Fluorescence

Jun 08, 2016
By Spectroscopy Editors
Total reflection x-ray fluorescence (TXRF) spectrometry is an energy-dispersive x-ray technique that is used for elemental and chemical analysis, and is especially suitable for small-sample analyses. Ursula Fittschen, an assistant professor at Washington State University, is working on elemental microscopy and micro analysis. She has been using TXRF to analyze stainless steel metal release, and also airborne silver nanoparticles (NPs) from fabrics. Here, she describes the advantages and challenges of this technique.
Nov 12, 2015
Spectroscopy
Application of simultaneous absorbance and fluorescence excitation-emission matrix (EEM) analysis to identify and classify freshwater planktonic algal species. Main foci were two major potentially toxic cyanobacterial species associated with algal bloom events in the Great Lakes.
May 14, 2015
Spectroscopy
Time‐resolved fluorescence can analyze potential health benefits from antioxidant activity of curcumin, found in turmeric. Curcuminoids, weakly fluorescent in aqueous solution, show quantum yield increases upon interaction with a protein, such as human serum albumin.
May 14, 2015
Spectroscopy
LabSpec 6 MultiWell moduleand HORIBA Raman systems enable nondestructive analysis with high throughput screening using arrayed sampling devices,automated sample movement, autofocus devices, and automated data acquisition to acquire spectra from hundreds of samples sequentially.
Mar 14, 2014
Spectroscopy
By Spectroscopy Editors
Here, Li2CaSiO4:Sm3+ reddish orange phosphors were synthesized by a solid-state reaction method and examined by spectroscopic methods.
Sep 05, 2012
Spectroscopy
By Spectroscopy Editors
An interview with Mickey Myrick and Tammi Richardson of the University of South Carolina
May 18, 2012
Spectroscopy
By Spectroscopy Editors
An interview with Justin Cooper, winner of a 2011 FACSS Innovation Award. Part of a new podcast series presented in collaboration with the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS), in connection with SciX 2012 ? the Great Scientific Exchange, the North American conference (39th Annual) of FACSS.
Jan 01, 2012
Spectroscopy
By Spectroscopy Editors
The basic techniques of fluorescence correlation spectroscopy (FCS) are discussed as well as several applications, such as nanoparticle dispersion studies.
Sep 01, 2011
Spectroscopy
By Spectroscopy Editors
The advantages and disadvantages of measuring mercury with cold vapor atomic absorption spectroscopy, cold vapor atomic fluorescence spectroscopy, and direct analysis by thermal decomposition are explained.
Jul 01, 2011
Spectroscopy
By Spectroscopy Editors
From the field to the synchrotron, XRF is expanding its power and scope.
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