On the detection of heavy elements in the Euphorbia indica plant using laser-induced breakdown spectroscopy and laser ablation time of flight mass spectrometry
| Autor: | Shaukat Mehmood, Abdul Jabbar, Rizwan Ahmed, Mahmood Akhtar, Nasar Uddin Ahmed, Muhammad Aslam Baig, Z. A. Umar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Laser ablation Plasma parameters 010401 analytical chemistry Analytical chemistry Plasma 010501 environmental sciences Mass spectrometry 01 natural sciences 0104 chemical sciences Analytical Chemistry Laser-induced breakdown spectroscopy Emission spectrum Time-of-flight mass spectrometry Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Journal of Analytical Atomic Spectrometry. 34:954-962 |
| ISSN: | 1364-5544 0267-9477 |
| DOI: | 10.1039/c9ja00053d |
| Popis: | In this paper, we have addressed the phytoremediation, the ability to absorb heavy metals, of the Euphorbia indica plant by detecting heavy metals in its roots, stem and leaves using laser-induced breakdown spectroscopy (LIBS) and laser ablation time-of-flight mass spectrometry (LA-TOF-MS). Since agricultural yields heavily depend on soil fertility, which is badly affected by industrial waste and heavy metals, they need to be maintained and improved using the fertilization process and by removing the heavy metals. The presence of chromium in the Euphorbia indica plant has been established from the optical emission spectra of its different parts using the standard LIBS analytical technique. The detection limit of the trace element was improved by applying an electric field (E) across the laser-produced plasma plume, which yields much-enhanced intensities of the emission lines. The spectral lines of the trace elements also appear, which were too weak to be detected in the spectra taken in the absence of the electric field. The plasma parameters such as electron number density and plasma temperature were estimated from the spectra recorded with and without the electric field. The compositional analysis was performed using calibration-free LIBS and laser ablation time-of-flight mass spectroscopy, which are in good agreement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|