Name
Abstract | ||
|---|---|---|
Raman spectroscopy is a selective detection system scarcely applied for the flow analysis of solutions with the aim of detecting several compounds at once without a previous separation step. This work explores the potential of a portable Raman system in a flow system for the selective detection of a mixture of seven oxyanions (carbonate, sulphate, nitrate, phosphate, chlorate, perchlorate, and thiosulphate). The specific bands of these compounds (symmetric stretching Raman active vibrations of carbonate at 1068 cm(-1), nitrate at 1049 cm(-1), thiosulphate at 998 cm(-1), phosphate at 989 cm(-1), sulphate at 982 cm(-1), perchlorate at 935 cm(-1), and chlorate at 932 cm(-1)) enabled their simultaneous detection in mixtures. Although the oxyanions' limit of detection (LOD) was rather poor (in the millimolar range), this extremely simple system is very useful for the single-measurement detection of most of the oxyanions in mixtures, without requiring a previous separation step. In addition, quantitative determination of the desired oxyanion can be performed by means of the corresponding calibration line. These are important advantages for controlling in-line processes in industries like those manufacturing fertilizers, pharmaceuticals, chemicals, or food, among others. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.3390/s18072196 | SENSORS |
Keywords | Field | DocType |
flow analysis,oxyanions,Raman detection | Analytical chemistry,Oxyanion,Chemical engineering,Engineering,Raman spectroscopy | Journal |
Volume | Issue | Citations |
18 | 7.0 | 0 |
PageRank | References | Authors |
0.34 | 1 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Félix Zapata | 1 | 0 | 0.34 |
| Fernando Ortega-Ojeda | 2 | 0 | 0.68 |
| Carmen Garcia-Ruiz | 3 | 0 | 0.68 |
| Miguel Gonzalez-Herraez | 4 | 1 | 3.77 |