| Professional Committee of Rock and Mineral Testing Technology of the Geological Society of China, National Geological Experiment and Testing Center | Host |
| Citation: |
WANG Lei, YU Tingting, SUN Hongbin, ZHANG Baoke. Boron Analysis in Boron Ores by Inductively Coupled Plasma-Optical Emission Spectrometry with Sealed Acid Digestion at High Pressure[J]. Rock and Mineral Analysis, 2024, 43(3): 468-475. doi: 10.15898/j.ykcs.202308070131
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Boron Analysis in Boron Ores by Inductively Coupled Plasma-Optical Emission Spectrometry with Sealed Acid Digestion at High Pressure
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Abstract
The literature provides reference for the accurate determination of boron by inductively coupled plasma-optical emission spectrometry (ICP-OES), but most of the studies are conducted on the standard substances of soil and stream sediment. In addition, the range of boron content is low, and the methods for the determination of high boron content in boron ores are few. A method of ICP-OES with sealed acid digestion at high pressure was developed for the determination of boron content in boron ores. Using nitric acid and hydrofluoric acid as reagents, the samples of boron ores were dissolved at high temperature and high pressure without acid drive, and ICP-OES equipped with a hydrofluoric acid-resistant sampling system was used to determine boron. The samples of boromagnesite, ludwigite, chambersite and salt lake type solid boron ore were taken as the research objects. The relative standard deviation (RSD, n=11) was 0.39%−2.66%, the detection limit of the method was 1.76g/g, and the determination range was 5.87g/g−10.8%. The measured values were consistent with the certified values after the verification of the reference materials. Compared with volumetric method and microwave digestion method, the results were in good agreement. This method does not require evaporating the sample solution, which solves the boron volatile loss problem. The BRIEF REPORT is available for this paper at
http://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202308070131 . -
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References
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WANG Lei, YU Tingting, SUN Hongbin, ZHANG Baoke. Boron Analysis in Boron Ores by Inductively Coupled Plasma-Optical Emission Spectrometry with Sealed Acid Digestion at High Pressure[J]. Rock and Mineral Analysis, 2024, 43(3): 468-475. doi: 10.15898/j.ykcs.202308070131
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