1 Scope
This standard specifies the graphite furnace atomic absorption spectrum determination method for chromium in foods.
This standard is applicable to the content determination of chromium in various foods.
2 Principle
After the specimen is subjected to digestion treatment, graphite furnace atomic absorption spectrometry shall be adopted to determine the absorption value at 357.9 nm; within the range of certain concentration, the absorption value shall be quantified by comparing with standard series solution.
3 Reagents and Materials
Foreword i
1 Scope
2 Principle
3 Reagents and Materials
4 Instrument and Equipment
5 Analysis Procedure
6 Expression of Analysis Result
7 Accuracy
8 Others
Appendix A Reference Conditions for Sample Determination
