| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Outline of Final Research Achievements |
A micro-glass bead (approximately 3.5 mm diameter and 0.8 mm thickness), using a minimal amount (1.1 mg) of a powdered archaeological sample, is proposed for the X-ray fluorescence (XRF) determination of 10 major oxides (Na2O, MgO, Al2O3, SiO2, P2O5, K2O, CaO, TiO2, MnO, and total Fe2O3) and 4 minor elements (Ni, Zn, Rb, and Sr) in precious and limited siliceous samples, namely ancient pottery. Calibration curves for this method were obtained using synthetic standards, prepared by compounding chemical reagents (oxides, carbonates, and diphosphates) containing the analytes. The calibrations had good linearity and lower limits of detection that ranged from tens to hundreds of μg g－1. This minimal-scale analysis was able to accurately determine the 14 components in geochemical references. Using the present method, we analyzed three archeological objects from Japan.
|
