Results 21 to 30 of about 666 (170)

Exceptional Illuminated Manuscripts at the Gulbenkian Museum: The Colors of a Bible and Three Gospels Produced in the Armenian Diaspora

Heritage, 2023
The illuminated manuscripts at the Gulbenkian Museum were produced in the 17th century, in scriptoria of the Armenian diaspora. In this work, we selected analytical methods that can be used in situ to study the colors of the illuminations.
Hermine Grigoryan, Márcia Vieira, Paula Nabais, Rita Araújo, Maria J. Melo, Marta Manso, Maria Adelaide Miranda, Jorge Rodrigues   +7 more
doaj   +1 more source

Evidence of early amorphous arsenic sulfide production and use in Edo period Japanese woodblock prints by Hokusai and Kunisada

Heritage Science, 2019
This study explores the evolution of the manufacturing process of artificial arsenic sulfide pigments in Edo-period Japan through the analysis of three impressions of the same print dated from the 1830s and attributed to Katsushika Hokusai (1760–1849 ...
Marc Vermeulen, Marco Leona
doaj   +1 more source

Determination of arsenic and sulfur anomalies in the soils of Dasht-e-Khash, SE Iran: long-term effects of the Taftan volcano [PDF]

مخاطرات محیط طبیعی, 2022
In this research pollution of soil samples from the southern slopes of the Taftan volcano, SE Iran, and the Khash Plain to the south of the volcano is studied.
Azam Shirin-e-Shandiz, Mostafa Ghomashi, Ali Ahmadi   +2 more
doaj   +1 more source

Current Research on Artificial Arsenic Sulphide Pigments in Artworks: A Short Review

CHIMIA, 2008
A general re-examination of the artificial arsenic sulphide pigments orpiment, realgar and alacranite using polarised light microscopy (PLM), scanning electron microscopy (SEM) combined with energy and wavelength dispersive X-ray analysis (EDX ...
Günter Grundmann, Mark Richter
doaj   +1 more source

Combined Micro- and Macro scale X-ray powder diffraction mapping of degraded Orpiment paint in a 17th century still life painting by Martinus Nellius

Heritage Science, 2019
The spontaneous chemical alteration of artists’ pigment materials may be caused by several degradation processes. Some of these are well known while others are still in need of more detailed investigation and documentation.
Jonas Simoen, Steven De Meyer, Frederik Vanmeert, Nouchka de Keyser, Ermanno Avranovich, Geert Van der Snickt, Annelies Van Loon, Katrien Keune, Koen Janssens   +8 more
doaj   +1 more source

Mineral Arsenicals in Traditional Medicines: Orpiment, Realgar, and Arsenolite [PDF]

The Journal of Pharmacology and Experimental Therapeutics, 2008
Mineral arsenicals have long been used in traditional medicines for various diseases, yet arsenic can be highly toxic and carcinogenic. Arsenic in traditional medicines typically comes from deliberate addition for therapeutic purposes, mainly in the form of mineral arsenicals, including orpiment (As2S3), realgar (As4S4), and arsenolite (contains ...
Jie, Liu, Yuanfu, Lu, Qin, Wu, Robert A, Goyer, Michael P, Waalkes   +4 more
openaire   +2 more sources

Chemical Phase Analysis of Arsenic Ores—A Study on Selective Separation Conditions of Orpiment and Realgar

Yankuang ceshi
As a rich symbiotic mineral resource, orpiment (As2S3) and realgar (AsS/As2S2/As4S4) are common sulfide minerals of arsenic. However，due to their similar chemical properties, the chemical phase analysis method of arsenic has always taken these two ...
Yani DONG, Ying XIONG, Ruohui PEI, Xiao ZHANG, Guangjin XIE, Changzheng CUI   +5 more
doaj   +1 more source

Research on the Hyperspectral-based Unmixing Model of Composite Pigments on Mural Surfaces [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Murals constitute an invaluable component of cultural heritage, encapsulating profound artistic and historical significance. Hyperspectral remote sensing, as a non-destructive testing technique, offers an effective means for analysing and identifying ...
Y. Zhang, Y. Zhang, S. Lyu, S. Lyu, M. Hou, M. Hou, J. Guo, J. Yan, J. Yan   +8 more
doaj   +1 more source

Painting the Palace of Apries II: ancient pigments of the reliefs from the Palace of Apries, Lower Egypt

Heritage Science, 2019
Fragments of painted limestone reliefs from the Palace of Apries in Upper Egypt excavated by Flinders Petrie in 1908–1910 have been investigated using visible-induced luminescence imaging, micro X-ray fluorescence, laser ablation inductively coupled ...
Signe Buccarella Hedegaard, Thomas Delbey, Cecilie Brøns, Kaare Lund Rasmussen   +3 more
doaj   +1 more source

Arsenic Uptake From Artisanal Gold Mining Wastewater Using Magnetized and Functionalized 2‐Mercaptobenzothiazole Nanosilica: Characterization, Taguchi Optimization, Statistical Analysis and Adsorbent Reusability

Engineering Reports, Volume 8, Issue 8, August 2026.
A local adsorbent, synthesized via magnetization and functionalization of nanosilica from rice husk, was applied to eliminate As5+ from gold mining wastewater sample. Adsorbent was characterized using BET, FTIR, SEM and XRD and was proved to be effective and suitable for As5+ removal from gold mining wastewater.
Lekan Taofeek Popoola, Nacer Badi, Usman Taura, Yuli Panca Asmara, Alfred Ogbodo Agbo, Celestine Chidi Nwogbu, Tajudeen Adejare Aderibigbe, Saheed Olalekan Alawode, Lois Onyejere Nwobodo   +8 more
wiley   +1 more source