ArticleAnalytical sciences : the international journal of the Japan Society for Analytical Chemistry2022
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device.
Article in Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 13 citations in OpenAlex.
- A 3D Microfluidic Paper-Based Analytical Device with Smartphone-Based Colorimetric Readout for Phosphate Sensing.Sensors (Basel, Switzerland) · 2026Article
- A Review of Recent Developments in Analytical Methods for Determination of Phosphorus from Environmental Samples.Molecules (Basel, Switzerland) · 2025Review
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4 authors at 3 institutions in 2 countries.
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Abstract
A simple one-step drawing for the cost-effective fabrication of microfluidic paper-based analytical devices (µPADs) for the determination of phosphate content in water and fertilizer samples is presented in this paper. The hydrophobic barrier of µPAD was patterned using a 2-mm tip marker pen using a transparent acrylic sheet template. The molybdenum blue reaction using ascorbic acid as a reducing agent was used. A pre-concentration step of samples is proposed to improve the sensitivity of the measurement. The blue complex produced on the µPADs was recorded using a smartphone camera. The color intensities (red, green, blue and gray) were analyzed using ImageJ program. The proposed µPAD method provides a linear calibration range from 0 to 100 mg L
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