Abstract
Determination of degradation compounds of aged and deacidified papers requires an application of several analytical methods, including chromatographic and electrophoretic ones. Paper and paper extracts are very complex samples. Therefore, application of sample preparation methods is mostly involved in process of analysis. Sampling and sample preparation techniques provide transfer of analytes from a solid sample or from the gas phase (vapour) that exists above a solid sample into the extraction medium. Many extraction techniques were introduced, including conventional and advanced extractions utilizing water or organic extraction solvents, sampling tubes with adsorbents or fibre, often with the preconcentration of analytes. Passive sampling and solid-phase microextraction approaches were introduced as non-invasive techniques in the analysis of historical books and monitoring of indoor air in libraries and archives. This mini-review summarizes the sampling and sample preparation methods as well as new trends applicable in the analysis of degradation compounds of aged and deacidified papers.
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