Single-Image-Referenced Colorimetric Water Quality Detection Using a Smartphone

作者：Volkan Kılıç, Gazihan Alankuş, Nesrin Horzum, Ali Yener Mutlu, Abdullah Bayram, Mehmet E. Solmaz · 发表于：ACS Omega · 年份：2018 · DOI：10.1021/acsomega.8b00625 · 被引用次数：81 · 研究领域：Biosensors and Analytical Detection、Advanced biosensing and bioanalysis techniques、Water Quality Monitoring Technologies

In this paper, we present a smartphone platform for colorimetric water quality detection based on the use of built-in camera for capturing a single-use reference image. A custom-developed app processes this image for training and creates a reference model to be used later in real experimental conditions to calculate the concentration of the unknown solution. This platform has been tested on four different water quality colorimetric assays with various concentration levels, and results show that the presented platform provides approximately 100% accuracy for colorimetric assays with noticeable color difference. This portable, cost-effective, and user-friendly platform is promising for application in water quality monitoring.