Maximizing the FTIR-ATR Depth of Penetration
The capability of the VeeMAX III with ATR to maximize sensitivity by using the accessory’s variable angle feature and a low RI ATR material, ZnS, is investigated.
Fringe-Free Transmission Measurements of Films
A polymer film was measured at Brewster’s angle to eliminate interference fringing in the IR spectrum. This technique is beneficial for the analysis of additives.
Measuring Low-Concentration Liquids Via FT-IR
Liquid samples were analyzed by infrared using fixed pathlength transmission cells and ATR.
Perfect Pellet Making
A clear KBr pellet minimizes IR scattering and provides the highest quality IR sample spectra. Here, we review how to make the perfect pellet for your application.
Monitoring Crystallization of Oil via FT-IR-ATR
The crystallization of coconut oil was measured via FT-IR-ATR at 1-min intervals during a precision cooling ramp, using the MIRacle Peltier.
Chemical Imaging of Berry Seed Cross Section
A section of a fruit berry seed was chemically imaged with infrared spectromicroscopy revealing domains of phospholipid-rich regions from the cell walls of the seed’s skin.
Low-volume ATR Measurements of Oils
Using a low-volume, multiple reflection ATR, infrared spectra of new and in-service motor oil were collected. Example spectra are presented.
Detecting Solvent Impurities Via ATR
FTIR-ATR sampling was used to detect contaminants in acetone. By evaporating the solvent directly onto the ATR crystal, the impurities were easily measured.
Automated Macro-Mapping via Reflection Sampling
Using an automated FT-IR reflection sampling accessory, the surface of a polymer-coated aluminum film was analyzed. Results were used to investigate chemical uniformity.
Multiple Reflection, Variable Angle ATR for Optimized Data
Here, we explore the benefits of using a multiple reflection, variable angle attenuated total reflectance (ATR) instrument to generate the most informative spectral data. c
Non-destructive, Diffuse Reflection Measurements of Solids
A useful, non-destructive sampling technique for the analysis of non-particulate solids is demonstrated. Diffuse reflection and ATR spectra are compared.
Quantifying Ethanol in Hand Sanitizer via Automation
The concentration of ethanol in hand sanitizer was determined using a calibration developed with an automated ATR sampling accessory.
Observation of Methanol in Ethanol Using Automated ATR Spectroscopy
SEIRAS-optimized ATR Wafers for Interfacial Spectroelectrochemistry
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.
Automated Specular Measurements of a Thin Film
Surface-Sensitive Spectroelectrochemistry with ATR-SEIRAS