scholarly journals Raman Spectroscopic Analysis of an Early 20th Century English Painted Organ Case by Temple Moore

Heritage ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 1148-1161
Author(s):  
Christopher Brooke ◽  
Howell Edwards ◽  
Peter Vandenabeele ◽  
Sylvia Lycke ◽  
Michelle Pepper

An organ case from Lincoln, England, designed by the architect Temple Moore in 1907 was examined during conservation work using Raman spectroscopy in order to analyze the decorative paint composition. Samples from the six principal colours were extracted and examined using a Bruker Senterra R200-L spectrometer. The results are the first known formal analysis of a painted scheme by this architect, and they reveal a mixture of commonly used pigments for the period and the unexpected use of simpler, earth pigments, along with an unusual admixture in the red, along with an organic additive. The findings are of importance to both the conservation of Temple Moore’s artwork, in understanding the experimentation used in early twentieth-century England, and in furthering our knowledge of ecclesiastical decorative artwork of the late nineteenth and early twentieth centuries.

Author(s):  
Elizabeth A. Carter ◽  
Fernando Rull Perez ◽  
Jesús Medina Garcia ◽  
Howell G. M. Edwards

Raman spectroscopy has been used to study fragments of early Visigothic historiated manuscripts from the important mediaeval library at Santo Domingo de Silos which were a part of a Beato dating from the tenth to the mid-eleventh centuries. These fragments are from some of the oldest manuscripts in the scriptorium of the monastery. In this study, a comparison is made between the pigments and inks used on these manuscripts and those used in a previous study of the unique Visigothic Beato de Valcavado in Santa Cruz, Valladolid, completed in the year 970, which is noted for its quality of execution as well as its content and is remarkable eschatologically in being identifiable as the complete work of only a single scribe. For comparative purposes, the pigments and inks used in the Silos Monastery Beato and a series of historiated early manuscripts from mediaeval times through to the Renaissance also held in the monastic library were analysed. Raman spectroscopy identified a range of mineral and organic pigments such as cinnabar, orpiment, minium, azurite and indigo. In addition, a number of admixtures were found, for example, indigo and orpiment to produce vergaut (green) and a mixture of cinnabar with iron-gall ink and cerussite to produce darker and lighter shades of red. Some interesting conclusions were drawn about the use of iron-gall and carbon-based inks. This article is part of the themed issue ‘Raman spectroscopy in art and archaeology’.


The Analyst ◽  
2016 ◽  
Vol 141 (21) ◽  
pp. 6104-6115 ◽  
Author(s):  
Di Yan ◽  
Christian Domes ◽  
Robert Domes ◽  
Timea Frosch ◽  
Jürgen Popp ◽  
...  

Fiber enhanced resonance Raman spectroscopy (FERS) is introduced for chemically selective and ultrasensitive analysis of the biomolecules hematin, hemoglobin, biliverdin, and bilirubin, as well as intact red blood cells.


2005 ◽  
Vol 69 (2) ◽  
pp. 169-177 ◽  
Author(s):  
R. L. Frost ◽  
M. Weier ◽  
W. Martens ◽  
L. Duong

AbstractTwo mixites from Boss Tweed Mine, Tintic District, Juab County, Utah and Tin Stope, Majuba Hill, Pershing County, Nevada, USA, were analysed by scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis and by Raman spectroscopy. The SEM images show the mixite crystals to be elongated fibres up to 200 μm long and 2 μm wide. Detailed images of the mixite crystals show the mineral to be composed of bundles of fibres. The EDX analyses depend on the crystal studied, though the Majuba mixite gave analyses which matched the formula BiCu6(AsO4)3(OH)6.3H2O. Raman bands observed in the 880–910 cm−1 and 867–870 cm−1 regions are assigned to the AsO-stretching vibrations of (HAsO4)2− and (H2AsO4)− units, whilst bands at 803 and 833 cm−1 are assigned to the stretching vibrations of uncomplexed (AsO4)3- units. Intense bands observed at 473.7 and 475.4 cm−1 are assigned to the v4 bending mode of AsO4 units. Bands observed at 386.5, 395.3 and 423.1 cm−1 are assigned to the v2 bending modes of the HAsO4 (434 and 400 cm−1) and the AsO4 groups (324 cm−1). Raman spectroscopy lends itself to the identification of minerals on host matrices and is especially useful for the identification of mixites.


Author(s):  
Sanoj Varghese ◽  
Ambili Reveendran ◽  
V.senthil Kumar ◽  
Karthikeyan Tm ◽  
Venkiteshan Ranganathan

Objective: Identification of biochemical changes in ductal cancer patient’s serum samples using micro Raman spectroscopy.Methods: Micro Raman spectroscopy was used for the identification of Raman shift bands. Data analysis was done using K-means clustering.Results: Micro Raman spectroscopic analysis of human breast cancer patient’s serum samples was done. Biochemicals present in the samples were identified from the peak evaluations. K-means clustering analysis was used to differentiate the biochemicals present in the samples.Conclusion: From the study, we conclude that Raman spectroscopy has the potential to differentiate the biochemical changes occurring in the human body, and the differentiation can be done using K-means clustering.


2014 ◽  
Vol 998-999 ◽  
pp. 358-362
Author(s):  
Jin Yu Li ◽  
He Ming Long ◽  
Di Ling Chen

Rare earth poisoning is becoming a more and more serious problem for the people, even worse there were no effective early diagnosis, prevention and treatments for that. In this study, the confocal micro-Raman spectroscopy was success used to monitor the variations of Raman spectra from the erythrocytes during the rare earth poisoning in mice, and the intensity heavily depended on the concentration, especially peaks at 756 cm-1(tryptophan), 1224 cm-1 and 1344 cm-1(CH2/CH3 stretch), 1548 cm-1(amide II) and 1566 cm-1(amide II) which can be as the diagnostic biomarkers.


2021 ◽  
pp. 129434
Author(s):  
Giuseppe Pezzotti ◽  
Wenliang Zhu ◽  
Haruna Chikaguchi ◽  
Elia Marin ◽  
Takehiro Masumura ◽  
...  

2020 ◽  
Author(s):  
S. Lakshmi Sankar ◽  
Arun Kumar Gopal ◽  
P. Kuppusami ◽  
A. Mohmmed Ghouse Danish ◽  
G. Keerthi Kumar

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