UV-vis Spectroscopy

Spectroscopy published stories on Raman, infrared spectroscopy, UV-vis, and more. Here are the top reads from the week.

A recent study examined the ultraviolet-visible (UV-vis) and infrared (IR) spectra of theabrownins in dark tea.

Scientists from Indonesia recently used ultraviolet–visible (UV–Vis) spectrophotometry to test a new methotrexate (MTX) delivery system.

Scientists in Poland recently tested how multidimensional discriminant analysis and reflectance spectroscopy can help identify species within fungi strains.

To study the effect of various extractants on the structure of peat humic acid, peat humic acid was extracted using NH3·H2O, Na2CO3, NaHCO3, and Na2SO3 via alkali-extraction and acid-precipitation methods.

LCGC and Spectroscopy Editor Patrick Lavery spoke with Oligo Factory CEO Chris Boggess about the company’s recently attained compliance with Good Manufacturing Practice (GMP) International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) Expert Working Group (Q7) guidance and its distinction from Research Use Only (RUO) and International Organization for Standardization (ISO) 13485 designations.

Using visible and near-infrared (Vis/NIR) hyperspectral imaging (HSI), scientists were able to determine macro- and micronutrient contents rapidly and non-destructively in persimmon leaves.

Triethylaminium picrate (TEAP) crystals were developed using a slow evaporation solution growth method and then characterized for their feasibility in optoelectronic and other uses.

Spectroscopy plays a critical role in both macroscopic and microscopic plastics detection, which is the first step in remediation, and also in the commercial replacement of plastics with biodegradable materials. This piece provides tangible examples of efforts being made today, including details on spectral hardware implementation, but more importantly provides proposals to the reader on how they can make a meaningful difference in their own world.

In a recent study, a group of scientists analyzed the interaction between perfluorobutanesulfonyl fluoride and bovine serum albumin.

A group of Brazilian scientists tested a new means of testing for COVID-19 using a combination of Vis-NIR spectroscopy and machine learning algorithms.

Researchers from Beihang University in Beijing, China, introduce a dynamic multivariate outlier detection algorithm, DM-SRD, in the journal Applied Spectroscopy, significantly improving the accuracy of real-time monitoring for surface water contamination by addressing challenges posed by hydrological fluctuations.

At the 2023 Gulf Coast Conference, Spectroscopy spoke with Kevin Schug of the University of Texas at Arlington, about predicting gas phase vacuum ultraviolet spectra using machine learning. This interview was one of four conducted live at GCC 2023.

Researchers used a multi-faceted approach that combined UV-visible, fluorescence, and circular dichronism spectroscopy to study the interaction between a newly synthesized 2-phenylquinoline-polyamine conjugate (QPC) and bovine serum albumin (BSA).

This year’s recipient of the Coblentz Award, Wei Xiong of the University of California, San Diego, is being honored for his work. Spectroscopy spoke to Xiong about his work and his feelings about receiving this award.

In this interview, James Chapman discusses his current and future research efforts, and how combining spectroscopy with machine learning tools can change how bacterial research is conducted.

Researchers delve into the interaction between calf thymus DNA and an anticancer platinum (Pt) complex, uncovering its binding mechanism through spectroscopy and molecular dynamic simulations, offering valuable knowledge for future therapeutic advancements.

Scientists have developed an innovative method combining response surface methodology (RSM) and artificial intelligence network (AIN) to accurately estimate malondialdehyde (MDA) levels, a crucial biomarker for lipid peroxidation and oxidative stress measurement.

UV-Vis-NIR can be used to understand how ancient buildings were constructed. Here, a UV-Vis-NIR and EDXRF spectrophotometer were used to analyze glazed tiles that comprised a historical site built in Ancient China.

Our annual review of new products for atomic and molecular spectroscopy, including details by category and highlights of overarching trends.

Scientists have conducted a theoretical study on the rubrofusarin molecule, analyzing its structure, vibrational and UV-vis absorbance spectra, and discussing the impact of solvents on its properties, with implications for understanding the characteristics of Fusarium Head Blight (FHB), a fungal disease that affects cereal crops.

In situ UV-vis spectroscopy is an inexpensive and fast method that was proven to distinguish different types of batteries and energy storage mechanisms.

Spectroscopy offers a range of available techniques that can be differentiated by the use or omission of reference spectra.

In this second part of this four-part series on spectroscopy instrument components, we take a closer look at optical components or subassemblies used for vibrational spectroscopy instruments.

We propose a theoretical basis using vis-NIR spectroscopy for the development of an online nondestructive testing system for the quality of Nanguo pear fruit.