Column: Molecular Spectroscopy Workbench

 is the Principal Raman Applications Scientist for Horiba Scientific in Edison, New Jersey.

Articles

Raman spectroscopy has the capability of accurately determining the physical and chemical properties of bioplastics (polyhydroxybutyrate hexanoate [PHBHx]), which helps determine the maximum crystallinity a polymer can experience.

Calibrating the Composition of a Copolymer

Studying the crystallinity of biodegradable polymers can be done without the complexity of larger instruments. Here’s how.

Measuring the Crystallinity of PHBHx with Varying Amounts of Sidechains on a Benchtop Instrument

Extractables and leachable are typically studied using chromatographic techniques. This study explores what we can learn by using from using Raman microscopy for such studies.

Exploration of the Use of Raman Microscopy to the Identification of Extractables and Leachables from Polymeric Containers

Here, we explain how Raman spectroscopy is valuable for characterizing industrially important carbon materials.

Use of Raman Spectroscopy to Qualify Carbon Materials

Raman spectra can help determine protein structure. Here’s how.

Interpretation of Raman Spectrum of Proteins

David Tuschel is a Raman applications manager at Horiba Scientific in Edison, New Jersey, where he works with Fran Adar. David is sharing authorship of the "Molecular Spectroscopy Workbench" column with Fran.

We explain how to characterize barium fluorohalides with Raman spectroscopy.

Raman Spectroscopy and Chemical Bonding of BaFCl, BaFBr, and BaFl

Innovative database search technology can help Raman spectroscopists identify molecular vibrations; here, we show how to use these tools more effectively.

A Simple Introduction to Raman Spectral Identification of Organic Materials

To better understand Raman spectral profiles, we briefly examine spectral line shapes, while discussing spectral shape, bandwidth, and broadening as percentage of Gaussian and Lorentzian components.

Peak Shape and Closely Spaced Peak Convolution in Raman Spectra

We illustrate how matching the optical properties of the microscope objective with the sample properties improves the spatial resolution and chemical speciation in depth profile measurements using confocal Raman microscopy.

Effect of Sampling Optics on Raman Depth Profiling

Raman and photoluminescence spectroscopy were combined with imaging to examine the spatial variation of solid-state structure and electronic character of two-dimensional (2-D) tungsten disulfide (WS2) crystals, which represent a family of new inorganic 2-D materials.