1 Scope
This standard specifies determination methods of diaminomethylbezen of complex for food packaging material.
This standard is applicable to the determination of diaminomethylbezen of complex for food packaging material.
Detection limit of this method is 0.002 mg/L.
2 Principle
After leaching treatment of diaminomethylbezen of the sample in boiling water, add trifluoroacetic anhydride (TFAA) for derivatization; inject the derivatives into gas chromatograph and determined with electron capture detector. The response value proportional to diaminomethylbezen content in a certain concentration range, it can be qualitative and quantitative measured.
3 Reagents
1 Scope
This standard specifies determination methods of diaminomethylbezen of complex for food packaging material.
This standard is applicable to the determination of diaminomethylbezen of complex for food packaging material.
Detection limit of this method is 0.002 mg/L.
2 Principle
After leaching treatment of diaminomethylbezen of the sample in boiling water, add trifluoroacetic anhydride (TFAA) for derivatization; inject the derivatives into gas chromatograph and determined with electron capture detector. The response value proportional to diaminomethylbezen content in a certain concentration range, it can be qualitative and quantitative measured.
3 Reagents
