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A simple platform with moving drops for downscaling chemical analysis incorporating smartphone detection
Sutasinee Apichai1, Kajorngai Thajee1, Wasin Wongwilai2
1Center of Excellence for Innovation in Analytical Science and Technology, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
Abstract:
A simple cost-effective device for downscaling chemical analysis with microliter-scale dropwise handing and smartphone detection is proposed. The platform was made from easily available materials. Drops of constant volume of analyte and reagent were placed onto a channel then moved by gravity force to mix and react with each other. The color change due to reaction was monitored with a smartphone. Assays of iron, copper and phosphate employing the platform were demonstrated with 1,10-phenanthroline, bicinchoninic acid and molybdate reagents, respectively. Kinetic study was also demonstrated for this simple device.
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