Quantitative Analysis of Trace Metals in Aqueous Solutions by Laser Induced Breakdown Spectroscopy Combined with Filter Paper Assisted Analyte Enrichment
| Autor: | Q. Gao, H. Qin, J. Xiu, Sh. Liu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Detection limit
Analyte Materials science Aqueous solution Filter paper Calibration curve 010401 analytical chemistry Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Metal visual_art visual_art.visual_art_medium Laser-induced breakdown spectroscopy 0210 nano-technology Spectroscopy |
| Zdroj: | Journal of Applied Spectroscopy. 87:629-635 |
| ISSN: | 1573-8647 0021-9037 |
| Popis: | The sensitive quantitative analysis of trace heavy metallic elements (Cd, Mn, Cr, and Cu) in aqueous solutions was achieved successfully through the combination of filter paper enrichment with laser-induced breakdown spectroscopy. Filter paper was enriched with 0.4 mL aqueous solutions to form a homogeneous sample layer on the surface of the metallic target. Considering the limits of detection, the values deduced with calibration curves already exhibited the high performance of the proposed method at several hundred or 10 μg/L (Cd 0.165, Mn 0.035, Cr 0.012, and Cu 0.078 mg/L), lower than or comparable to those using other similar methods. The LIBS results agreed reasonably well with those from ICP-MS for real samples. All results showed that our method was suitable and accurate for rapid on-site detection of trace metals in aqueous solutions. This indicates that filter paper enrichment combined with laser-induced breakdown spectroscopy is a feasible approach to wastewater quality monitoring. |
| Databáze: | OpenAIRE |
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