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A solid-surface fluorescence study of Rhodamine B and fluorescein adsorbed onto a filter paper, and semi-quantitative determination using EEM data
AbstractIn this work, solid-surface fluorescence spectra of Rhodamine B (RhB) and fluorescein (FLU), two extensively used fluorophores, were studied...
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Fluorescence Spectroscopy for Red Wine Authentication
The molecular fingerprint obtained from fluorescence spectroscopy has been used in combination with chemometrics for the authentication of red wine...
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Rapid authentication of green tea grade by excitation-emission matrix fluorescence spectroscopy coupled with multi-way chemometric methods
Grade is an important parameter for indicating tea quality, which determines the price of tea. However, it is confusing for consumers to evaluate the...
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Monitoring Pilot-Scale Ultrasound Treatment of the Removal of Pesticide Residues from Fresh Zucchinis Using 2D and 3D Front-Face Fluorescence Spectroscopy
The removals of boscalid and pyraclostrobin residues from zucchinis by ultrasonic treatment were investigated at the laboratory and pilot scales...
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Excitation-emission matrix fluorescence spectroscopy combined with multi-way chemometric methods for rapid qualitative and quantitative analyses of the authenticity of sesame oil
Sesame oil (SO) is a high-quality and very popular edible oil with pleasant odor and good taste, which has higher economic and nutritional value than...
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Moisture as key for understanding the fluorescence of lignocellulose in wood
The fluorescence behaviour of lignocellulose in Pinus sylvestris L. was studied under the influence of moisture. Fluorescence...
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Monitoringthe Thermal Oxidation of Local Edible Oils by Fluorescence Spectroscopy Technique Coupled to Chemometric Methods
In the present work, a study on the thermo-degradation of local edible oils by using fluorescence spectroscopy is conducted. Diluted unrefined palm,...
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Combination of excitation-emission matrix fluorescence spectroscopy and chemometric methods for the rapid identification of cheaper vegetable oil adulterated in walnut oil
Walnut oil (WNO) is considered as natural functional food of high economic interest due to its nutritional and medicinal benefits. Adulteration in...
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Real-time and simultaneous assay of monophenolase and diphenolase activity in tyrosinase catalyzed cascade reactions by combination of three-way calibration and excitation-emission matrix fluorescence
A real-time assay for multiple enzyme activities in cascade reactions is required for research on metabolism and bioengineering. Tyrosinase has the...
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Investigating the characteristics of fluorescence features on sweet peppers using UV light excitation
Sweet peppers are popular worldwide due to their nutrition and taste. Conventional vegetable tracing methods have been trialed, but the application...
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Hybrid N-way Partial Least Squares and Random Forest Model for Brick Tea Identification Based on Excitation–emission Matrix Fluorescence Spectroscopy
Excitation-emission matrix fluorescence spectroscopy coupled with a hybrid N-way partial least squares and random forest (NPLS-RF) model was proposed...
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Fluorescence signal of proteins in birch pollen distorted within its native matrix: Identification of the fluorescence suppressor quercetin-3-O-sophoroside
The properties of biogenic aerosol strongly depend on the particle’s proteinaceous compounds. Proteins from primary biological aerosol particles...
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Effects of UV-A and UV-B Irradiation on Antioxidant Activity and Fluorescence Characteristics of Soybean (Glycine max L.) Seeds
AbstractPlant secondary metabolism, as well as the growth and development of specific photomorphogenic responses, can be induced by UV light. The...
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Biodegradation and Structural Modification of Humic Acids in a Compost Induced by Fertilization with Steelmaking Slag under Coastal Seawater, as Detected by TMAH-py-GC/MS, EEM and HPSEC Analyses
The compost’s humic acid (HA) content decreased when it was fertilized in coastal seawater with steelmaking slag, as confirmed. This study clarified...
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PARAFAC modeling of dandelion phenolic compound fluorescence relation to antioxidant properties
The phenolic compounds in dandelion were extracted using different ethanol percentage solutions, identified with HPLC-MS, and their scavenging...
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Quantum dots-based “chemical tongue” for the discrimination of short-length Aβ peptides
A “chemical tongue” is proposed based on thiomalic acid-capped quantum dots (QDs) with signal enrichment provided by excitation-emission matrix...
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Fast label-free identification of bacteria by synchronous fluorescence of amino acids
Fast identification of pathogenic bacteria is an essential need for patient’s diagnostic in hospitals and environmental monitoring of water and air...
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Excitation-emission fluorescence matrix acquired from glutathione capped CdSeS/ZnS quantum dots in combination with chemometric tools for pattern-based sensing of neurotransmitters
The presented work concerns pattern-based sensing with quantum dots for the identification and quantification of neurotransmitters by means of...
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UV-Vis Absorption and Fluorescence in Bioanalysis
This chapter revises the application of UV-Vis spectrophotometry and spectrofluorimetry in bioanalysis. It focuses on techniques that rely on the...
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Aggregation and disaggregation of Al2O3 nanoparticles: influence of solution pH, humic acid, and electrolyte cations
Extensive use of Al 2 O 3 nanoparticles in consumer and industrial products has led to concerns about their potential environmental impacts in the...
