Designing a novel paper-based microfluidic disc for rapid and simultaneous determination of multiple nutrient salts in water

In the face of worsening water quality and escalating water environmental emergencies, this study developed a paper-based microfluidic disk for rapid, on-site determination of ammonia nitrogen, nitrates, nitrites, and phosphates in water. The method utilizes centrifugal microfluidics and paper-based...

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Bibliographic Details
Published in:Analyst (London) 2024-11, Vol.149 (22), p.5563-5571
Main Authors: Sun, Zhentao, Zhao, Youquan, Liu, Yameng, Chen, Chen, Chen, Hao
Format: Article
Language:English
Subjects:
Ammonia
Coefficient of variation
Microfluidics
Nitrites
Nutrients
Onsite
Phosphates
Reagents
Water quality
Water sampling
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Summary:In the face of worsening water quality and escalating water environmental emergencies, this study developed a paper-based microfluidic disk for rapid, on-site determination of ammonia nitrogen, nitrates, nitrites, and phosphates in water. The method utilizes centrifugal microfluidics and paper-based technology, thus simplifying the operation while eliminating the need for on-site reagent preparation. Experimental results demonstrate that the disk requires only 80 microliters of a water sample and 2 minutes to complete the quantitative analysis of the four nutrients, with a coefficient of variation below 1.72% and spike recoveries ranging from 92% to 113%. The development of the disk provides an effective and rapid, on-site testing tool for water quality analysis. A paper-based microfluidic disc is used for the rapid determination of various nutrients in water.
ISSN:0003-2654
1364-5528
1364-5528
DOI:10.1039/d4an01127a