LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Feasibility of using laser induced breakdown spectroscopy for quantitative measurement of calcium, magnesium, potassium and sodium in meat | Cassiana Seimi Nomura, Angerson Nogueira Nascimento, Daniel Menezes Silvestre, Flavio O. Leme | Organic | J 200 Tandem | J 200 Tandem | Aurora |
| Laser: | Nd:YAG 266.0000nm 20.0000mJ 10.000Hz |
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| Gate Delay: | 0.200us | ||||
| Gate Width: | 1050.000us | ||||
| A rare application where ground beef and chicken samples are analysed using LIBS. Samples were freeze dried, then milled, then pelletised. Elements for analysis were introduced via the cellulose binder. Laser spot size, and delay were optimised for analysis. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Na | 11.8000 (Calibration Curve Slope) | 588.9950 | 589.592nm | Univariate | 280.0000-2300.0000 | Detection limits in the range 11.8-13.7 ppm were obtained depending on material (Beef or Chicken) and wavelength used. |
| K | 25.9000 (Calibration Curve Slope) | 766.4890 | 769.896nm | Univariate | 1400.0000-16000.0000 | Detection limits in the range 25.9-38.6 ppm were obtained depending on material (Beef or Chicken) and wavelength used. |
| Mg | 7.2000 (Calibration Curve Slope) | 285.2130 | 279.553nm, 280.27nm | Univariate | 220.0000-1500.0000 | Detection limits in the range 7.2-10.5 ppm were obtained depending on material (Beef or Chicken) and wavelength used. |
| Ca | 7.0000 (Calibration Curve Slope) | 422.0000 | 393.366nm, 396.847nm | Univariate | 75.0000-480.0000 | Detection limits in the range 7-10.7 ppm were obtained depending on material (Beef or Chicken) and wavelength used. |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Ca | 16.6883 ppm | 422.6730 | Univariate | Analysis of pelletised, ground beef/chicken. Analysis of pelletised, ground beef/chicken. |
| K | 588.3026 ppm | 766.4890 | Univariate | Analysis of pelletised, ground beef/chicken. Analysis of pelletised, ground beef/chicken. |
| Mg | 22.8254 ppm | 285.2130 | Univariate | Analysis of pelletised, ground beef/chicken. Analysis of pelletised, ground beef/chicken. |
| Na | 62.1168 ppm | 588.9950 | Univariate | Analysis of pelletised, ground beef/chicken. Analysis of pelletised, ground beef/chicken. |