Authors:S. Cebulak, A. Matuszewska, and A. Langier-Kuźniarowa
The paper presents the applicability of oxyreactive thermal analysis (OTA) for the investigation of different kinds of resins
both natural (recent and fossil) and synthetic. For comparative reasons and a more precise interpretation, along with OTA
infrared spectroscopy was used as a method commonly applied for the investigation of fossil resins. The results obtained prove
that the OTA method may be very useful for diversification of different kinds of resins. The parameter most valuable for the
preliminary characteristics of resins and the evaluation of their transformation was found to be the mass loss recorded on
TG curves in three definite temperature ranges.
, the so called “Amber Route”, ran to the north through the territories around the Neusiedler Lake, in those years still considered by Pliny geographically part of Noricum. 22 After crossing the Sava, the Drava and the Arrabo , this road reached the
: 11 hyacinths blue, transparent, biconical, globular and amorphous glass beads, 1 cylindrical amber bead of a cut base, a transparent blue glass bead twisted in spiral coils ( Fig. 4.8 ) , 43 amorphous coral and white calcite beads (the latter ones
Authors:András Markó, Alfréd Dulai, and Viola Dobosi
. Anderson , S. Beyries , M. Otte , H. Plisson . ERAUL 50. Liège 1993 , 243 – 254 .
Földvári 1992 = M. Földvári : Analysis of amber from Mogyorósbánya . ComArchHung 1992 , 16 – 17 .
Fülöp 1958 = J. Fülöp : A Gerecsehegység
2001 = A. Mastykova
: Amber beads with incised linear decoration in the Great Migration Period. In: E. Istvánovits— V. Kulcsár (eds): International Connections of the Barbarians of the Carpathian Basin in the 1
109Cd may be used as a radiolabel in tracer studies of Cd(II) because of the ease and efficiency with which it may be counted by liquid scintillation counting. It has been found that ppm solutions of Cd2+, spiked with109Cd, may be stored for at least 200 d, in either amber glass or polypropylene containers, without measurable container adsorption, at pH's of 5 or less. At pH's above 5, there is some evidence of container adsorption, particularly in the case of polypropylene containers. Amber glass is recommended if pH's between 5 and 7 must be used for storage.
Geophysical prospecting and surveys carried out in 2009–2010 in Nemescsó (County Vas, Hungary) revealed evidence of a structure with stone foundation walls located along the Amber Road, which can be interpreted as a road station. This building, with partially roofed court and corner risalits, can be directly compared with the street station at Sorokpolány. Both stations are located at a distance of 12.6 km (or 8.5 Roman miles) from Savaria/Szombathely along the Amber Road, with Nemescsó in the north of the Colonia and Sorokpolány in the south. Based on the find materials from the surveys, it can be tentatively suggested that the most intensive usage of the street station at Nemescsó took place during a time period between 160/180-250/270 A.D.
Authors:R. Filho, P. Franco, E. Conceição, and M. Leles
A formulation of nifedipine tablets was prepared in the present research. The tablets were conditioned in amber-colored glass
containers and placed in a climatized room at 40°C and relative humidity of 75% for 180 days. Differential scanning calorimetry
(DSC) and thermogravimetry (TG) were used in order to evaluate the thermal properties of nifedipine, the excipients and two
well-known nifedipine degradation products. The results demonstrated that there is no evidence on the interaction between
nifedipine and excipients, or degradation products.
Solutions of Pb2+ at ppb to ppm levels were tagged with210Pb and then counted from time to time over a period of one year to measure the extent of container adsorption. All count rates for samples which were acidified with HNO3 were at least 90% of their initial values, even after one year of storage. Amber glass containers proved to be superior to polypropylene for 0.1 and 1.0 ppm Pb2+ solutions; but below 0.1 ppm, polypropylene was superior. For non-acidified samples, the count rate dropped rapidly within the first two months, and then declined more gradually thereafter, with polypropylene generally superior.
This paper deals the Iron Age metalworks found in South Transdanubia, southern part of the Great Plain and in the Srem area. The objects are known from hoards (Szárazd-Regöly, Čurog, Hrtkovci, Židovar), inhumation and cremation burials. The gold and silver jewellery (masked gold beads, wheel shaped gold amulets, crescent decorated gold beads, silver ornaments, crossbow silver fibulae), bronze astragalos belts, bronze rings, amber beads show the influence of Illyrian-Thracian workshops in the Northern Balkan. The objects can be dated to 4th–3rd centuries B.C.