|
| A research on quantitative determination of nitrogen in the soil by using laser induced breakdown spectroscopy in the air - based on CN molecular spectral line |
| Received:June 14, 2018 Revised:June 14, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：doi:10.3969/j.issn.2095-1035.2018.05.005 |
| KeyWord:Molecular line; Laser induced breakdown spectroscopy; Soil nutrients; Rapid analysis. |
| Author | Institution |
| HanPengcheng |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
| Shi Yehong |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
| LI Ruihua |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
| Zhao Zhen |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
| Fang Shengnan |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
| Li Huachang |
北矿检测技术有限公司;北京矿冶科技集团有限公司 |
|
| Hits: 1236 |
| Download times: 722 |
| Abstract: |
| Rapid measurement of soil nitrogen is important in the modern agriculture, and the traditional method is not suitable for fast field-site analysis. The laser-induced breakdown spectroscopy (LIBS) has been shown to be used for the detection of elements in the soil, but for soil nitrogen testing, how to eliminateSthe impact of the nitrogen in the air is an important process. This paper proposes a method for total soil nitrogen detection in the air based on the CN molecular spectral line at 388.3 nm. The results show that this method can be very good to avoid the influence of atmospheric nitrogen, and the detection limit is less than 0.14%. Comparing to the results used N atomic emission line at 746.8 nm in the air and argon gas, the advantages of the proposed method are obvious. |
| Close |