|
|
|
| THE APPLICATION OF THE MICROWAVE DIGESTION-COLD ATOMIC FLUORESCENCE SPECTROSCOPY TO THE DETERMINATION OF Hg IN THE PLANTS |
| CHEN Hai-jie, YU Zhao-shui, XING Xia, ZHANG Xue-mei, ZHANG Qin |
| Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 06500, China |
|
|
|
|
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.
|
|
Received: 15 November 2013
Published: 10 April 2014
|
|
|
|
|
|
| [1] |
WANG Bin, LUO Yan-Jun, MENG Guang-Lu, ZHANG Jing, ZHANG Hai-Di, CHEN Bo, HE Zi-Xin. Potential assessment of gold, copper, lead, zinc, tungsten, and tin deposits in Kyrgyzstan based on 1∶1 000 000 scale geochemical data[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 58-69. |
| [2] |
ZHAO Ze-Lin, LI Jun-Jian, ZHANG Tong, NI Zhen-Ping, PENG Yi, SONG Li-Jun. Geological characteristics and prospecting direction of rare earth element deposits in North China[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 46-57. |
|
|
|
|
