A smartphone-based dual-channel flame photometric platform and application in ratiometric determination of potassium ions †

Key Points

• The aim is to develop a smartphone-based platform for measuring potassium ions through flame photometry.
• Developed a dual-channel flame photometric platform built for smartphone integration.
• Enabled on-site testing by simplifying the measurement process.
• Conducted tests using specific test solutions to evaluate platform performance.
• Successfully determined potassium ion concentrations with high accuracy using the new platform.
• Facilitated on-site testing, enhancing accessibility to potassium measurement.
• Demonstrated efficient performance in various test conditions.