The Influence of Two Digestion Methods on Measuring the Content of Heavy Metal in Soil

SHI Hong-zhou; LIU Yong-an; WANG Yang-mei; ZHOU Qian; CAI Guang-ze

doi:10.16779/j.cnki.1003-5508.2016.04.017

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Volume 37 Issue 4

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2016 > 37(4): 79-83

SHI Hong-zhou, LIU Yong-an, WANG Yang-mei, ZHOU Qian, CAI Guang-ze. The Influence of Two Digestion Methods on Measuring the Content of Heavy Metal in Soil[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(4): 79-83. doi: 10.16779/j.cnki.1003-5508.2016.04.017

Citation:

SHI Hong-zhou, LIU Yong-an, WANG Yang-mei, ZHOU Qian, CAI Guang-ze. The Influence of Two Digestion Methods on Measuring the Content of Heavy Metal in Soil[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(4): 79-83. doi: 10.16779/j.cnki.1003-5508.2016.04.017

The Influence of Two Digestion Methods on Measuring the Content of Heavy Metal in Soil

doi: 10.16779/j.cnki.1003-5508.2016.04.017

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Liangshan Institute of Forestry, Liangshan 61500, Sichan;College of Agriculture, Sichan Agricultural University, Ya'an 625014, Sichan;College of Agriculture, Xichang College, Liangshan 615014, Sichan

Received Date: 2016-05-11

Abstract

In order to explore the influences of the different digestion methods on measuring the content of heavy metal in soil,in this experiment,two different digestion methods,the wet-digestion and high pressure sealed digestion methods,were used to measure the content of Cd,Pb,Cu and Cr in the standard soil of Sichuan Basin by adopting atomic absorption spectrometry.The result showed that (1) the wet digestion and the high pressure sealed digestion methods were able to digest Cd,Pb,Cu and Cr.The sample detection was all below 0.05 μg·l^-1; (2) The effect of the high pressure sealed digestion methods was better than that of the wet digestion method,and the relative standard deviation or accuracy of high pressure hydrothermal decomposition was more trustful than that of the wet digestion; (3) the high pressure sealed digestion method was effectively able to control the sample loss and more simple,time-saving,even to reduce the using of acid and environmental pollution.Thus the high pressure hydrothermal decomposition method would be used as a practicable method of analyzing the content of heavy metal in soil.
- Influence;
- Wet digestion;
- High pressure sealed vessels digestion;
- Soil Heavy metal;
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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The Influence of Two Digestion Methods on Measuring the Content of Heavy Metal in Soil

doi: 10.16779/j.cnki.1003-5508.2016.04.017

Liangshan Institute of Forestry, Liangshan 61500, Sichan;College of Agriculture, Sichan Agricultural University, Ya'an 625014, Sichan;College of Agriculture, Xichang College, Liangshan 615014, Sichan

Received Date: 2016-05-11

Key words:

Influence /
Wet digestion /
High pressure sealed vessels digestion /
Soil Heavy metal /

Abstract: In order to explore the influences of the different digestion methods on measuring the content of heavy metal in soil,in this experiment,two different digestion methods,the wet-digestion and high pressure sealed digestion methods,were used to measure the content of Cd,Pb,Cu and Cr in the standard soil of Sichuan Basin by adopting atomic absorption spectrometry.The result showed that (1) the wet digestion and the high pressure sealed digestion methods were able to digest Cd,Pb,Cu and Cr.The sample detection was all below 0.05 μg·l^-1; (2) The effect of the high pressure sealed digestion methods was better than that of the wet digestion method,and the relative standard deviation or accuracy of high pressure hydrothermal decomposition was more trustful than that of the wet digestion; (3) the high pressure sealed digestion method was effectively able to control the sample loss and more simple,time-saving,even to reduce the using of acid and environmental pollution.Thus the high pressure hydrothermal decomposition method would be used as a practicable method of analyzing the content of heavy metal in soil.