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Related Experiment Video

Updated: Jul 6, 2026

Highly Sensitive and Rapid Fluorescence Detection with a Portable FRET Analyzer

Highly Sensitive and Rapid Fluorescence Detection with a Portable FRET Analyzer

Published on: October 1, 2016

A multi-source portable light emitting diode spectrofluorometer.

Safwan Obeidat¹, Baolong Bai, Gary D Rayson

¹Box 30001 MSC 3C, Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003-0001, USA.

Applied Spectroscopy

|March 15, 2008

Summary

This summary is machine-generated.

A new portable spectrofluorometer uses LED light sources for analysis. This lightweight instrument effectively analyzes complex samples like plant and animal feed extracts.

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Area of Science:

Analytical Chemistry
Spectroscopy
Instrumentation

Background:

Traditional spectrofluorometers can be bulky and expensive.
Portable analytical instruments are needed for field applications.

Purpose of the Study:

To develop and evaluate a portable luminescence spectrofluorometer.
To assess its capability for analyzing complex mixtures and biological samples.

Main Methods:

Utilized multiple light-emitting diodes (LEDs) as excitation sources.
Generated excitation-emission matrices (EEMs) for spectral analysis.
Applied multi-way principal component analysis (MPCA) for data interpretation.

Main Results:

Achieved low limits of detection for common fluorophores (rhodamine 6G, rhodamine B, fluorescein).
Successfully analyzed mixtures of rhodamine B and fluorescein.
Differentiated between various plant and animal feed extracts using MPCA.

Conclusions:

The developed portable spectrofluorometer is a viable tool for analyzing complex samples.
Its lightweight design and LED excitation offer advantages for field-based analysis.
MPCA is effective for discerning sample constituents from EEM data.