MALDI-TOF mass spectrometric identification of dyes and pigments [PDF]
Journal of the American Society for Mass Spectrometry, 2007 We have used MALDI-TOF mass spectrometry to characterize a selection of dyes from the Schweppe dye collection and pigments from the Tate Gallery collection. MALDI-TOF mass spectra of such samples are easily obtained and, through observation of both positive and negative ion spectra, provide a convenient, versatile method for dye characterization and ...
Soltzberg, L.J. +4 more
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Identification, Characterization and Antioxidant Activity of Yellowish-Orange Pigments Actinobacteria [PDF]
Hayati Journal of Biosciences, 2023 Actinobacteria are Gram-positive bacteria that can produce various secondary metabolites, including pigments that have potential as antioxidants. This study assessed the characteristics of yellowish-orange pigmented actinobacteria.
Farhana Halimah Rusyda +2 more
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Isolation and Identification of Paint Pigments by Sublimation [PDF]
Microscopy Today, 1996 Abstract The particle size of organic pigments used in modern coatings is extremely fine. Since these individual pigment crystals are typically less than 1 μm in size, they are difficult, if not impossible, to characterize and identify by microscopical means.
Skip J Palenik
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Pigments Characterization and Molecular Identification of Bacterial Symbionts of Brown Algae Padinasp. Collected from Karimunjawa Island [PDF]
Ilmu Kelautan, 2016 The search for carotenoids in nature has been extensively studied because of their applications in foods. One treasure of the biopigment source is symbiotic-microorganisms with marine biota.
Damar Bayu Murti +3 more
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Identification by RP-HPLC-DAD, FTIR, TGA and FESEM-EDAX of natural pigments prepared from Datisca cannabina L [PDF]
, 2012 In this study, natural pigments from the hemp (Datisca cannabina L) dye plant were prepared by using KAI(SO4)(2)center dot 12H(2)O (alum), FeSO4 center dot 7H(2)O and SnCl2 center dot 2H(2)O mordants.
ÇAKMAKÇI, EMRAH
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Identification of black sturgeon caviar pigment as eumelanin
Food Chemistry, 2022 Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of oxidative degradation mixtures revealed the formation of pyrrole-2,3,5-tricarboxylic acid (PTCA), a
Panzella L. +6 more
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Early 20th C Russian painting? Raman identification of modern pigments on a pastel supposedly Painted by the renowned artist Natalia Goncharova [PDF]
, 2014 A pastel painting considered to have been painted by renowned Russian artist Natalia Goncharova in c. 1913 has been shown by Raman microscopy of the pigments to have been painted after 1952, with the identification of dioxazine violet.
Robin J. H. Clark +5 more
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Photochemical colour change for traditional watercolour pigments in low oxygen levels [PDF]
, 2015 An investigation for light exposure on pigments in low-oxygen environments (in the range 0–5% oxygen) was conducted using a purpose-built automated microfadometer for a large sample set including multiple samples of traditional watercolour pigments from ...
Thomas, Jacob, +17 more
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STUDY ON THE SPECTRAL MIXING MODEL FOR MINERAL PIGMENTS BASED ON DERIVATIVE OF RATIO SPECTROSCOPY-TAKE VERMILION AND STONE YELLOW FOR EXAMPLE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Hyperspectral remote sensing is a completely non-invasive technology for measurement of cultural relics, and has been successfully applied in identification and analysis of pigments of Chinese historical paintings.
H. Zhao, Y. Hao, X. Liu, M. Hou, X. Zhao
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Camera Color Correction for Cultural Heritage Preservation Based on Clustered Data
Journal of Imaging, 2021 Cultural heritage preservation is a crucial topic for our society. When dealing with fine art, color is a primary feature that encompasses much information related to the artwork’s conservation status and to the pigments’ composition.
Marco Trombini +4 more
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