ISO 5961:1994 水的质量.镉的测定.火焰原子吸收光谱测定法

标准编号:ISO 5961:1994

中文名称:水的质量.镉的测定.火焰原子吸收光谱测定法

英文名称:Water quality — Determination of cadmium by atomic absorption spectrometry

发布日期:1994-01

标准范围

规定了测定镉的两种方法:在空气-乙炔火焰中使用原子吸收光谱法(AAS)(将酸化样品吸入火焰中,并在228,8 nm波长下测量镉浓度)和电热原子化AAS(将酸化样品注入电热原子化原子吸收光谱仪的电热石墨管中,并在228,8 nm波长下测量吸光度)。

Specifies two methods for the determination of cadmium: using atomic absorption spectrometry (AAS) in an air-acetylene flame (aspiration of the acidified sample into the flame and measurement of the cadmium concentration at a wavelength of 228,8 nm) and by electrothermal atomization AAS (injection of the acidified sample into an electrically heated graphite tube of an electrothermal atomization atomic absorption spectrometer and measurement of the absorbance at a wavelength of 228,8 nm).

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