On-site quantitative analysis of As(III) and As(V) in aqueous phase using portable laser-induced fluorescence platform.

Lixia Feng, Qilong Bian, Shujun Wu, Tianyu Gao, Pei Zhang, Shujian Dai, Zebing Zeng, Sheng Xie

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Article in Communications engineering, 2025. 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

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8 authors.

Lixia Feng *Shenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.

Qilong Bian *Shenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.

Shujun Wu *Shenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.

Tianyu GaoShenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.

Pei ZhangShanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.

Shujian DaiAnHui Bossco Environmental Protection Technology Co, Ltd, Nanning, 530007, China.

Zebing ZengShenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.ORCID http://orcid.org/0000-0002-6246-3911

Sheng XieShenzhen Research Institute of Hunan University, Nanshan District, Shenzhen 518000; State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China. shengxie@hnu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Arsenic contaminants exist in different chemical forms with varying toxicity and mobility, making on-site analysis challenging. Here, a fluorogenic method is developed for the efficient detection of arsenite and arsenate ions using a portable platform directly in an aqueous phase. During sensing, the aggregation-induced emission (AIE) probe TPE-Cys/TPE-2Cys exhibits low fluorescence when dissolved, but reacts with the As(III) to form organic arsenic complexes with low solubility, inducing a turn-on fluorescence for quantitative analysis. Using a prior reduction strategy, the As(V) can be converted to As(III) and further analyzed in a sequential detection. Using a specialized laser-induced fluorescence instrument, this strategy allows on-site analysis of As(III) and As(V) species with sensitivity down to 0.14 ppb in environmental samples, showing that As(III) dominates while the As(V)/As(III) ratio varies in a constitutional equilibrium. The system has potential for the practical analysis of complex arsenic, revealing the dynamic arsenic transformations in the environment.

Identifiers

PMID40739327

DOI10.1038/s44172-025-00473-8

PMCPMC12310942

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