WARNING: Personnel using this standard should have practical experience in laboratory work. This standard does not address all safety issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 14506 specifies the method for the determination of zinc in silicate rocks. This section applies to the determination of the amount of zinc in silicate rocks, and also applies to the determination of the amount of zinc in soil and water system sediments. Measuring range: Sodium hydroxide-ammonium chloride bottom solution polarography method, zinc content above 25μg/g. Ethylenediamine base solution polarography method, zinc content of 20μg/g~2000μg/g. Flame atomic absorption spectrophotometry, zinc content of 5μg/g~200μg/g.
GB/T 14506.20-2010 Referenced Document
GB/T 14506.1 Methods for chemical analysis of silicate rocks.Part 1:Determination of hygroscopic water content
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 14506.20-2010 history
2010GB/T 14506.20-2010 Methods for chemical analysis of silicate rocks.Part 20:Determination of zinc content