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<p>A rapid analytical method was developed for the determination of uranium in monazite mineral samples using LED fluorimeter. Microwave-assisted digestion technique with phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) is used for effective decomposition of monazite minerals. The parameters such as volume of H<sub>3</sub>PO<sub>4,</sub> contact time, amount of sample and temperature were studied and optimized. The accuracy and precision of the method was evaluated by analyzing monazite samples of Inter-Laboratory Comparison Exercise (ILCE) and Certified Reference Material, IGS-36. The results were found to be in very good agreement with the assigned values. RSD of the method is ± 3–5% at 0.19–0.35% U<sub>3</sub>O<sub>8</sub> in monazite minerals.</p>

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An eco-friendly approach for uranium determination in monazite samples using microwave assisted digestion and LED fluorimeter

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月4日

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  • Saraiah Bhukya,
  • Naveen Kumar Pattipaka,
  • Beena Sunilkumar,
  • Smeer Durani

摘要

A rapid analytical method was developed for the determination of uranium in monazite mineral samples using LED fluorimeter. Microwave-assisted digestion technique with phosphoric acid (H3PO4) is used for effective decomposition of monazite minerals. The parameters such as volume of H3PO4, contact time, amount of sample and temperature were studied and optimized. The accuracy and precision of the method was evaluated by analyzing monazite samples of Inter-Laboratory Comparison Exercise (ILCE) and Certified Reference Material, IGS-36. The results were found to be in very good agreement with the assigned values. RSD of the method is ± 3–5% at 0.19–0.35% U3O8 in monazite minerals.