This part specifies the principles, reagents, instruments, equipment, sample processing, analysis steps and result calculations for the determination of cadmium content in waste chemicals using graphite furnace atomic absorption spectrophotometry. This section is suitable for the determination of cadmium content in electroplating waste liquid, waste water (liquid), chemical waste residue, paint residue and other waste chemicals; it can also be used for the determination of cadmium content in soil or sludge. The cadmium content in the tested liquid was 0.02 μg/L~2 μg/L.
HG/T 4550.1-2013 Referenced Document
GB/T 6682-2008 Water for analytical laboratory use.Specification and test methods
HG/T 3696.2 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 2: Preparations of standard solutions for impurity
HG/T 3696.3 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 3: Preparations of reagent solutions
HG/T 4550.1-2013 history
2013HG/T 4550.1-2013 Determination of cadmium in the waste chemicals.Part 1:Graphite furnace atomic absorption spectrophotometric method