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| Determination of Primary and secondary elements in Soil by Inductively Coupled Plasma Atomic Emission Spectrometry with Microwave Digestion |
| Received:September 14, 2018 Revised:September 14, 2018 |
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| DOI： |
| KeyWord:Soil; Microwave digestion; Inductively Coupled Plasma Atomic Emission Spectrometry; Simultaneous detection;Primary and secondary elements |
| Author | Institution |
| YU Haijun |
湖南省勘测设计院 |
| ZHANG Lili |
湖南省勘测设计院 |
| QU Zhipeng |
中国电建集团中南勘测设计研究院有限公司工程科研所 |
| YANG Yuan |
湖南农业大学;湖南农业大学 |
| DENG Feiyue |
中南大学化学化工学院 |
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| Abstract: |
| an analytical method for the simultaneous determination of various main and secondary elements in soil by microwave digestion-inductively coupled plasma emission spectrometry was established. The nitrogen-hydrofluoric acid-hydrogen peroxide water system is used to digest soil samples in the microwave ablator. After the digestion is completed, perchloric acid is added to drive hydrofluoric acid, hydrochloric acid dissolves the salt material, and the mineral lattice of all elements in the soil is destroyed. All the solution to be tested enters the test liquid, Inductively coupled plasma emission spectroscopy was used for determination. The precision and accuracy of sample analysis are improved by screening suitable analytical lines and setting reasonable background deduction positions. The National soil standard material was used to verify the method. Most of the experimental results agree with the standard value, and the RSD is less than 5 %. The method has the advantages of simultaneous determination of various elements, less reagent use, and simple operation, which indicates that the method is suitable for rapid detection of main and secondary elements in large amounts of soil. |
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