Abstract:For the purpose of simplifying the determination of Hg in plants and improving sensitivity and reliability of the result, samples were firstly treated through the micro-wave digestion process and then reduced with the SnCl2. After that, the element Hg in the samples was detected with the cold atomic fluorescence spectroscopy. The best solution for the samples digestion and the optimal work parameters of the test instrument were obtained during the experiment. The detection limit is 0.30×10-9 (dilution factor 100), RSD (n=12) is between 2.09% and 6.05%, and the recovery for the sample is in the range of 94.1%~105.5%. The method was applied to the determination of Hg in biological national standard reference materials and the results show its accuracy and reliability.
陈海杰, 于兆水, 邢夏, 张雪梅, 张勤. 微波消解—冷原子荧光光谱法测定植物样品中的汞[J]. 物探与化探, 2014, 38(2): 393-395,401.
CHEN Hai-jie, YU Zhao-shui, XING Xia, ZHANG Xue-mei, ZHANG Qin. THE APPLICATION OF THE MICROWAVE DIGESTION-COLD ATOMIC FLUORESCENCE SPECTROSCOPY TO THE DETERMINATION OF Hg IN THE PLANTS. Geophysical and Geochemical Exploration, 2014, 38(2): 393-395,401.