ISO 11438-5:1993 镍铁 用电热原子吸收光谱法对痕量元素含量 第5部分：碲含量的测定

标准编号：ISO 11438-5:1993

中文名称：镍铁 用电热原子吸收光谱法对痕量元素含量 第5部分：碲含量的测定

英文名称：Ferronickel — Determination of trace-element content by electrothermal atomic absorption spectrometric method — Part 5: Determination of tellurium 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，用配备石墨炉电热雾化器的原子吸收光谱仪测量214,3 nm波长下试样溶液中碲光谱的共振线能量吸收，并用ISO 11438-1中所述的标准加入法进行校准。适用于镍铁中0.3 g/t至2.0 g/t范围内的碲含量。

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 tellurium in the test solution at a wavelength of 214,3 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 tellurium contents in the range of 0,3 g/t to 2,0 g/t in ferronickel.

标准预览图