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| Determination of nine primary and secondary elements in sandstone-type uranium deposits by X-ray fluorescence spectrometry |
| Received:June 22, 2023 Revised:January 04, 2024 |
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| DOI：10.3969/j.issn.2095-1035.2024.04.009 |
| KeyWord:organic cellulose, powder lamination, X-rayf luorescence spectrometry, sandstonetype uranium ore, Grubbs |
| Author | Institution |
| Qiao Hao |
核工业二一六大队 |
| wangmingli |
核工业二一六大队 |
| dengchangsheng |
核工业二一六大队 |
| 王斌堂 |
核工业二一六大队 |
| lipengfei |
核工业二一六大队 |
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| Abstract: |
| The purpose is to replace the boric acid lining in powder laminating method with strong adhesion and corrosive low organic cellulose, reduce the boric acid lining volatilized by heat in the sample analysis process, dispersed boric acid powder attached to the instrument metal parts, filter, collimator, boric acid dust accumulation, increase the maintenance cost of the instrument and even affect the operation of the instrument and test results and other adverse effects. Methods The possibility of organic cellulose as lining layer and its influence on the sample test results were studied. In the process of improving the sandstone-type uranium ore sample with microcrystalline fiber powder, there would be poor cohesiveness, delamination and cracks of the sample. Results The precision (RSDS,n=11) of the nine primary and secondary elements in sandstone-type uranium ore was 0.34-4.76%, and the accuracy was 0.06-5.52%. Compared with the determination values of boric acid lining and samples without auxiliary binder, the statistics G of each element were all between 1.25-1.40% by Grubs method. Conclusion The use of hydroxymethyl cellulose as lining can be used for the determination of primary and secondary elements in sandstone type uranium ore. Adding 0.5g microcrystalline cellulose can improve the bonding property of ore, improve the stability of the sample prepared by experiment, and reduce the influence of sample analysis on the metal parts of the instrument and the detection effect. |
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