1 Thermal breaking test
Weigh 0.1 g of ethyl butyrate, liquify it in absolute ethanol, and weaken to volume in a 10 mL volumetric flask to prepare an option with a mass focus of 10 mg/mL. Load the pyrolysis tube with 1 ~ 2 mg of quartz woollen, compact it to a height of 5 mm, and fix it at a setting 2 mm from the upper end of the pyrolysis tube. Take 2 μL of the sample as well as location it on the quartz wool in the lysis tube, as well as position the lysis tube into the lysis instrument. Thermal cracking conditions are as follows:
After the splitting was completed, change to helium purging and also maintain the post-cracking procedure for 1 min; raise the temperature of the cool trap from -60 ° C to 280 ° C (5 min) for desorption, then carry out GC/MS analysis.
2 Manufacturing of example cigarettes
Equilibrate the empty cigarette for two days under the conditions specified in GB/T 16447-2004; prepare a service of ethyl butyrate with ethanol, include 20, 40 and 60 μg/ g into the empty cigarette equally, as well as maintain it secured for 48 hours, to generate No. 1 ~ 3 example cigarettes.
3 Analysis of 7 dangerous parts in flue gas
The release of 7 harmful elements consisting of carbon monoxide, HCN, NNK, B [a] P, crotonaldehyde, phenol as well as ammonia were checked according to pertinent conventional methods.
The boiling point of ethyl butyrate is 121 ~ 122 ℃. Thermal fracturing test outcomes reveal that greater than 98% of the total ion chromatogram area is stabilized to the ethyl butyrate model. According to the treatments of pyrolysis, including in blank cigarettes to examine the hazardous components of smoke as well as the organic toxicity of smoke, the outcomes of methodical evaluation of the result of ethyl butyrate as an additive on smoke reveal that: The thermal cracking actions under is generally model transfer, which follows the experimental outcomes reported in the literature. ② Including ethyl butyrate to empty cigarettes will not trigger a considerable increase in the release of 7 unsafe smoke parts.
