ISO 11438-7:1993 镍铁 用电热原子吸收光谱法对痕量元素含量 第7部分：银含量的测定

标准编号：ISO 11438-7:1993

中文名称：镍铁 用电热原子吸收光谱法对痕量元素含量 第7部分：银含量的测定

英文名称：Ferronickel — Determination of trace-element content by electrothermal atomic absorption spectrometric method — Part 7: Determination of silver content

发布日期：1993-11

标准范围

规定方法的原理是将试验部分溶解在硝酸中，使用配备石墨炉电热雾化器的原子吸收光谱仪在328,1 nm波长下测量试验溶液中银光谱的共振线能量吸收，并使用ISO 11438-1中描述的标准加入法进行校准。适用于镍铁中1.0 g/t至6.0 g/t范围内的银含量。

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 silver in the test solution at a wavelength of 328,1 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 silver contents in the range of 1,0 g/t to 6,0 g/t in ferronickel.

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