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Sensitive detection of trace precious metals in acidic solutions using liquid sheet jet laser-induced breakdown spectroscopy
https://repo.qst.go.jp/records/2001779
https://repo.qst.go.jp/records/200177981bb210c-09da-4fbe-b6ba-18d9d9df80ab
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2025-12-15 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Sensitive detection of trace precious metals in acidic solutions using liquid sheet jet laser-induced breakdown spectroscopy | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
Nakanishi Ryuzo
× Nakanishi Ryuzo
× Saeki Morihisa
× Ohba Hironori
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Rapid in-situ analysis of precious metals in liquid has been highly desired for real-time monitoring of recovery processes. We demonstrate that laser-induced breakdown spectroscopy (LIBS) combined with a liquid sheet jet provides a sensitive technique that can directly analyze trace precious metals (Au, Pt, Pd, Ag, Rh, and Ru) in acidic aqueous solutions. A glass slit nozzle resistant to corrosive acids was employed to generate a liquid sheet jet with a thickness of tens of micrometers, which mitigated the liquid splashing inherent in the direct detection of liquid by LIBS, thereby yielding persistent luminous plasma. The optimal thickness of the sheet jet for LIBS measurement was determined as 14 µm. The LIBS spectral profiles for each analyte obtained by 532 nm laser excitation were explored to select the analytical lines for quantitative analysis. The univariate calibration curves of the analyte elements were then constructed to calculate the limit of detection (LODs) as well as other figures of merit. The LODs of Au, Pt, Pd, Ag, Rh, and Ru were estimated respectively to be 0.62, 0.97, 0.09, 0.14, 0.09, and 0.15 mg L–1, achieving detection limits below 1 mg L–1 and being greatly improved from conventional liquid jet LIBS. Thus, liquid sheet jet LIBS would offer a useful tool for real-time monitoring of metal recovery processes. | |||||||||||
| 書誌情報 |
Journal of Analytical Atomic Spectrometry 巻 40, p. 1185-1191, 発行日 2025-09 |
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| 出版者 | ||||||||||||
| 出版者 | Royal Society of Chemistry | |||||||||||
| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1039/D4JA00467A | |||||||||||
