NEN 6433-1993 Water. Determination of antimony content by atomic absorption spectrometry (hydride generation technique). Destruction with nitric acid and hydrochloric acid
This standard describes a method for determining the antimony content of water using atomic absorption spectrometry. The standard applies to aqueous solutions from which particles larger than 0.45 \im have been removed. The detection limit depends on the device used; In general, antimony levels can be determined from 0.5 ng/l. The determination can be disturbed if the following elements are present in the sample above the given concentrations. Ash from 150 [ig/l Sn from 2 mg/l Other elements can also interfere, see the comment in Chapter 6. NOTE During the research carried out for the development of the standard, it turned out that it usually also applies to surface water from which the any sludge suspended therein has not been removed, in which case a total content is determined. However, it must be borne in mind that antimony, which is incorporated into, for example, a silicate matrix, will not always come into solution with the described method.
NEN 6433-1993 history
1993NEN 6433-1993 Water. Determination of antimony content by atomic absorption spectrometry (hydride generation technique). Destruction with nitric acid and hydrochloric acid