2015 Fiscal Year Final Research Report
X-ray fluorescence determination with micro-glass beads using one-milligram of archaeological sample
| Project/Area Number |
26750099
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Cultural assets study and museology
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| Research Institution | Meiji University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 蛍光 X 線分析 / ガラスビード / 微量試料 / 考古遺物 / 土器 / 文化財 |
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| 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.
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| Free Research Field |
分析化学
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