1 Scope
This standard specifies the method for determination of solvent residual quantity in edible vegetable oil and meal for food processing.
This standard is applicable to determination of solvent residual quantity in edible vegetable oil and meal for food processing.
2 Terms and Definitions
For the purpose of this document, the following terminologies and definitions apply.
2.1 base vegetable oil
belonging to the same species with the tested sample; the refined vegetable oil obtained by refining procedure (deodorization and decoloration etc.), or the vegetable oil via ultrasonic degassing at room temperature, the solvent residual quantity of which shall be lower than the detection limit
2.2 base meal
belonging to the same species with the tested sample; the meal for food processing completely removing solvent residual through deep processing or heating in laboratory, the solvent residual quantity of which shall be lower than the detection limit
3 Principle
Solvent residuals in the sample will spread to gas phase in sealed container and dynamic balance of concentration will be achieved between gas phase and liquid phase; inspect content of the solvent residuals in upper gas phase by headspace gas chromatography, and the actual content of solvent residuals in to-be-tested sample can be calculated.
Foreword i
1 Scope
2 Terms and Definitions
3 Principle
4 Reagents and Materials
5 Apparatus and Equipment
6 Analysis Procedures
7 Expression of Analysis Result
8 Precision
9 Others
Appendix A Gas chromatogram for No. 6 Solvent Standard
1 Scope
This standard specifies the method for determination of solvent residual quantity in edible vegetable oil and meal for food processing.
This standard is applicable to determination of solvent residual quantity in edible vegetable oil and meal for food processing.
2 Terms and Definitions
For the purpose of this document, the following terminologies and definitions apply.
2.1 base vegetable oil
belonging to the same species with the tested sample; the refined vegetable oil obtained by refining procedure (deodorization and decoloration etc.), or the vegetable oil via ultrasonic degassing at room temperature, the solvent residual quantity of which shall be lower than the detection limit
2.2 base meal
belonging to the same species with the tested sample; the meal for food processing completely removing solvent residual through deep processing or heating in laboratory, the solvent residual quantity of which shall be lower than the detection limit
3 Principle
Solvent residuals in the sample will spread to gas phase in sealed container and dynamic balance of concentration will be achieved between gas phase and liquid phase; inspect content of the solvent residuals in upper gas phase by headspace gas chromatography, and the actual content of solvent residuals in to-be-tested sample can be calculated.
Contents of GB 5009.262-2016
Foreword i
1 Scope
2 Terms and Definitions
3 Principle
4 Reagents and Materials
5 Apparatus and Equipment
6 Analysis Procedures
7 Expression of Analysis Result
8 Precision
9 Others
Appendix A Gas chromatogram for No. 6 Solvent Standard
