卷烟滤嘴材料中汞、砷的HG-AFS测定

Determination of Hg and As in Cigarette Filter Components with Hydride Generation-Atomic Fluorescence Spectrometry

摘要: 采用硝酸-过氧化氢常压加热消解或微波消解和氢化物-原子荧光光谱法测定了接装纸、成型纸、醋纤丝束、聚丙烯丝束、三醋酸甘油酯、聚丙烯丝束胶粘剂、白乳胶、热熔胶等8种卷烟滤嘴材料195个样品中的汞、砷。结果显示:①汞、砷的检出限、RSD和平均回收率分别为0.1和1 ng/mL、1.14%~5.31%和2.83%~6.37%、93.58%~101.5%和95.58%~102.3%;②这些卷烟滤嘴材料中的汞、砷含量范围分别为0.002~0.051 mg/kg和0.025~0.651 mg/kg。该方法适用于卷烟滤嘴材料中汞、砷的测定。

Abstract: 195 filter component samples,including tipping paper,plug wrap paper,diacetate cellulose tow,polypropylene tow,triacetin,adhesive for polypropylene fiber,polyvinyl acetate emulsion and hot melt adhesive,were determined with HG-AFS after digested with HNO₃ and H₂O₂ by heating in water bath or in a microwave oven.The results indicated that:1) the limits of detection for Hg and As were 0.1 and 1 ng/mL,respectively;their average recoveries were 93.58%-101.5% and 95.58%-102.3%,and RSDs were in the range of 1.14%-5.31% and 2.83%-6.37%,respectively;2) the contents of Hg and As in the samples were in the range of 0.002-0.051 and 0.025-0.651 mg/kg,respectively.The method is suitable for the determination of Hg and As in cigarette filter components.