Purification Of Phenol In Cigarette Smoke With Modified Acetate Filter By CCGC

In order to improve the reduction of removing harmful components from cigarettes and develop new materials selectively to reduce the harmful components in cigarette smoke a method was developed,which can determinate phenol in cigarette flue gas by capillary gas chromatography.Based on this method,the effects of different additives and it's ratio to removal phenol from the mainstream smoke of cigarettes were explored.The best absorbent,addition amount and proportion of phenol in cigarette smoke were found,which providing a avaluable reference for research on smoking and health.This paper is divided into four aspects,the main content is as follows.The first part: This section outlines the research progress of phenol residues in cigarette smoke and modification of filters.The research introduced the harm of phenol to human body and environment.In addition,the quantification and quantitative analysis methods of phenol in cigarette smoke are reviewed in this paper.The background,main research contents and research significance of this experiment were introduced.The second part: In this part,the effects of removing phenol with triethyl phosphate,tributyl phosphate,citric acid,diethanolamine borate,and tartaric acid as additives for cigarette filters were examined.And the effects of additive amount,temperature,and smoking rate on the experimental results were also explored.As a result,it was found that when the volume ratio of tributyl phosphate and triacetin was 1:150 and the total amount was 5 m L,the phenol in the cigarette smoke could be efficiently collected.And the phenol absorption in cigarette smoke increased 400% year-by-year.It has significant meaning of reducing the damage of cigarettes.The third part: A method for determination of phenol in cigarette smoke by capillary gas chromatography was developed in this part.It was founded that the mass concentration of phenol in cigarette smoke was liner with peak area in the range of 1.6–160 mg/L with correlation coefficient of 0.9995.The detection limit was 0.2 mg/L.And the recoveries ranged from 91% to 107%.The relative standard deviation of determination results were less than 4.3%(n=5).This method is simple and feasible.It combined with self-made smoking trap to effectively capture phenol in flue gas,which can simulate the actual combustion process of cigarettes to a greater degree.The result is reliable.It can fulfil the analysis requirement of phenol content in flue gas.The fourth part: A method for rapidly separation and detection ten kinds of sulfonamide antibiotic substances in toothpaste was established in this part.In this method the effects of detector wavelength,column temperature,mobile phase composition and flow rate on resolution were examined.The results showed that there is a good linear relationship between mass concentration and chromatographic peak area in the range of 0.10-100 mg/L.When the detection wavelength is 270 nm,and the column temperature is 20.0 °C which close to room temperature,the mobile phase flow rate is 1.000 mL/min,and the mobile phase is 0.1% formic acid-methanol solution for gradient elution,ten common sulfonamide antibiotics were separated well.The correlation coefficient is 0.9995 to 0.9999.The detection limits were between 2.0 and 3.1 mg/kg.The recoveries of this method were ranged from 83.2% to 117.3%.The relative standard deviation were less than 2.1%.This method has good linearity,high precision,and good stability.It has certain reference value for the separation,qualitative and quantitative detection of common sulfonamide antibiotics in the toothpaste.According to this method,seventeen kinds of different brands of toothpaste were tested after the sample were pretreated,and the result was negative.