Method for detecting volatile organic compounds in cigarette tipping paper printing ink
A technology for volatile organic compounds and cigarette tipping paper, which is used in measuring devices, instruments, scientific instruments, etc., can solve the problem of not having a more comprehensive test, and achieves good precision, high degree of operation automation, and recovery rate. high effect
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[0015] 2. Preparation of samples to be tested
[0016] After shaking the ink sample evenly, use a 100 μL pipette gun to pipette 1 drop of the sample into a 20 mL headspace bottle, read the weight, accurate to 0.001 g, add 100 μL matrix corrector triacetin, and seal it for testing.
[0017] 3. Instruments and conditions
[0018] 1) Static headspace instrument conditions
[0019] Sample equilibration temperature 85°C; sample loop temperature 105°C; transfer line temperature 125°C. ; Sample equilibrium time 48min; sample bottle pressurization pressure 138kPa; pressurization time 0.2min; inflation time 0.2min; sample loop equilibrium time 0.05min;
[0020] 2) Gas chromatography conditions
[0021] The chromatographic column is a VOC capillary column with a specification of 60m×0.32mm×1.8μm; the carrier gas is helium; the inlet temperature is 160°C; the split ratio is 20:1; the column flow rate is 2.0mL / min; ℃, keep for 2min, then increase to 180℃ at the rate of 4℃ / min, and the...
Embodiment 1
[0042] Select one ink sample for black, red and brown cigarette tipping paper respectively, shake the ink samples evenly, pipette 1 drop of the sample into a 20mL headspace bottle with a 100μL pipette gun, and read the weight. Accurate to 0.001g, add 100 μL matrix corrector glycerol triacetate, seal and perform headspace gas phase detection. The measurement conditions are as follows:
[0043] Static headspace instrument conditions: sample equilibrium temperature 85°C; sample loop temperature 105°C; transfer line temperature 125°C. ; Sample equilibrium time 48min; sample bottle pressurization pressure 138kPa; pressurization time 0.2min; inflation time 0.2min; sample loop equilibrium time 0.05min;
[0044] Gas chromatography conditions: the chromatographic column is a VOC capillary column, the specification is 60m×0.32mm×1.8μm; the carrier gas is helium; the inlet temperature is 160°C; the split ratio is 20:1; the column flow rate is 2.0mL / min; : The initial temperature is 40°...
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