接装纸中镉、铬、镍的石墨炉原子吸收光谱测定

Determination of Cadmium, Chromium,Nickel in Tipping Paper by Graphite Furnace Atomic Absorption Spectrometry

摘要: 建立了微波消解-石墨炉原子吸收法测定烟用接装纸中镉(Cd)、铬(Cr)、镍(Ni)含量的方法,并采用该方法测定了44个牌号接装纸样品中的Cd、Cr、Ni含量。结果表明:①Cd、Cr、Ni元素的平均回收率分别为102.2%、101.9%和102.2%;RSD分别为4.40%、3.96%和4.71%;检出限为0.009、0.014、0.016mg/kg;②所测接装纸样品中Cd的含量都在1mg/kg以下,约23.7%接装纸样品的Cr含量超过15mg/kg,只有1个样品的Ni含量超过5mg/kg。

Abstract: A method for determining cadmium,chromium,nickel in tipping paper by graphite furnace atomic absorption spectrometry was developed and tipping paper samples of 44 cigarette brands were analyzed.The results indicated that:1) the recoveries of cadmium,chromium,nickel were 102.2%,101.9% and 102.2% with the RSDs of 4.40%,3.96% and 4.71%,and the limits of detection of 0.009,0.014,and 0.016 mg/kg,respectively;2) the cadmium content in all samples was below the tolerance of 1 mg/kg,while the chromium contents in 23.7% of the samples were over the tolerance of 15 mg/kg,and only one sample's nickel content was over the tolerance of 5 mg/kg.