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A Study of Chemical, Mineral Compositions (of Some Metals) and Natural Radioactivity in Porcelain and Ceramic Dinner Ware

机译:瓷器和陶瓷餐具中的化学,矿物组合物(一些金属)和天然放射性的研究

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摘要

Fifteen Porcelain and Ceramic Dinner Wares samples (collected from local commercial suppliers—Jeddah Saudi Arabia) were studied applying X-Ray Diffraction and Atomic Absorption techniques were used to study the Chemical, Mineral, Compositions Concentrations (of Some Metals). In addition, the Natural Radioactivity measurements of 226Ra, 232Th and 40K, was used by a high-purity germanium (HPGe) detector. X-ray diffraction results showed that the major mineral constituents of 15 samples were quartz (SiO2) (except one), minor and trace elements vary from sample to sample. Atomic absorption spectroscopy results of the concentrations for (Al, Pb, Bi, U, Th and K) in (ppm) showed that Al2O average was 10.3 (ppm) (10%) less than the acceptable value. PbO, its average was 1.65 ppm which was slightly greater than the allowed value 1.35 ppm. Bi concentrations for all samples were lower than (DL 238U, 232Th and 40 K were (83.83, 91.05 and 751.07) Bq/kg dry. The radium equivalent activity concentration Raeq (Bq/kg) (302.61) was less than recommended value (370), gamma dose rate D (nGy/h) average (140.15) was much higher than the recommended value (60) (UNSCEER). Deff (mSv/year) and Hix were below the published admissible limit ≤ 1 and the risk is negligible. This study offers needed information for consumers at exposure risk and is useful to be found in terms of radiation protection.
机译:十五瓷和陶瓷晚餐洁具样品(来自本地商业供应商 - 吉达沙特阿拉伯收集)进行了研究采用X射线衍射和原子吸收技术被用于研究的化学,矿物,成分含量(某些金属的)。此外,高纯度锗(HPGE)检测器使用226ra,232th和40k的天然放射性测量。 X射线衍射结果表明,15个样品的主要矿物成分是石英(SiO 2)(除了一个),次要和微量元素因样品而异。 (PPM)中(PPM)的浓度(Al,Pb,Bi,U,Th和K)的原子吸收光谱结果表明,Al2O平均值为10.3(ppm)(ppm)(10%)小于可接受的值。 PBO,其平均为1.65ppm,略大于允许的1.35 ppm。所有样品的BI浓度低于(DL 238U,232h和40k)(83.83,91.05和751.07)Bq / kg干燥。镭递力浓度Raeq(Bq / kg)(302.61)小于推荐值(370 ),γ剂量率d(ngy / h)平均值(140.15)远高于推荐的值(60)(未取消)。DEFF(MSV /年)和HIX低于公布的可接受限额≤1,风险可忽略不计。本研究提供了曝光风险的消费者所需的信息,并且在辐射保护方面可用。

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