A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography
Background210Bi is one of the most important interferences in the analysis of 90Sr by extractive chromatography. It is verified by the leaching curve that bismuth and yttrium are completely adsorbed on the chromatographic column in the bis(2-ethylhexyl) phosphate (HDEHP) extraction chromatography, a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Science Press
2022-05-01
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| Series: | He jishu |
| Subjects: | |
| Online Access: | https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050301&lang=zh |
| _version_ | 1828039762539184128 |
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| author | LI Meili LI Qiaoqin DENG Yuyang QIN Lianjing DENG Fei |
| author_facet | LI Meili LI Qiaoqin DENG Yuyang QIN Lianjing DENG Fei |
| author_sort | LI Meili |
| collection | DOAJ |
| description | Background210Bi is one of the most important interferences in the analysis of 90Sr by extractive chromatography. It is verified by the leaching curve that bismuth and yttrium are completely adsorbed on the chromatographic column in the bis(2-ethylhexyl) phosphate (HDEHP) extraction chromatography, and this two components can not be completely separated, resulting in higher measurement results of 90Sr.PurposeThis study aims to provide a modified method to eliminate 210Bi interference in the analysis of 90Sr by bis(2-ethylhexyl) phosphate (HDEHP) extraction chromatography.MethodsBy collecting the eluent, measuring the content of strontium, yttrium, lead and bismuth in the eluent and drawing the leaching curve, the adsorption and elution behavior of strontium, yttrium, lead and bismuth in the P204 resin were investigated. The residual 210Bi after column separation was experimentally removed by Bi2S3 precipitation or by measuring the sample source repeatedly and correcting the result with formulas.ResultsThe experimental results show that the relative deviation between the modified 90Sr activity and the reference value is within 23% when the activity ratio of 210Bi to 90Sr is not bigger than 5. The results of 90Sr calculated by the modified method for environmental samples are in good agreement with the measured results after bismuth removal by Bi2S3 precipitation.ConclusionsThe interference of 210Bi in the analysis of 90Sr by extractive chromatography can be eliminated by measuring the sample source repeatedly and correcting the result with formulas. |
| first_indexed | 2024-04-10T16:46:04Z |
| format | Article |
| id | doaj.art-f4dcd35b74b048d5bec6f728609b0647 |
| institution | Directory Open Access Journal |
| issn | 0253-3219 |
| language | zho |
| last_indexed | 2024-04-10T16:46:04Z |
| publishDate | 2022-05-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj.art-f4dcd35b74b048d5bec6f728609b06472023-02-08T00:53:34ZzhoScience PressHe jishu0253-32192022-05-01455344010.11889/j.0253-3219.2022.hjs.45.0503010253-3219（2022）05-0034-07A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatographyLI MeiliLI QiaoqinDENG YuyangQIN LianjingDENG FeiBackground210Bi is one of the most important interferences in the analysis of 90Sr by extractive chromatography. It is verified by the leaching curve that bismuth and yttrium are completely adsorbed on the chromatographic column in the bis(2-ethylhexyl) phosphate (HDEHP) extraction chromatography, and this two components can not be completely separated, resulting in higher measurement results of 90Sr.PurposeThis study aims to provide a modified method to eliminate 210Bi interference in the analysis of 90Sr by bis(2-ethylhexyl) phosphate (HDEHP) extraction chromatography.MethodsBy collecting the eluent, measuring the content of strontium, yttrium, lead and bismuth in the eluent and drawing the leaching curve, the adsorption and elution behavior of strontium, yttrium, lead and bismuth in the P204 resin were investigated. The residual 210Bi after column separation was experimentally removed by Bi2S3 precipitation or by measuring the sample source repeatedly and correcting the result with formulas.ResultsThe experimental results show that the relative deviation between the modified 90Sr activity and the reference value is within 23% when the activity ratio of 210Bi to 90Sr is not bigger than 5. The results of 90Sr calculated by the modified method for environmental samples are in good agreement with the measured results after bismuth removal by Bi2S3 precipitation.ConclusionsThe interference of 210Bi in the analysis of 90Sr by extractive chromatography can be eliminated by measuring the sample source repeatedly and correcting the result with formulas.https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050301&lang=zhstrontium-90bismuth-210eliminate 210bi interferenceextraction chromatographycorrection method |
| spellingShingle | LI Meili LI Qiaoqin DENG Yuyang QIN Lianjing DENG Fei A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography He jishu strontium-90 bismuth-210 eliminate 210bi interference extraction chromatography correction method |
| title | A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography |
| title_full | A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography |
| title_fullStr | A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography |
| title_full_unstemmed | A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography |
| title_short | A modified method to eliminate 210Bi interference in the analysis of 90Sr by extractive chromatography |
| title_sort | modified method to eliminate 210bi interference in the analysis of 90sr by extractive chromatography |
| topic | strontium-90 bismuth-210 eliminate 210bi interference extraction chromatography correction method |
| url | https://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.050301&lang=zh |
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