Integrated polysaccharides via amidation for sensitive electrochemical detection of heavy metal ions

doi:10.1007/s10854-022-07963-x

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	Integrated polysaccharides via amidation for sensitive electrochemical detection of heavy metal ions
	Chen, Jinliang; Zhang, Mengmeng; Liao, Quanxing; Wang, Letong; Li, Hongxia; Niu, Xiaohui; Liu, Xiaoyu; Wang, Kunjie
刊名	Journal of Materials Science: Materials in Electronics
	2022-04-01
卷号	33 期号:10 页码:8140-8150
关键词	Chemical detection Chitosan Electrochemical sensors Glass membrane electrodes Health hazards Heavy metals Honeycomb structures Hydrophilicity Signal to noise ratio Sodium alginate Stripping voltammetry Amidation Chitosan complex Copper ions Crosslinked ELectrochemical detection Glassy carbon electrodes Heavy metal ion Hollow structure Metal copper Polar functional groups
ISSN号	0957-4522
DOI	10.1007/s10854-022-07963-x
英文摘要	In this work, polysaccharide sodium alginate(SA) and chitosan(CS) were aminated and crosslinked to form honeycomb structure with hollow structure sodium alginate-chitosan complex (SA-CS). The honeycomb structure with hollow structure generated by crosslinked polysaccharides exposed the polar functional groups of SA and CS compared with individual SA and CS, resulting in a significant increase in the hydrophilicity of SA-CS. Excessive intake and accumulation of Cu2+ will cause health hazards to the human body, animals and plants, and some diseases will appear. Therefore, we need to develop suitable detection methods. We modified the integrated polysaccharide complex SA-CS on the surface of the glassy carbon electrode (GCE), and optimized the experimental conditions of SA-CS/GCE for the detection of heavy metal copper ions by differential pulse voltammetry (DPV). Since the cross-linked SA-CS increases the recognition sites for Cu2+ while exposing functional groups, it has high selective coordination ability for SA-CS/GCE to Cu2+, and can realize the selective detection of Cu2+. There is a good linear relationship between a series of different concentrations of Cu2+ and peak current, the linear range is 1–100 μmol L−1, the obtained standard curve is ipc(μA) = 0.08172X (μmol L−1) + 2.201, R2 = 0.9919, the detection limit is 0.9545 μmol L−1 when the signal-to-noise ratio is at 3. Therefore, the SA-CS polysaccharide complex is expected to be constructed as a non-toxic, non-polluting, electrochemical sensor that selectively detects heavy metal copper ions in water. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	Springer
WOS记录号	WOS:000762887700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158035]
专题	石油化工学院
作者单位	College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Jinliang,Zhang, Mengmeng,Liao, Quanxing,et al. Integrated polysaccharides via amidation for sensitive electrochemical detection of heavy metal ions[J]. Journal of Materials Science: Materials in Electronics,2022,33(10):8140-8150.
APA	Chen, Jinliang.,Zhang, Mengmeng.,Liao, Quanxing.,Wang, Letong.,Li, Hongxia.,...&Wang, Kunjie.(2022).Integrated polysaccharides via amidation for sensitive electrochemical detection of heavy metal ions.Journal of Materials Science: Materials in Electronics,33(10),8140-8150.
MLA	Chen, Jinliang,et al."Integrated polysaccharides via amidation for sensitive electrochemical detection of heavy metal ions".Journal of Materials Science: Materials in Electronics 33.10(2022):8140-8150.