VOC Emission Test Conditions - Gas Chromatography

What are the test conditions for "Volatile Organic Compound (VOC) Release Test Conditions - Gas Chromatography":
A.1 Gas Chromatography
A.1.1 Thermal Desorption Conditions
A.1.1.1 Adsorption tube desorption temperature: 280 ℃;
A.1.1.2 Adsorption tube desorption time: 15 min;
A.1.1.3 Desorption gas flow rate: 50 mL/min;
A.1.1.4 Cold trap cooling temperature: -100 ℃;
A.1.1.5 Cold trap heating rate: 40 ℃/s;
A.1.1.6 Cold trap desorption temperature: 300 ℃;
A.1.1.7 Cold trap desorption time: 15 min;
A.1.1.8 Transmission line temperature: 300 ℃;
A.1.1.9 Split ratio: Determine the split ratio based on the concentration.
A.1.2 Chromatographic conditions
A.1.2.1 Chromatographic column: 100% polydimethylsiloxane, 60 m×0.32 mm×0.5 μm;
A.1.2.2 Heating program: 65 ℃ for 18 min, then increase the temperature to 210 ℃ at 30 ℃/min, maintain for 5 min, then increase the temperature to 280 ℃ at 30 ℃/min, maintain for 5 min;
A.1.2.3 Detector temperature: 300 ℃;
A.1.2.4 Carrier gas: nitrogen, 1 mL/min.
A.1.3 Chromatographic graph
The gas chromatographic retention time graph of the working solution is shown in Figure D.1

Note:
1——Methanol: 7.829 min (methanol is the diluent solvent of the working solution);
2——n-hexane: 9.744 min;
3——toluene: 16.061 min;
4,5——alcohol ester: 28.496 min, 28.629 min;
6——n-hexadecane: 30.883 min.
Figure A.1 Gas chromatographic retention time diagram of the working solution