植红蛋白-硝化纤维素试纸检测水中铜离子的研究

IF 0.6 4区化学 Q4 CHEMISTRY, APPLIED

Russian Journal of Applied Chemistry Pub Date : 2025-05-13 DOI:10.1134/S107042722501001X

Jionghua Xiang, Qinying Lai, Qiming Wu, Yucang Zhang, Haiqi Wang

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引用次数: 0

摘要

将藻红蛋白负载在活化的硝化纤维素膜上，制备了水中铜离子含量的藻红蛋白-硝化纤维素试纸（PNTP），该试纸可用于废水的测试。通过比色法考察其在不同pH值和各种附加金属离子下的检测能力。确定了PNTP的最佳制备条件为料液比为1:1，PE浓度为0.04 mg/mL。同时，我们的实验也证明了它对铜离子的特异性。实验结果表明，在pH为3和4时，铜离子的检测精度为10 mg/L，在pH为5和7时为0.01 mg/L，在pH为6和8时为0.1 mg/L。满足大多数水质监测的要求，适用于水中铜离子浓度的现场快速检测。

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Study on the Detection of Copper Ions in Water by Phycoerythrin-Nitrocellulose Test Paper

The Phycoerythrin-Nitrocellulose test paper (PNTP) for the content of copper ions in water is prepared by loading the Phycoerythrin on activating nitrocellulose membrane, which can be used on the test of wastewater. Its detection ability is explored under different pH values and various additional metal ions through the colorimetry. The optimal conditions of PNTP preparation have been determined to be the material/liquid ratio of 1 : 1 and PE concentration of 0.04 mg/mL, respectively. Meanwhile, its specificity for detection copper ions has been proved by our experiments. Our experimental results show that the detection accuracy of copper ions reaches 10 mg/L at pH 3 and 4, 0.01 mg/L at pH 5 and 7, and 0.1 mg/L at pH 6 and 8. This meets the requirements of most water quality monitoring and is suitable for on- site rapid detection of copper ion concentration in water.

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.