Application Notebook-02-01-2019

Several spectroscopic measurement techniques are proving to be very effective and versatile for environmental applications.

Single reaction chamber (SRC) microwave digestion offers significant benefits over traditional microwave digestion for pharmaceutical samples: higher sample throughput, reduced labor and consumables costs, simplified workflow, and superior digestion quality.

In this study, we compare the performance of Glass Expansion’s most popular concentric nebulizer designs for ICP-OES applications, as well as a parallel-path nebulizer from another vendor, providing a complete selection guide based on performance and design.

For miniaturization of devices, nanoscale BT research has been actively conducted, along with research on the enhanced dielectric properties of nano-capacitor materials.

The emission wavelength of graphene oxide is tuned through photothermal reduction and the spectral shift monitored using photoluminescence spectroscopy to achieve the desired emission.

Sampling flexibility is a significant benefit of Raman spectroscopy.

This application note describes the advantages of a simplified process of searching through Raman spectral databases and creating new ones for example, based on user generated data.

This applications note compares the sensitivity of a single-reflection ATR to multiple-reflection ATR for the nitrile functional group infrared transition.

This article introduces a new infrared (IR) technique, microfluidic modulation spectroscopy (MMS), that is designed to address these needs, and presents data from measurements of commercially available proteins. The data demonstrate significant increases in sensitivity, dynamic range, and utility for the determination of protein similarity (fingerprinting), quantitation, protein secondary structure, and protein stability and aggregation through thermal and chemical denaturation methods.

We show that a microgrooved ATR-SEIRAS optimized Si ATR wafer designed to allow high angles of incidence at the electrode-solution interface provides improved signal-to-noise in electrochemical ATR-SEIRAS.

Exploration of the chemistry of materials at micrometer and nanometer scales leads to a better macroscopic perspective, as illustrated here with examples from our ongoing research in materials, environmental, and biomedical applications

Click the title above to open the Spectroscopy February 2019 special issue, Vol 34 No s2, in an interactive PDF format.