Analytical sample drying method and drying apparatus

Abstract

A soil for metal analysis having a high water content percentage of 40% or above is dried to a water content percentage of 20% or below within a short period of time. A filter paper (5) is disposed on an internal bottom face plate (2) of nutsche (1). Powder of a highly water absorbent resin material (6) is uniformly spread (charged) on the superior surface thereof. Further, a filter paper (7) is disposed thereon. A soil sample of high water content percentage is stuffed on the superior surface thereof to thereby attain predrying to a water content of about 30%. Thereafter, ethanol is added to the predried soil sample, agitated and placed on a reception pan (38). The reception pan (38) is put in a drying chamber (37). Water is fed into a reaction vessel (42) filled with calcium oxide or barium oxide by the use of a syringe (43) to thereby react the calcium oxide or barium oxide with water.The reception pan (38) is heated by the then generated reaction heat to thereby attain postdrying to a water content percentage of 20% or below.

Description

technical field [0001] The invention relates to a drying treatment method and a drying treatment device for analysis samples, which are used to remove fluorescence x-ray analysis, total reflection fluorescence x-ray analysis, infrared analysis, atomic absorption analysis, luminescence analysis, gas chromatography analysis, Vaporizable substances, including moisture, contained in analysis samples used in various chemical analyzes such as gravimetric analysis. Background technique [0002] Generally, when a sample is analyzed by various analysis methods such as fluorescence x-ray analysis and total reflection fluorescence x-ray analysis, for example, taking fluorescence x-ray analysis and total reflection fluorescence x-ray analysis as examples, water in the composition Attenuate x-rays, thereby reducing the intensity of x-rays. Therefore, when directly analyzing the soil collected from the field, since the moisture contained in the soil is various, stable measured values ​​ca...

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Problems solved by technology

[0002] Generally, when a sample is analyzed by various analysis methods such as fluorescence x-ray analysis and total reflection fluorescence x-ray analysis, for example, taking fluorescence x-ray analysis and total reflection fluorescence x-ray analysis as examples, water in the composition Attenuate x-rays, thereby reducing the intensity of x-rays. Therefore, when directly analyzing the soil collected from the field, since the moisture contained in the soil is various, stable measured values ​​cannot be obtained, and there is a problem of poor reliability. The problem

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