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目的建立工作场所空气中二乙烯基苯气相色谱的检测方法。方法活性炭管吸附空气中的二乙烯基苯,二硫化碳和丙酮(7:3)混解吸液解吸,氢焰离子化检测器检测。结果标准曲线回归方程为y=1.021x-10.26;相关系数r=0.999 9;检出限为10μg/ml;高、中、低3个浓度4 d 6次测定的变异系数分别为6.39%、5.95%、7.66%;解吸效率为78.6~81.2%;穿透容量大于10.1 mg;采样效率100%,室温下采样后活性炭管可放置7d。结论该方法适用于工作场所空气中二乙烯基苯的浓度测定。
Objective To establish a method for the determination of divinylbenzene in the air of workplace. Methods Adsorption of divinylbenzene, carbon disulfide and acetone (7: 3) in the air by activated carbon tube was carried out by desorption and hydrogen flame ionization detector. Results The standard curve regression equation was y = 1.021x-10.26; the correlation coefficient was 0.999 9; the detection limit was 10μg / ml; the coefficient of variation Of 6.39%, 5.95%, 7.66%; desorption efficiency of 78.6 ~ 81.2%; penetration greater than 10.1 mg; sampling efficiency of 100%, after sampling at room temperature activated carbon tube can be placed 7d. Conclusion This method is suitable for the determination of divinylbenzene in the air of workplace.