scholarly journals Study on Scientific Analysis about Red Pigment And Binder - The Korean Ancient Red Pottery -

2021 ◽  
Vol 37 (5) ◽  
pp. 606-616
Author(s):  
Ui Cheon Lee ◽  
Jung Hae Park ◽  
Je Hyun Lee ◽  
Soo Chul Kim
Keyword(s):  
Bronze Age ◽  
Red Pigment ◽  
Color Development ◽  
Neolithic Age ◽  
Scientific Analysis ◽  
Ft Ir ◽  
Main Color ◽  
Band Characteristic ◽  
Atr Spectroscopy ◽  
Qualitative Analyses

From the collection of the National Kimhae Museum, qualitative analyses using microscopic observation, SEM-EDS, Raman spectroscopy, FT-IR-ATR spectroscopy, and GC-MS were conducted on three burnished red potteries—Jeoksaekmaoyeonwa burnished red pottery (Neolithic age red pottery), Dandomaoyeonwan burnished red pottery(Bronze age red pottery) and Jeoksaekmaoyeongajimun burnished red pottery(Bronze age red pottery)—to investigate the components of the red pigments and the binder. After the layers of the primer were separated from the red surface, crystals of red pigment particles and minerals were found on the red surface. Through SEM-EDS, Raman estimates that the red pigment is Among soil pigments with iron oxide(Fe2O3) as the main color development source, Red Ocher(Fe2O3). A band characteristic of the Urushiol polymer was detected in the FTIR-ATRspectra(4000∼600cm-1), GC-MS analysis confirmed the presence of the benzenemethanol-2-prophenyl, 4-heptylphenol, 1-tetracecanol, heptafluorobutyric texidecane, all of which are the ingredients of the directional structure of the lacquer present in the red layer. Therefore, it seemed that the three burnished red pottery: Jeoksaekmaoyeonwan pottery(Neolithic age burnished red pottery), Dandomaoyeonwan pottery(bronze age burnished red pottery) and the Jeoksaekmaoyeongajimun pottery(bronze age burnished red pottery) made by mixing minerals and Red Ocher(Fe2O3), with lacquer.

Diffusion Measurements Using FT-IR ATR Spectroscopy: Lubricant Diffusion in Polypropylene

2002 ◽  
Vol 56 (4) ◽  
pp. 509-514 ◽  
Author(s):  
Xiaohua Yi ◽  
Karen Nerbonne ◽  
John Pellegrino
Keyword(s):  
Current Model ◽  
Mineral Oil ◽  
Attenuated Total Reflection ◽  
Lubricant Layer ◽  
Polymer Interfaces ◽  
Time Resolved ◽  
Polymer Sample ◽  
Ft Ir ◽  
Atr Spectroscopy ◽  
Poly Propylene

We present an experimental method for measuring diffusion of lubricants (or any highly viscous fluid) in polymers using Fourier transform infrared (FT-IR) attenuated total reflection (ATR) spectroscopy. Unlike the conventional FT-IR ATR diffusion measurement, in which a polymer sample is sandwiched between the penetrant and an internal reflection element (IRE), in this method, a thin layer of penetrant (for example, a lubricant) is sandwiched between the IRE and the polymer sample. This allows accurate control and measurement of the thickness of the lubricant layer, which, in turn, facilitates subsequent data analysis. The diffusion is studied by monitoring the time-resolved change in absorbance of either a unique polymer or penetrant band. A feature of this new method is that it can provide an estimate of solubility, as well as an estimate of the diffusivity of the penetrant in the polymer. Using this method, we studied the diffusion of mineral oil and a commercial fluorocarbon ether lubricant (Krytox® 143AC‡) in poly(propylene) (PP) film at room temperature. The experimental data was modeled using a Fickian model with impermeable and saturated boundary conditions applied at the IRE/lubricant and lubricant/polymer interfaces, respectively. The diffusivity and solubility of mineral oil in PP were found to be 1.34 ± 0.35 (×10−10) cm2/s and 0.77 ± 0.13 (×10−2) g/g of PP, respectively. The current model was unable to quantitatively describe the diffusion of the Krytox® 143AC in the PP, possibly due to excessive swelling.

Scientific Analysis of Metal Objects and Metallurgical Remains from Kastri, Kythera

2007 ◽  
Vol 102 ◽  
pp. 219-238 ◽  
Author(s):  
Cyprian Broodbank ◽  
Thilo Rehren ◽  
Antonia-Maria Zianni
Keyword(s):  
Bronze Age ◽  
Preliminary Information ◽  
Surface Survey ◽  
Scientific Analysis ◽  
The 1960S ◽  
New Evidence ◽  
The Bronze Age ◽  
Late Roman

Scientific analysis of samples takes from metal objects and metallurgical products excavated during the 1960s at Kastri on Kythera provide new evidence concerning, variously, the Aegean metals trade and metallurgy on Kythera. The samples date to the Second Palace (Neopalatial), Classical and Late Roman periods. The Bronze Age material comprises fragments of copper ingots and silver cups, neither of which metal is locally available in Kythera, and the later material relates largely to local smelting and possibly smithing of iron, whose origin is uncertain. These activities are related to preliminary information concerning the distribution at each period of metallurgical activity across the island that has been generated by the intensive surface survey of the Kythera Island Project.

scholarly journals Determination of Polymerization Degree of Maltooligosaccharides by FT-IR/ATR Spectroscopy.

2001 ◽  
Vol 48 (6) ◽  
pp. 401-408 ◽  
Author(s):  
Mikihito KANOU ◽  
Atsushi HASHIMOTO ◽  
Yasuhiko SHIINOKI ◽  
Kensuke ITO ◽  
Yoshitaka MOTONAGA ◽  
...  
Keyword(s):  
Polymerization Degree ◽  
Ft Ir ◽  
Atr Spectroscopy

scholarly journals The circulation and consumption of Red Lustrous Wheelmade ware: petrographic, chemical and residue analysis

2005 ◽  
Vol 55 ◽  
pp. 25-59 ◽  
Author(s):  
Carl Knappett ◽  
Vassilis Kilikoglou ◽  
Val Steele ◽  
Ben Stern
Keyword(s):  
Gas Chromatography ◽  
Bronze Age ◽  
Residue Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Plant Oils ◽  
Late Bronze Age ◽  
East Mediterranean ◽  
Fabric Analysis ◽  
Northern Cyprus ◽  
Scientific Analysis

AbstractRed Lustrous Wheelmade ware is one of the most recognisable classes of pottery from the Late Bronze Age of the east Mediterranean. Yet both its production source and the nature of its contents and use remain a source of some debate. These questions are tackled here through an intensive programme of scientific analysis involving 95 samples of Red Lustrous Wheelmade ware and related wares from seven sites in Turkey, Cyprus and Egypt. Petrography and instrumental neutron activation analysis are combined in the study of the ceramic fabrics, with a view to specifying the source of this ware; while gas chromatography and gas chromatography-mass spectrometry are used to analyse absorbed and visible residues in and on the sherd samples, in the hope of shedding light on vessel contents and possible use. The results of the fabric analysis show the ware to be extremely homogeneous, indicative of a single source: northern Cyprus is at present the most likely candidate, although further analysis, particularly of clay samples from the region in question, would certainly be desirable. The residue analysis suggests that Red Lustrous Wheelmade ware might have been used to carry some kind of plant oils, possibly perfumed, and that in some instances the vessel interior was coated with beeswax as a sealant.

Excavations at Mad Mans Window, Glenarm, Co. Antrim: Problems of Flint Exploitation in East Antrim

1992 ◽  
Vol 58 (1) ◽  
pp. 77-106 ◽  
Author(s):  
P. C. Woodman
Keyword(s):  
Bronze Age ◽  
Narrow Strip ◽  
North East ◽  
The North ◽  
Flat Side ◽  
Neolithic Age ◽  
North Eastern ◽  
Basalt Plateau ◽  
The Bronze Age

This study examines the archaeological significance of the material from a group of Neolithic chipping floors rescued during the rebuilding of the Antrim coast road, at Mad Mans Window, south of Glenarm, Co. Antrim. It shows that the lithic production strategies vary significantly between assemblages although it is presumed that they are all Neolithic in date and come from the same area of coast. It is apparent that flint axe production was of limited importance on these sites and that in spite of the abundance of flint available along the Antrim coast, relatively few polished flint axes were manufactured. Instead the numerous flint caches found in adjacent parts of the north-east of Ireland tend to produce scrapers and blades. Hoards containing arrowheads may be confined to the Bronze Age.Around 300 polished flint axes and roughouts are known from Ireland. These are frequently small and only partially polished. A limited number of highly polished axes with ground flat side facets have been designated sub-type A. The tendency to use porcellanite rather than flint for axe manufacture may be due to its ability to withstand robust shock.During the last 100 years, the role of flint as a key resource in the stone age of north-eastern Ireland has always been recognized but this has usually led to an uncritical assumption as to the paramount importance of flint. Work in recent years has shown that its significance in attracting and retaining Mesolithic settlement may have been over-emphasized.The role of the flint industries in the Irish Neolithic in this region has never been properly assessed, either in relation to older Mesolithic manufacturing traditions or in the broader context of supply to the Neolithic communities of this part of Ireland.In particular, good or even reasonable quality flint is usually only exposed in Cretaceous outcrops along a narrow strip on the edge of the basalt plateau and, therefore, has a very limited availability in parts of Co. Antrim as well as parts of Counties Down and Deny. As a contrast, erratic and beach flint is available in some quantity down the east coast of Ireland from Co. Down to Wexford. A second potential constraining factor is that unlike Britain, where flint was exploited for axe manufacture in the east and other rocks in the west, flint sources and porcellanite for axe manufacturing are both found adjacent to each other in the same corner of Co. Antrim. In particular, a number of more substantial chipping floors of Neolithic age are known, e.g. the opencast quarry sites at Ballygalley Head. The purpose of this study is to assess the role of flint production on the Antrim coast with particular reference to its significance in the Neolithic. This topic will be developed in the context of an analysis of the material found at Mad Mans Window near Glenarm.

Quantitative Analysis of Glucose Syrups by ATR/FT-IR Spectroscopy

1993 ◽  
Vol 47 (8) ◽  
pp. 1187-1191 ◽  
Author(s):  
F. De Lène Mirouze ◽  
J. C. Boulou ◽  
N. Dupuy ◽  
M. Meurens ◽  
J. P. Huvenne ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Attenuated Total Reflectance ◽  
Infrared Spectrometry ◽  
Regression Methods ◽  
Ft Ir ◽  
The Fourier Transform ◽  
Main Components ◽  
Atr Spectroscopy ◽  
Time Required ◽  
Ft Ir Spectroscopy

Thanks to what has been achieved by the Fourier transform, infrared spectrometry can now become a state-of-the-art device in quality control laboratories if we consider its precision and the gain in time it ensures in comparison to results from traditional analytical methods such as chromatography. Moreover, the increasing number of new mathematical regression methods such as Partial Least-Squares (PLS) regression allows multicomponent quantitative analysis in mixtures. For instance, the analysis of the three main components (glucose, maltose, and fructose) of the dry substance which represents about 70% (w/v) in glucose syrups can be done with the use of Attenuated Total Reflectance (ATR) spectroscopy with a precision in the region of 3 to 5%, whereas the time required to obtain an analysis report is about five minutes. The high similarity between the glucose and the maltose may make the analysis difficult.

scholarly journals Changes in Structure and Content Humic Substances in Soil During the Laboratory Simulated Fires

2016 ◽  
Vol 11 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Maroš Sirotiak ◽  
Alica Bartošová
Keyword(s):  
Humic Substances ◽  
Chemical Structure ◽  
Fulvic Acids ◽  
Spectroscopy Technique ◽  
Humic And Fulvic Acids ◽  
Chemical Laboratory ◽  
Laboratory Methods ◽  
Conventional Fractionation ◽  
Ft Ir ◽  
Atr Spectroscopy

Abstract The paper deals with the process of thermal degradation of humic substances in soil samples exposed to increased temperature. To determine the basic properties of humic substances, humic and fulvic acids are used conventional fractionation chemical laboratory methods. To determine changes in the chemical structure, the method of use of FT-IR ATR spectroscopy technique.

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