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The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 15 (2010) pp 5-9

A Hand-Held Spectrofluorometer to Help Students Understand Excitation and Emission of Fluorescing Solutions

Tussatrin Kruatong, Chanya Dahsah, and Bhinyo Panijpan*

Institute for Innovative Learning, Mahidol University, Bangkok, Thailand,
Received November 28, 2008. Accepted June 26, 2009.

Published: 9 January 2010

Abstract. A hand-held spectrofluorometer with a grating for spectral analysis was constructed for helping secondary students understand excitation and emission of fluorescing solutions. It was designed to give students hands-on experience with light properties of fluorescent (merbromin, chlorophyll) and non-fluorescent (food coloring) solutions and allows students to qualitatively and visually investigate different emitted and transmitted lights.

Key Words: Laboratories and Demonstrations; general chemistry

(*) Corresponding author. (E-mail: Thailand,

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