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sklademVydáno: 1993
ISO 9964-2:1993
ISO 9964-2:1993-Water quality — Determination of sodium and potassium-Part 2: Determination of potassium by atomic absorption spectrometry
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Označení normy: | ISO 9964-2:1993 |
Počet stran: | 4 |
Vydání: | 1 |
Vydáno: | 1993 |
DESCRIPTION
ISO 9964-2:1993
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.