Single Sponsored Spectroscopy Application Note Alert Having trouble viewing this email? Click here Quinine in Tonic Water Fluorescence spectroscopy can quantify the concentration of quinine in tonic water, if the instrument conditions are constant and the quinine is in a dilute acid solution. Identification of Oils Using Fluorescence Spectroscopy Synchronous fluorescence spectroscopy provides a useful tool to produce a simplified “fingerprint” for complex mixtures of fluorescent compounds. Measurement of Delayed Fluorescence and Phosphorescence Lifetimes The pulsing and detection parameters, controlled entirely electronically, make it possible to get precise control over these parameters using the FL 6500 and FL 8500. Measurement of Optical Brightening Agents in Samples Using the FL 6500 Fluorescence Spectrometer and Solid Sample Holder Optical brightening agents (OBAs) are dyes commonly used to increase the apparent whiteness and brightness of paper, textiles and detergents. Absolute Fluorescence Quantum Yields Using the FL 6500 Fluorescence quantum yield can be measured using two methods: the relative method and the absolute method. Validation of the Performance of the FL 6500 and FL 8500 for Pharmaceutical and Industrial Analysis Fluorescence is a relative technique – this means that a quantitative measurement requires a comparative measurement against a material of known concentration. Determination of Relative Fluorescence Quantum Yields Using the FL 6500 Fluorescence Spectrometer Unlike absolute quantum yield measurements, which require an integrating sphere, the relative method uses a standard single cell holder. Analysis of PAHs Mixture Using Synchronous Scan and 3D Scan Fluorescence spectroscopy has greater sensitivity than absorption spectrophotometry and, therefore, is useful for the detection and analysis of trace substances. Limits of Detection of Quinine Sulfate Using the FL 6500 and FL 8500 Fluorimeters According to ASTM E579-04 This technical note demonstrates the limits of detection of the FL 6500 and FL 8500 fluorimeters using quinine sulfate in 0.1 M sulfuric acid.