Non-destructive NIR-FT-Raman analyses in practice. Part II. Analyses of 'jumping' crystals, photosensitive crystals and gems

2001 ◽  
Vol 371 (7) ◽  
pp. 1018-1022 ◽  
Author(s):  
Schrader B. ◽  
Boese R. ◽  
Rademacher P. ◽  
L. von Cranach ◽  
Andreev G.
Keyword(s):  
Non Destructive ◽  
Ft Raman

Non-destructive NIR FT-Raman analyses of plants

1999 ◽  
pp. 455-456
Author(s):  
B. Schrader ◽  
H. Schulz ◽  
H. H. Klump
Keyword(s):  
Non Destructive ◽  
Ft Raman

Non-destructive NIR FT Raman analysis of plants

1999 ◽  
Vol 509 (1-3) ◽  
pp. 201-212 ◽  
Author(s):  
B Schrader ◽  
H.H Klump ◽  
K Schenzel ◽  
H Schulz
Keyword(s):  
Raman Analysis ◽  
Non Destructive ◽  
Ft Raman

scholarly journals Characterization of medieval-like glass alteration layers by laser spectroscopy and nonlinear optical microscopy

2021 ◽  
Vol 136 (8) ◽  
Author(s):  
Mohamed Oujja ◽  
Teresa Palomar ◽  
Marina Martínez-Weinbaum ◽  
Sagrario Martínez-Ramírez ◽  
Marta Castillejo
Keyword(s):  
Optical Microscopy ◽  
Nonlinear Optical ◽  
Three Dimensional ◽  
Chemical Characterization ◽  
Conservation Strategies ◽  
Cross Sectional ◽  
Nonlinear Optical Microscopy ◽  
Non Destructive ◽  
Ft Raman

AbstractHistorical glass-based objects undergo, since the time of their manufacture, different degradation phenomena that are related to their composition and to the environment to which they were exposed. Three-dimensional (3D) structural and chemical characterization of the degradation layers is important to select the most adequate conservation strategies for glass objects. Optical microscopy (OM) is the most frequently used non-destructive method to examine the surface of historical glasses; however, the 3D structural assessment of alteration layers requires applying the destructive modality of this technique to conduct a cross-sectional study. In this work, a different approach for structural and compositional characterization of alteration layers on model medieval-like glasses is presented, based on the combination of the laser spectroscopies of laser-induced breakdown spectroscopy (LIBS), laser-induced fluorescence (LIF) and FT-Raman, and the emerging, cutting edge technique of nonlinear optical microscopy (NLOM) in the modality of multiphoton excitation fluorescence (MPEF). The results obtained through this multi-analytical photonic approach were compared with those retrieved by examination of the surface and cross sections of the samples by OM and scanning electron microscopy–energy-dispersive X-ray spectroscopy (SEM–EDS). While the combination of LIBS, LIF and FT-Raman served to assess the composition of the various alteration layers, the use of MPEF microscopy allowed the non-destructive determination of the thicknesses of these layers, showing for both thickness and composition a good agreement with the OM and SEM–EDS results. Thus, the proposed approach, which avoids sample preparation, illustrates the capability of non-destructive, or micro-destructive in the case of LIBS, laser spectroscopies and microscopies for the in situ study of glass objects of historic or/and artistic value. Graphic Abstract

Minium; FT-Raman non-destructive analysis applied to an historical controversy

The Analyst ◽  
1999 ◽  
Vol 124 (9) ◽  
pp. 1323-1326 ◽  
Author(s):  
Howell G. M. Edwards,* ◽  
Dennis W. Farwell ◽  
Emma M. Newton ◽  
Fernando Rull Perez
Keyword(s):  
Destructive Analysis ◽  
Historical Controversy ◽  
Non Destructive ◽  
Ft Raman

scholarly journals Moroccan Cedar softwood study: Application of FT-Raman spectroscopy

2018 ◽  
Vol 191 ◽  
pp. 00014 ◽  
Author(s):  
Somia Fellak ◽  
Abdellatif Boukir
Keyword(s):  
Raman Spectroscopy ◽  
Degradation Process ◽  
Chemical Changes ◽  
Physico Chemical ◽  
Ft Raman Spectroscopy ◽  
Natural Degradation ◽  
Wood Surfaces ◽  
Non Destructive ◽  
Study Application ◽  
Ft Raman

As non-destructive technique, FT-Raman spectroscopy has been used to study the molecular structure and monitor changes in the composition of carbohydrates and lignin components containing wood materials. For this purpose, four samples originated from Moroccan cedar wood were analyzed. Following the FT-Raman spectra, it was found that carbohydrates were identified by the bands at 898, 1098, 1123 and 1456 cm-1, while lignin matrix was evaluated by the bands at 1657, 1598 and 1267 cm-1. The decrease of the intensities related to these feature bands reflects the effects of natural degradation phenomenon and shows the evidence of chemical changes and quick deterioration of these contents upon exposure time to natural degradation process. Thus, the FT-Raman tool has the potential to be one of crucial sources to characterize composite materials and to evaluate the chemical changes occurred on their structures under the influence of physico-chemical or biological attacks without causing any damage of the wood surfaces or their supports.

scholarly journals Non-destructive analysis of oral hard tissues by FT-Raman spectroscopy

2003 ◽  
Vol 43 (supplement) ◽  
pp. S225
Author(s):  
K. Nakamura ◽  
M. Toida ◽  
T. Shibata ◽  
Y. Ozaki ◽  
S. Era
Keyword(s):  
Raman Spectroscopy ◽  
Hard Tissues ◽  
Destructive Analysis ◽  
Ft Raman Spectroscopy ◽  
Non Destructive ◽  
Ft Raman

Non-destructive NIR-FT-Raman analyses in practice. Part 1. Analyses of plants and historic textiles

2001 ◽  
Vol 371 (7) ◽  
pp. 1009-1017 ◽  
Author(s):  
Andreev G. ◽  
Schrader B. ◽  
Schulz H. ◽  
Fuchs R. ◽  
Popov S. ◽  
...  
Keyword(s):  
Non Destructive ◽  
Ft Raman
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