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Articles

A novel method was developed for detecting Hg2+ in tobacco, with potential application to mercury detection in environmental water samples.

A Label- and Enzyme-Free Fluorescent Method for the Rapid and Simple Detection of Hg2+ in Cigarettes Using G-Triplexes as the Signal Reporter

Howard Mark serves on the Editorial Advisory Board of 

 and runs a consulting service, Mark Electronics that provides assistance, training, and consultation in near-IR spectroscopy as well as custom hardware and software design and development.

Our annual review of products introduced at Pittcon or during the previous year

Review of New Spectroscopic Instrumentation 2019

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.

Total Reflection X-Ray Fluorescence Spectrometry for Metals and Nanoparticle Analysis

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.

Harmful Algal Bloom Species and Identification Strategies

LabSpec 6 MultiWell module and HORIBA Raman systems enable non-destructive 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.

High Throughput Chemical Screening with the LabSpec 6 MultiWell Module

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.

Dye-Protein Binding Monitored in a Microliter Volume Using Time-Resolved Fluorescence

Here, Li2CaSiO4:Sm3+ reddish orange phosphors were synthesized by a solid-state reaction method and examined by spectroscopic methods.

X-ray Diffraction and Fluorescence Spectroscopy Analysis of Sm3+ in Lithium Calcium Silicate

Podcasts

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.

Tracking Molecular Transport in Chromatographic Particles with Single-Molecule Fluorescence Imaging

The basic techniques of fluorescence correlation spectroscopy (FCS) are discussed as well as several applications, such as nanoparticle dispersion studies.

Tracking Unknown Intracellular Activity with Fluorescence Correlation Spectroscopy

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.