Design of an automatic spectrophotometric system

Area of Science:

• Analytical Chemistry
• Instrumentation Science

Background:

• Quinine determination in beverages is crucial for quality control.
• Conventional spectrofluorometric methods can be time-consuming and reagent-intensive.

Purpose of the Study:

• To develop an automated, cost-effective, and environmentally friendly system for quinine analysis in soft drinks.
• To leverage 3D printing technology for creating a compact analytical device.

Main Methods:

• A Multi-Syringe Flow Injection Analysis (MSFIA) system was designed and fabricated using 3D printing.
• The system incorporates a CCD detector and an LED radiation source for fluorometric detection.
• Data acquisition and processing were automated using the AutoAnalysis program via USB connection.

Main Results:

• The developed MSFIA system achieved accurate and precise determination of quinine in soft drinks.
• Performance metrics surpassed those of manual methods using conventional spectrofluorometers.
• The system demonstrated reduced reagent consumption and environmental impact.

Conclusions:

• The 3D-printed MSFIA fluorometric system is a viable and superior alternative for routine quinine analysis.
• This approach offers significant advantages in terms of accuracy, precision, cost, and sustainability.
• The integration of 3D printing in analytical instrumentation opens new possibilities for accessible lab equipment.