Fluorescence spectroscopy is an optical spectroscopic method that has been applied for the assessment of environmental quality extensively during the last 20 years. Most of the earlier works have used conventional light sources in spectrofluorometers to assess quality. Many recent works have used laser sources of light for the same purpose. The improvement of the energy sources and of the higher resolution spectrometers has led to a tremendous increase in applications. The motivation for the present review study is the increasing use of laser sources in environmental applications. The review is divided in two parts. The fundamental principles of fluorescence spectroscopy are described in the first part. The environmental applications are described in the second part.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370042 | PMC |
| http://dx.doi.org/10.3390/molecules27154801 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ways to Measure Metals: From ICP-MS to XRF.
Curr Environ Health Rep
January 2025
School of Health Sciences, Purdue University, West-Lafayette, IN, 47906, USA.
Purpose Of Review: This review explores the use of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and X-ray Fluorescence (XRF) for quantifying metals and metalloids in biological matrices such as hair, nails, blood, bone, and tissue. It provides a comprehensive overview of these methodologies, detailing their technological limitations, application scopes, and practical considerations for selection in both laboratory and field settings. By examining traditional and novel aspects of each method, this review aims to guide researchers and clinical practitioners in choosing the most suitable analytical tool based on their specific needs for sensitivity, precision, speed, and sample preparation.
View Article and Find Full Text PDFOptical assessment of heroin using laser-induced fluorescence spectroscopy based on modified Beer-Lambert formalism.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Department of Chemistry, Isfahan University of Technology P. O. Box 84156-833111 Isfahan, Iran.
Heroin as a derivative of morphine contains the alkaloids and flavonoids with plenty of three to five aromatic rings. The latter is known as the main source of fluorescence emission after laser excitation. Here, laser induced fluorescence (LIF) spectroscopy at excitation line of 405 nm with the solvent densitometry method is introduced based on modified Beer-Lambert (MBL), for the rapid and reliable identification of street heroin samples.
View Article and Find Full Text PDFSynchrotron XRF spectroscopy for reading salt-encrusted cuneiform tablets.
Sci Rep
January 2025
Department of Languages and Cultures, Ghent University, Blandijnberg 2, 9000, Ghent, Belgium.
Cuneiform tablets were a primary writing medium in the ancient Near East from the late fourth millennium BCE to the first century CE. Although these clay tablets were durable for daily use, prolonged burial over millennia has made them vulnerable to salt damage. Fluctuations in temperature and humidity cause the migration of salts to the surface of the tablets, damaging them and covering the inscriptions, making the text unreadable.
View Article and Find Full Text PDFMechanism of dsDNA binding, enzyme inhibition, antioxidant activities, and molecular docking studies of taxifolin, daidzein, and S-equol.
Int J Biol Macromol
January 2025
Afsin Vocational School, Department of Chemistry and Chemical Processing Technologies, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey. Electronic address:
This study investigated the binding mechanism of taxifolin (TA), daidzein (DA), and S-equol (SQ) flavonoids with fish sperm double helix DNA (dsDNA) under the simulated physiological pH condition using UV-Vis and photoluminescence spectroscopy, as well as viscometric methods. Binding constants (K) for the flavonoids to dsDNA were determined as 1.8 × 10 M for SQ, 1.
View Article and Find Full Text PDFQuantifying structural changes in organised biomineralized surfaces using synchrotron Polarisation-induced Contrast X-ray Fluorescence.
Acta Biomater
January 2025
Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, United Kingdom.
The quantitative characterization of the structure of biomineral surfaces is needed for guiding regenerative strategies. Current techniques are compromised by a requirement for extensive sample preparation, limited length-scales, or the inability to repeatedly measure the same surface over time and monitor structural changes. We aim to address these deficiencies by developing Calcium (Ca) K-edge Polarisation Induced Contrast X-ray Fluorescence (PIC-XRF) to quantify hydroxyapatite (HAp) crystallite structural arrangements in high and low textured surfaces.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!