Spectrophotometric determination of basic fuchsin from various water samples after vortex assisted solid phase...

Area of Science:

• Analytical Chemistry
• Environmental Science
• Materials Science

Background:

• Basic fuchsin is a dye that can contaminate water sources.
• Accurate detection of basic fuchsin is crucial for water quality assessment.
• Existing methods for basic fuchsin detection can be time-consuming or complex.

Purpose of the Study:

• To develop a rapid and efficient method for basic fuchsin separation and preconcentration.
• To utilize reduced graphene oxide as a novel solid-phase extraction material.
• To determine basic fuchsin in various water samples using spectrophotometry.

Main Methods:

• Vortex-assisted solid-phase extraction (SPE) using reduced graphene oxide (rGO).
• Synthesis and characterization of rGO via X-ray diffraction, SEM, and BET.
• Spectrophotometric determination of basic fuchsin at 554 nm.
• Optimization of SPE parameters including pH, contact time, adsorbent amount, and eluent volume.

Main Results:

• The optimized method achieved a preconcentration factor of 400.
• The limit of detection (LOD) was as low as 0.07 μg L⁻¹.
• The adsorption capacity of rGO was determined to be 34.1 mg g⁻¹.
• The method demonstrated good linearity (50-250 μg L⁻¹) and precision (RSD 1.2%).

Conclusions:

• The developed vortex-assisted SPE method with rGO is a fast, simple, and effective technique for basic fuchsin analysis.
• The method shows high sensitivity and efficiency, suitable for environmental water sample analysis.
• Reduced graphene oxide is a promising adsorbent material for the preconcentration of basic fuchsin.