Inaa Ceramic Analysis

Experimental errors in the analysis 5 the data set was studied by means of modified mahalanobis filter to verify the effect of the temper in the concentration data.

Inaa ceramic analysis.

Chemical analysis quality chemical analysis is important to a broad range of clients and chemistry is our strength. The probability of a neutron interacting with a nucleus is a function of the neutron energy. Sample preparation and description of the method. This volume presents case studies of southwestern ceramic production and distribution in which inaa is used as the primary analytical technique.

Reliance on compositional data from instrumental neutron activation analysis inaa to study production and exchange practices of indigenous ceramics. Indigenous ceramics from the continent of south america range from the common to the artistic with many types characterized by symbolic religious imagery. Ceramic is one of the most complex and ubiquitous archaeomaterials in the archaeological record. The use of instrumental neutron analysis inaa in ceramic research in the american sothwest has become widespread over the last ten years.

The gamma rays emitted during the decay of the 59 fe nucleus have energies of 142 4 1099 2 and 1291 6 kev and these gamma ray energies are characteristic for this nuclide. We have a number of analytical techniques at our disposal and thus can meet a broad spectrum of needs offer sample flexibility and a high degree of accuracy. This paper discusses the results of a recent compositional analysis by inaa of 225 samples of ceramics sherds excavated from the great plaza of huacas de sicán. The analysis revealed a limited number 3 of compositional groups and a high rate of arsenic and uranium in one group.

At least fifty major minor and trace elements spanning the main geochemical element groups. The ceramic powder samples were. Instrumental neutron activation analysis inaa this technique was used to measure the elemental content like iron potassium and so on of our zatopec ceramic samples. 58 fe is a stable isotope of iron while 59 fe is a radioactive isotope.

All 161 ceramic samples were analyzed via inaa. Once measured the composition of each sherd is compared against a database of previously analyzed samples from the united states and elsewhere. These studies use provenance determination to explore such issues as exchange migration social identity and. Instrumental neutron activation analysis inaa is the simplest and most widely used form of naa.

In some areas pottery was mass produced for the general population as well as the elite. It occurs around the world and through time in almost every culture and context from building. It involves the direct irradiation of the sample meaning that the sample does not undergo any chemical separation or treatment prior to detection. The oxford handbook of archaeological ceramic analysis draws together topics and methodologies essential for the socio cultural mineralogical and geochemical analysis of archaeological ceramic.

Instrumental neutron activation analysis inaa is one of the most widely used analytical methods for bulk chemical characterization of ceramic pastes owing to its relatively simple sample preparation procedures the small sample mass required and low detection limits for most elements of interest.