微波消解-原子荧光光谱法测定浸渍胶膜纸用胶粘剂中汞含量  

Determination of mercury content in the adhesive for resin impregnated paper by microwave digestion-atomic fluorescence spectrometry

作　　者：辜忠春[1] 李晖[1] 李光荣[1] 李军章[1] 王宵[1] 蔡芳[1] GU Zhong-chun;LI Hui;LI Guang-rong;LI Jun-zhang;WANG Xiao;CAI Fang(Hubei Academy of Forestry,Forest Products Quality Inspection Center of the State ForestryBureau(Wuhan),Wuhan 430075,China)

机构地区：[1]湖北省林业科学研究院国家林业局林产品质量检验检测中心(武汉),湖北武汉430075

出　　处：《应用化工》2018年第12期2806-2808,共3页Applied Chemical Industry

基　　金：湖北省林业科技支撑重点项目([2016]LYKJ07)

摘　　要：应用微波消解-原子荧光光谱法测定浸渍胶膜纸用胶粘剂中汞含量。浸渍胶膜纸用胶粘剂利用硝酸+过氧化氢的混合消解液进行微波消解,在最优实验条件下(汞灯电流35 m A、光电倍增管负高压-270 V、原子化器高度9 mm),以原子荧光光谱法测得试样汞含量为26μg/kg,RSD=4. 60%(n=6),标准曲线相关系数0. 999 1,检出限为5. 3μg/kg,采用此方法加标回收率为81. 15%～93. 73%,具有较高的灵敏度和准确性,可应用于浸渍胶膜纸用胶粘剂中的汞含量测定。A microwave digestion-atomic fluorescence spectrometry method of mercury in adhesive for resin impregnated paper was established. The adhesive for resin impregnated paper was microwave digested with a mixed solution of HNO3 and H2O2. In the optimal experimental conditions( mercury lamp current of 35 m A,photomultiplier tube negative high pressure of-270 V,atomizer height of 9 mm) by atomic fluorescence spectrometry,the content of mercury was 26 μg/kg and RSD = 4. 60%( n = 6). The correlation coefficient of standard curve was 0. 999 1 while the detection limit was 5. 3 μg/kg. The standard addition recovery rate was from 81. 15% to 93. 73%. That the method has higher sensitivity and accuracy,and it can be applied to the determination of mercury content in the adhesive for resin impregnated paper.

关 键 词：浸渍胶膜纸用胶粘剂 汞 微波消解 原子荧光光谱法 

分 类 号：TQ016.1[化学工程] TQ433.4