By Roger M. Rowell, R. James Barbour
This can be the 1st ebook to mix chemistry with innovations of retaining archaeological wooden. one of the subject matters mentioned in its 17 chapters are the chemical composition of wooden and alterations led to through the decay method, biopredators, radiation curing, freeze-drying, chemical upkeep thoughts, museum environments, the ethics of conservation, and cost platforms for selecting one of the characteristics of wooden that may be preserved. This quantity offers knowing, from a systematic viewpoint of archaeological wooden, its homes, its chemistry and its protection.
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Additional info for Archaeological Wood. Properties, Chemistry, and Preservation
3 SAMPLING frequency of sampling, and maintenance of the integrity of the sample prior to the analysis. Gases can be collected as is, but the collection also can be done into a liquid or solid medium, either without chemical modiﬁcation (adsorption or dissolution) or following a chemical reaction with a collecting reagent. The gas collection techniques can be grouped in static sampling, dynamic sampling, and sampling based on diffusion. Several procedures are used for the determination of the amount of collected gas.
Sampling statistics. Hoboken: Wiley; 2009. 23. Thompson SK. Sampling. 3rd ed. Hoboken: Wiley; 2012. 24. In: Bayona JM, editor. Sampling theory and methodology. Pawliszyn J, editor. Comprehensive sampling and sample preparation, vol. 1. Amsterdam: Elsevier; 2012. 25. Wight DD. Fundamentals of air sampling. ; 1994. 26. Baiulescu GE, Dumitrescu P, Zugravescu PG. Sampling. Chichester: E. Horwood; 1991. 27. Carr-Brion KG, Clarke JRP. Sampling systems for process analysers. Oxford: Butterworth-Heinemann; 1996.
This type of sample must either be homogenized again when a subsample is collected, or each portion of the sample must be analyzed separately. Other special problems related to liquid sampling can be the chemical instability, volatility, high viscosity, adsorption of water from atmosphere. These characteristics must be I. GENERAL CONCEPTS IN SAMPLE PREPARATION 30 1. PRELIMINARIES TO SAMPLE PREPARATION considered during sampling as well as during sample preservation and handling. Some Comments on Sampling of Solids The main concern for the collection of solid sample is that they should be representative.
Archaeological Wood. Properties, Chemistry, and Preservation by Roger M. Rowell, R. James Barbour