Special Issues-08-01-2019

Click the title above to open the Spectroscopy August 2019 Special Issue, IR Spectroscopy for Today's Spectroscopists, in an interactive PDF format.

Mid-infrared spectroscopy is applied as a primary technique to better understand the bio- and ultraviolet-transformation of soil microbial biomass. Soil microbial biomass constitutes as much as 50% organic carbon in soil organic matter, and therefore plays a crucial role in soil-atmospheric chemistry. In this study, the spatial distribution of microbial-derived organic structures on kaolinite and montmorillonite clay minerals was investigated.

A new infrared spectroscopy technique, microfluidic modulation spectroscopy (MMS), delivers reproducible protein characterization over close to four orders of magnitude in protein concentration (from 0.1 to 200 mg/mL). This technique characterizes samples from the earliest stages of development through to manufacture.

Near infrared (NIR) reflection spectroscopy and multivariate analysis have been used to characterize materials relating to an injection mold barrel purging process. NIR was compared to attenuated total reflectance-mid-infrared (ATR-MIR) spectral measurements to assess whether the NIR measurement was relevant to either the surface or the bulk of the samples.