X-ray fluorescence determination using glass bead samples and synthetic calibration standards for reliable routine analyses of ancient pottery
X-ray fluorescence determination using glass bead samples and synthetic calibration standards for reliable routine analyses of ancient pottery
复制标题
使用玻璃珠样品和合成校准标准进行 X 射线荧光测定，对古陶器进行可靠的常规分析
DOI：
10.1039/c6ay01061j
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发表时间：
2016
影响因子：
3.1
通讯作者：
Toshihiro Nakamura
中科院分区：
文献类型：
--
作者：
S. Ichikawa;Takehaya Matsumoto;Toshihiro Nakamura
开发了一种使用样品与通量比为1：10的玻璃珠样品的X射线荧光测定技术，用于可靠和常规分析考古学和地球化学样品（例如，陶器、粘土、岩石和土壤），以估计出处。通过复合化学试剂（氧化物、碳酸盐和二磷酸盐）来制备合成校准标准，以构建22种组分（Na2O、MgO、Al2O3、SiO2、P2O5、K2O、CaO、TiO2、MnO、Fe2O3、V、Cr、Ni、Cu、Zn、Rb、Sr、Y、Zr、Nb、Ba和Pb）的校准曲线。这些标准是模仿日本陶器的化学成分制作的。标准曲线线性良好，相关系数大于0.997。用三种地球化学标准物质对方法进行了验证。考虑到由分析值与推荐值之间的差异以及测量的标准偏差估计的不确定度，分析结果与推荐值吻合良好。新的方法产生了更准确的结果比那些通过半基本参数计算使用软件安装在XRF光谱仪。该方法用于测定20个绳纹陶器样品和10个粘土样品中的22种成分，从日本中台遗址出土。可靠的化学成分数据揭示了有关陶器起源的信息，包括使用的原粘土类型和来源。
An X-ray fluorescence determination technique using glass bead samples with 1:10 sample-to-flux ratios was developed for the reliable and routine analysis of silicic archaeological and geochemical samples (e.g., pottery, clay, rock, and soil) in order to estimate provenance. Synthetic calibration standards were prepared by compounding chemical reagents (oxides, carbonates, and diphosphate) to construct calibration curves for 22 components (Na2O, MgO, Al2O3, SiO2, P2O5, K2O, CaO, TiO2, MnO, Fe2O3, V, Cr, Ni, Cu, Zn, Rb, Sr, Y, Zr, Nb, Ba, and Pb). The standards were produced by imitation of the chemical compositions of Japanese pottery. The calibration curves showed good linearity with correlation coefficients greater than 0.997. The method was validated by assaying three geochemical reference materials. Considering the uncertainty that was estimated from the difference between the analytical and recommended values and the standard deviation of the measurement, the analytical results were in good agreement with the recommended values. The new method produced much more accurate results than those obtained by semi-fundamental parameter calculation using software installed on the XRF spectrometer. The proposed method was used to determine 22 components in 20 Jomon pottery samples and 10 clay samples excavated from the Nakatai site in Japan. The reliable chemical composition data revealed information about the pottery's origin, including the type of raw clay used and the provenance.