Evidence map›Paper›PMID 42056604›Full record

ArticleAnalytical and bioanalytical chemistry2026

Propylsulfonic acid-bonded silica stationary phase through mercapto oxidation for chromatographic separation of rare earth elements.

Yuqing Wei, Chao Zhong, Hongwei Zhao, Qifang He, Bo Zhang, Hongdeng Qiu

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Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Yuqing Wei *Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
Chao Zhong *Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
Hongwei ZhaoKey Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
Qifang HeKey Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
Bo ZhangDepartment of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
Hongdeng QiuKey Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China. hdqiu@gia.cas.cn.

Funding

National Natural Science Foundation of China 22404160National Natural Science Foundation of China 22474141Strategic Priority Research Program of the Chinese Academy of Sciences XDB1220000
6 · The paper itself

Abstract

The selective separation and precise analysis of rare earth elements (REEs) in impurity-laden matrices constitute persistent challenges. Among available separation techniques, ion-exchange chromatography has gained prominence as an effective approach for REE purification. However, the quest for a high-performance stationary phase preparation method continues to be a focal point. Herein, a propylsulfonic acid-functionalized stationary phase (Sil-SH-SCX) was developed through γ-mercaptopropyl trimethoxysilane (MPTS) grafting followed by oxidation. The Sil-SH-SCX demonstrated excellent chromatographic performance, achieving efficient separation of REEs with resolution ranging from 4.2 to 12.6 for adjacent lanthanides. Besides, the Sil-SH-SCX column displayed high repeatability (RSD < 0.99%, n = 10) and stability (RSD < 1.5%, n = 30). Taking advantage of its excellent separation performance, Sil-SH-SCX was successfully applied for the sensitive determination of REEs with excellent linearity (R

Indexed as

Ion-exchange chromatographyRare earth elementsStationary phaseSulfonic acid functionalization

Identifiers

PMID42056604

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