificial ageing to initiate degradation of model amber samples in different micro-climates, the detected formic acid and acetic acid off-gassing appeared to be more intense in a dry environment with normal oxygen concentration. The release of formic and acetic acids by the amber was likely the result of radical reactions which should be investigated in further studies.
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