ISO 11438-8:1993 镍铁 用电热原子吸收光谱法对痕量元素含量 第8部分：铟含量的测定

标准编号：ISO 11438-8:1993

中文名称：镍铁 用电热原子吸收光谱法对痕量元素含量 第8部分：铟含量的测定

英文名称：Ferronickel — Determination of trace-element content by electrothermal atomic absorption spectrometric method — Part 8: Determination of indium content

发布日期：1993-11

标准范围

规定方法的原理是将试样溶解在硝酸中，使用配备石墨炉电热雾化器的原子吸收光谱仪，在325,6 nm波长下测量试验溶液中铟光谱的共振线能量吸收，并使用ISO 11438-1中所述的标准加入法进行校准。适用于镍铁中0.5 g/t至2.5 g/t范围内的铟含量。

The principle of the method specified is dissolution of a test portion in nitric acid, measurement of the absorption of the resonance line energy from the spectrum of indium in the test solution at a wavelength of 325,6 nm by an atomic absorption spectrometer fitted with a graphite furnace electrothermal atomizer, calibration by the standard additions method described in ISO 11438-1. Applies to indium contents in the range of 0,5 g/t to 2,5 g/t in ferronickel.

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