Method for measuring content of 1,6-hexanediol diacrylate
A technology of hexanediol diacrylate and content, which is applied in the field of analysis and detection, can solve problems such as inability to meet detection requirements, inaccurate quantification, loss of production enterprises, etc., and achieve high recovery rate and precision, good dissolution effect, and accurate quantification Effect
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Embodiment 1
[0029] The mensuration of 1,6-hexanediol diacrylate content in the plastic sample of embodiment 1
[0030] (1) Analysis steps
[0031] Take 50g of plastic samples, first crush them into particles of about 1cmx1cmx1cm, then use a high-efficiency cutting pulverizer for coarse powder, and then use a high-efficiency cutting pulverizer for low-temperature fine powder. The samples were crushed twice, the first sample was discarded, and the second sample was taken. The pulverized sample powder passed through a standard sieve of 80 or 100 mesh. Weigh 1.0028g and 1.0012g samples respectively into a Soxhlet extractor, add 20mL of dichloromethane with a volume ratio of 1:2, extract and reflux at 50°C for more than 4 hours, cool the extract to room temperature, and pass through 0.22μm nylon Membrane filtration, the filtrate is analyzed by gas chromatography-mass spectrometry;
[0032] (2) Chromatography and mass spectrometry parameters
[0033] Gas chromatographic conditions, adopt ch...
Embodiment 2
[0039] Embodiment 2 plastic sample 1, the standard substance of 6-hexanediol diacrylate adds and measures
[0040] (1) Analysis steps
[0041] Take the 1,6-hexanediol diacrylate negative sample in Example 1. Weigh six samples of about 1g into a 50mL glass colorimetric tube or Soxhlet extractor, add 0.1mL each of 1000μg / mL 1,6-hexanediol diacrylate standard stock solution, after standing for a period of time, add 20mL volume Dichloromethane with a ratio of 1:2, Soxhlet extraction and reflux at 50°C for more than 4 hours, the extract was cooled to room temperature, filtered through a 0.22 μm nylon filter membrane, and the filtrate was analyzed by gas chromatography-mass spectrometry;
[0042] (2) Chromatography and mass spectrometry parameters
[0043] Gas chromatographic conditions, adopt chromatographic column DB-5MS, 30m×0.25mm×0.25μm, take 60℃ as the initial temperature of the column oven, raise the temperature to 130℃ at a rate of 10℃ / min, keep it for 3min, and set the te...
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