ISO 9964-2-1993 水质 钠和钾的测定 第2部分:原子吸收光谱法测定钾

标准号：ISO 9964-2-1993
中文标准名称：水质 钠和钾的测定 第2部分:原子吸收光谱法测定钾
英文标准名称：Water quality; determination of sodium and potassium; part 2: determination of potassium by atomic absorption spectrometry
标准类型：C51
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：C51
国际标准分类号：13.060.50
适用范围：The principle of the method specified is adding a caesium chloride solution to the sample as an ionization suppressant, aspirating the sample directly into the air/acetylene flame of an atomic absorption spectrometer and measuring the absorbance at a wavelength of 766,5 nm. Applies to water samples with a mass concentration of potassium in the range from 5 mg/l to 50 mg/l. This range can be extended if other dilution factors are chosen.