摘要
为了解烟用内衬纸中挥发性有机化合物（VOCs）残留量,建立了以氟苯为内标,顶空-气质联用法（HS-GC/MS）测定19种VOCs方法,并采用该法测定了20种烟用内衬纸样品中的VOCs含量。结果表明：①氟苯作内标,适合这19种VOCs的定量分析;②VOCs的检测限为0.001~0.004 mg/m2,回收率92%~109%,RSD〈4%;③烟用内衬纸样品中检出的VOCs种类较少,且其总量均低于YC 264-2008标准规定的限量。其中,甲醇、乙醇和异丙醇的检出率分别为90%,100%和100%,且残留量相对较大;丙酮、丙二醇甲醚、乙酸乙酯的检出率分别为100%,55%和25%,但残留量较低;除3个样品中检测出甲苯外,所有样品均未检出苯、乙苯、二甲苯、环己酮、丙二醇乙醚、4-甲基-2-戊酮、乙酸正丙酯和乙酸异丙酯。
A method for determining 19 volatile organic compounds（VOCs） in innerliner with headspace gas chromatography/mass spectrometry（GC/MS） by using fluorobenzene as an internal standard（ISTD） was established and 20 innerliner samples were tested.The results indicated that： 1） fluorobenzene,was a suitable ISTD for quantitative analysis of these 19 VOCs;2） the recoveries of the VOCs were from 92% to 109% with relative standard deviation（RSD） of less than 4% and the limits of detection between 0.001 and 0.004 mg/m2;3） fewer VOCs were detectable from the samples,the detectable rates of methanol,alcohol,isopropanol,acetone,propylene glycol methyl ether,and ethyl acetate were 90%,100%,100%,100%,55% and 25%,respectively.The residual concentrations of methanol,alcohol and isopropanol were relatively higher,while those of the other 3 VOCs were lower,and total residual concentration was within the limits specified by standard YC 264-2008. Benzene,ethylbenzene,xylene,cyclohexanone,propylene glycol monoethyl ether, 4-methyl-2-pentanone,propyl acetate and isopropyl acetate were not detectable in all samples.Toluene was detected in three samples.
出处
《烟草科技》
EI
CAS
北大核心
2010年第1期22-26,共5页
Tobacco Science & Technology
