ハンディー全反射蛍光X線分析装置による清涼飲料水,環境水,プラスチック製玩具の浸出水中の微量元素分析

概要

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A portable total reflection X-ray fluorescence spectrometer was applied to the analysis of trace elements contained in commercial bottled oolong tea, water in a pool on unpaved ground, and a leaching solution of a plastic toy coated with a metallic foil in order to discuss the possibility of applying to analyses of soft drinks, environmental water, and leaching solutions of products for daily use by using this spectrometer. Sulfur, potassium, and manganese were detected in the oolong tea. Sulfur, potassium, calcium, and iron were detected in the water. Manganese was detected in the leaching solution. These elements were quantified by an internal standard method. The quantified concentrations were a few mg/L to a few hundred mg/L, which were equivalent to several tens of nanograms to several micrograms of each element in the dry residues of the samples. This portable spectrometer performed multi-elemental simultaneous quantification by the simple method, and it was possible for it to perform quantification approximately.
2008-02-05