By Rocco Mazzeo
The sequence Topics in present Chemistry Collections provides severe studies from the magazine Topics in present Chemistry prepared in topical volumes. The scope of insurance is all components of chemical technology together with the interfaces with similar disciplines similar to biology, drugs and fabrics technology. The aim of every thematic quantity is to offer the non-specialist reader, no matter if in academia or undefined, a finished perception into a space the place new learn is rising that is of curiosity to a bigger medical audience.Each evaluation in the quantity seriously surveys one element of that subject and areas it in the context of the quantity as a complete. the main major advancements of the final five to ten years are provided utilizing chosen examples to demonstrate the foundations mentioned. The assurance isn't really meant to be an exhaustive precis of the sphere or comprise huge amounts of information, yet may still otherwise be conceptual, targeting the methodological considering that may let the non-specialist reader to appreciate the knowledge provided. Contributions additionally supply an outlook on strength destiny advancements within the field.
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Additional resources for Analytical Chemistry for Cultural Heritage
On the other hand, the information obtained in monochromatic mode with a microbeam from the body of the ceramic is quite complex (Fig. 6d). Highly spotty diffraction rings are observed, indicating the presence of larger crystals ([1lm), together with nanocrystalline phases. In this case, a Laue pattern may provide better quantitative crystallographic information. The distribution of iron obtained by X-ray fluorescence is shown in Fig. 6e. The distribution of hematite obtained from both powder diffraction (E ¼ 6 keV) and Laue diffraction (white beam, 5–24 keV) is presented on Fig.
Over the last 10 years, Laue micro-diffraction has been successfully applied to map grain orientation and crystal strains in various polycrystallized and composite materials [111, 178]. However only a limited number of studies have concerned cultural heritage materials up to now. For instance, the distribution of micrometricsized quartz crystals in the coating layer of terra sigillata potteries was determined using Laue microdiffraction . Liu et al. reported the presence of BaCuSi2 O6 crystals (Chinese Purple) in the paintings decorating Terra Cotta Warriors from the Qin dynasty, where Laue micro-diffraction was used to investigate the orientation and the distribution of the grains in the pigment .
Ice GE, Budai JD, Pang JW (2011) The race to X-ray microbeam and nanobeam science. Science 334(6060):1234–1239 101. Ice GE, Pang JW (2009) Tutorial on X-ray microLaue diffraction. Mat Charact 60(11):1191–1201 102. Ishii I, Hitchcook A (1988) The oscillator strengths for C1s and O1s excitation of some saturated and unsaturated organic alcohols, acids and esters. J Elect Spectrosc Relat Phenom 46(1):55–84 103. Janssens K, Alfeld M, Van der Snickt G, De Nolf W, Vanmeert F, Radepont M, Monico L, Dik J, Cotte M, Falkenberg G, Miliani C, Brunetti BG (2013) The use of synchrotron radiation for the characterization of artists’ pigments and paintings.
Analytical Chemistry for Cultural Heritage by Rocco Mazzeo