ISO 11438-4:1993 镍铁 用电热原子吸收光谱法对痕量元素含量 第4部分:锡含量的测定
标准编号:ISO 11438-4:1993
中文名称:镍铁 用电热原子吸收光谱法对痕量元素含量 第4部分:锡含量的测定
英文名称:Ferronickel — Determination of trace-element content by electrothermal atomic absorption spectrometric method — Part 4: Determination of tin 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286,3 nm波长下测量试验溶液中锡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。适用于镍铁中锡含量在1.0 g/t至10.0 g/t范围内。
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 tin in the test solution at a wavelength of 286,3 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 tin contents in the range of 1,0 g/t to 10,0 g/t in ferronickel.
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