Infrared (IR) Spectroscopy

In this short overview, we consider cases for diffuse reflection spectroscopy and introduce the Kubelka-Munk diffuse reflectance formula. We conclude by comparing diffuse transmittance, diffuse reflectance, logarithmic transforms of both, and the Kubelka-Munk transform for mid-infrared spectroscopy of the same sample.

A new FID-FM fusion model for infrared measurements of glucose in synthetic samples is proposed, comparing prediction performance to full PLS, SMR, XGBoost, CBR, and DSFPLS modeling methods.

ATR-FT-IR spectroscopy can provide rapid and portable measurements in forensic applications, demonstrating its ability to rapidly detect biomarkers and the presence of cocaine in fingernails.

Scientists have investigated the sorption mechanism of organic compounds on a mineral composite sorbent using infrared spectroscopy providing insights for the development of effective wastewater purification methods.

Webinar Date/Time: Tuesday, July 25th, 2023 Morning session: 9:30am EDT|6:30am PST|3:30pm CET|2:30pm GMT Afternoon session: 2pm EDT|11am PST|8pm CET|7pm GMT Wednesday,July 26th, 2023 Morning session: 9:30am EDT|6:30am PST|3:30pm CET|2:30pm GMT Afternoon session: 2pm EDT|11am PST|8pm CET|7pm GMT

The structure and infrared spectra of polyurethanes and polymeric amides are similar, but there are several key differences worth calling attention to.

A recent study utilized infrared microspectroscopy to investigate the chemical composition of psammoma bodies (PBs) in ovarian and thyroid cancer tissues.

A research team has utilized the Allan variance technique to analyze the performance characteristics of compact Fourier transform infrared (FT-IR) spectrometers. The study provides insights into the noise sources and instabilities of these handheld instruments, offering guidance for improving their accuracy and stability in real-time material detection and quantification applications.

A new study leverages Fourier transform infrared spectroscopy (FT-IR) to determine the geographical origin and assess the quality of Rosa roxburghii Tratt (RRT), providing valuable insights for functional food production.

The research highlights the significance of tissue preparation methods and demonstrates the feasibility of accurate classification, providing valuable insights into the biomolecular composition of ovarian cancer tissues.

Webinar Date/Time: Wednesday, June 21st, 2023 at 11am EDT | 8am PDT | 4pm BST | 5pm CEST

Researchers have developed a surface-enhanced infrared absorption (SEIRA) sensor platform using disk antennas with a double spacer, enabling the simultaneous detection of multiple molecules.

Scientists have investigated the structural changes of a discotic liquid crystal during its phase transitions using a combination of quantum chemical approaches and vibrational spectroscopy.

A study investigated the interactions of benzeneacetamide with other molecules in organic solvents by obtaining frequencies of C=O groups in 18 solvents using infrared spectroscopy, and correlated empirical parameters with the frequencies to estimate their contributions in intermolecular interactions, finding that solvent effects on the frequencies of C=O stretching vibrations were significant.

This interview with Young Jong Lee highlights the work he and his team have done to reinvent solvent absorption compensation (SAC), and the potential it has across multiple forms of spectroscopy.

A new study demonstrates the feasibility of using attenuated total reflection Fourier transform infrared (ATR FT-IR) mapping for the identification of the prescribed and abnormal ingredients of herbal powder preparations (HPPs) for medicines.

Slip agents are commonly used amide small molecules that lubricate the molds in injection molding processes. By studying the spectra of a primary amide, we can see how they can contaminate the spectra of polymeric materials.

Researchers have developed a sum frequency generation spectroscopy setup to characterize the output profile of an infrared free electron laser, providing valuable insight into the development of more efficient and accurate lasers.

In a recent study, attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FT-IR) was proven to be a cost-effective method for analyzing herapins in pharmaceutical applications.

Webinar Date/Time: Europe: Thursday, May 4, 2023, at 9 am BST | 10 am CEST North America: Thursday, May 4, 2023, at 11 am PDT | 2 pm EDT Asia: Friday, May 5, 2023, at 10:30am IST | 1 pm SST | 2 pm JST | 3 pm AEDT

Dmitry Kurouski has won the 2023 Emerging Leader in Molecular Spectroscopy Award for his molecular spectroscopy studies revolving around plants.

A smartphone-based, portable visible-near-infrared diffuse reflectance spectroscopy (DRS) method can perform pre-symptomatic detection of late blight disease in potato leaves.

Webinar Date/Time: Tue, Apr 11, 2023 1:00 PM EDT

Webinar Date/Time: Europe: Tuesday, May 9, 2023, at 3pm BST | 4pm CEST North America: Tuesday, May 9, 2023, at 11am PDT | 2pm EDT Asia: Wednesday, May 10, 2023, at 8:30am IST | 11am HKT | 12pm JST | 1pm AEDT

Craig Prater was named the 2023 recipient of the Williams-Wright Award, which is given out annually by the Coblentz Society. He was recognized at Pittcon 2023, which took place in Philadelphia, Pennsylvania.

The United States Pharmacopeia–National Formulary (USP–NF) has contributed to ensuring the quality of dietary supplements, foods, and medicines for more than 200 years. This overview explains the use of vibrational spectroscopy techniques in meeting USP–NF requirements and how the information is organized.

We study the spectra of organic nitrogen polymers with a particular focus on polyamides.

In combination with attenuated total reflectance (ATR), Fourier transform infrared (FT-IR) spectroscopy can be used to classify different moss species.

Webinar Date/Time: On-Demand

We study the spectrum of polymethyl methacrylate (PMMA)—otherwise known as plexiglass—and the spectra of PMMA mixtures and copolymers.