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<p>The accuracy of the resulting element concentrations within a sample is considered a challenge for researchers. X-ray fluorescence (XRF) and laser-induced breakdown spectroscopy (LIBS) were used to measure the amounts of magnesium (Mg), calcium (Ca), iron (Fe), potassium (K), and phosphorus (P) in dried white lemon samples.&#xa0;This work offers a novel method based on the greatest intensity of the spectral lines—a method not before applied in micronutrient analysis employing LIBS. LIBS and XRF’s outputs were rather close to one another. For calcium (Ca), the errors were 0.01045%; for magnesium (Mg), 0%; for iron (Fe), 0.0197%; for potassium (K), 0.048%; for phosphorus (P). These findings show that in micronutrient analysis, LIBS’s accuracy and efficiency are raised by this method. This approach greatly improves LIBS’s dependability for precise and quick micronutrient counts.</p>

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Comparison of LIBS and XRF for accurate micronutrient analysis in dried white lemon

  • 期刊论文

  • 发表日期：

    2025年2月22日

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  • Lara A. Kadhim,
  • Ali K. Abdel Hussein,
  • Muayyed Jabar Zoory,
  • Rajaa Nader

摘要

The accuracy of the resulting element concentrations within a sample is considered a challenge for researchers. X-ray fluorescence (XRF) and laser-induced breakdown spectroscopy (LIBS) were used to measure the amounts of magnesium (Mg), calcium (Ca), iron (Fe), potassium (K), and phosphorus (P) in dried white lemon samples. This work offers a novel method based on the greatest intensity of the spectral lines—a method not before applied in micronutrient analysis employing LIBS. LIBS and XRF’s outputs were rather close to one another. For calcium (Ca), the errors were 0.01045%; for magnesium (Mg), 0%; for iron (Fe), 0.0197%; for potassium (K), 0.048%; for phosphorus (P). These findings show that in micronutrient analysis, LIBS’s accuracy and efficiency are raised by this method. This approach greatly improves LIBS’s dependability for precise and quick micronutrient counts.