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<p><sup>210</sup>Po can be rapidly determined in seawater samples by alpha spectrometry using tellurium (Te) microprecipitation. In this method, Po is first pre-concentrated using titanium trichloride (TiCl<sub>3</sub>), redissolved in 3&#xa0;M HCl, and filtered. Te microprecipitation was then applied to the supernatant. Replicate spiked samples and blank samples were analyzed to evaluate the performance of the procedure. For <sup>210</sup>Po in 1&#xa0;L seawater samples, the minimum detectable activity concentration (MDC) was determined to be 0.5&#xa0;mBq L<sup>−1</sup> with a counting time of 24h, and high recoveries (~ 89%) were achieved. This method is suitable for the rapid batch screening of <sup>210</sup>Po in environmental water samples.</p>

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Determination of 210Po in seawater by tellurium microprecipitation

  • 期刊论文

  • 发表日期：

    2026年7月31日

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  • Lina Ma,
  • Longjiang Wang,
  • Yan Ma,
  • Hui Zhang

摘要

210Po can be rapidly determined in seawater samples by alpha spectrometry using tellurium (Te) microprecipitation. In this method, Po is first pre-concentrated using titanium trichloride (TiCl3), redissolved in 3 M HCl, and filtered. Te microprecipitation was then applied to the supernatant. Replicate spiked samples and blank samples were analyzed to evaluate the performance of the procedure. For 210Po in 1 L seawater samples, the minimum detectable activity concentration (MDC) was determined to be 0.5 mBq L−1 with a counting time of 24h, and high recoveries (~ 89%) were achieved. This method is suitable for the rapid batch screening of 210Po in environmental water samples.