Spectroscopy Staff

A new study describes a rapid and accurate method for isotopic analysis of uranium, plutonium, and americium in post-detonation debris simulants using resonance ionization mass spectrometry (RIMS), which could be a valuable tool in nuclear forensics.

Researchers have experimentally determined the L-shell fluorescence yields and Coster-Kronig transition probabilities for ruthenium for the first time, which will improve the accuracy of X-ray fluorescence quantification results.

A new study reports on the performance of a handheld Fourier transform near-infrared spectrometer for rapid and quantitative determination of total petroleum hydrocarbon content of soils.

A simple and inexpensive method for the determination of hexavalent chromium in aqueous solutions was developed using liquid-liquid microextraction combined with total reflection X-ray fluorescence spectrometry.

Researchers describe a new method for the ultra-trace determination of mercury in seawater using vortex-assisted liquid-liquid micro-extraction (VALLME) and atomic absorption spectrometry (AAS).

New research discusses the development of laser-induced XUV spectroscopy (LIXS) as an improvement to laser-induced breakdown spectroscopy (LIBS) for rapid in situ microanalysis of materials, with the ability to determine light elements and halogens with high precision and detection limits.

A study shows that microwave-enhanced laser-induced breakdown spectroscopy (MWE-LIBS) can effectively analyze zirconium metals and oxides in nuclear fuel debris. The study found that microwaves lower the excitation temperature and increase ionization of zirconium, resulting in consistent enhancements in zirconium emissions with a higher signal-to-noise (S/N) ratio across all sample types.

A new study characterizes gas cell reactions for over 70 elements using nitrous oxide for ICP-MS/MS measurements, demonstrating the high versatility of nitrous oxide as a reaction cell gas for routine ICP-MS/MS measurements.

A new study shows how a spatial heterodyne spectrometer (SHS) combined with a flame atomic absorption (FAA) setup can be used as a tool for high-resolution atomic absorption studies.

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.

Researchers have proposed a two-step Aug2Tran model that uses transfer learning to build a robust real-time classification model for identifying scrap metal using an augmented training dataset consisting of laser-induced breakdown spectroscopy (LIBS) measurement of standard reference material (SRMs) samples.

Researchers have developed a new method for analyzing Raman spectroscopy data in biological samples using group- and basis-restricted non-negative matrix factorization (GBR-NMF) framework, providing a promising approach for interpreting Raman spectroscopy data in biological samples.

Researchers have developed a rapid and non-destructive method for evaluating the quality of Radix Paeoniae Alba and its processed products using near-infrared (NIR) spectroscopy combined with multivariate algorithms.

A recent study shows how the development of dynamic SBET represents an important advancement in air quality research.

A new study explores the compositional changes of organic matter in torrefied olive mill pomace compost using infrared spectroscopy and chemometrics.

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.

Factor analysis (FA) of the time series of surface-enhanced Raman scattering (SERS) spectra was used to reveal changes in water arrangement and surface plasmon extinction (SPE) in silver nanoparticle systems, which could help to interpret SERS results more accurately.

Terahertz time-domain spectroscopy was used to identify and analyze the low-frequency vibrational modes of three free anthraquinones, revealing the vibrational contributions of different atoms and groups.

SERS of centrifuged blood serum samples of diabetic type II patients using 50 KDa filter devices can diagnose the disease at an early stage by studying small molecular weight proteins.

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.

A new article reviews methods for determining trace elements in germanium and germanium dioxide, highlighting the advantages and limitations of methods with and without matrix separation procedures.

New research compares light capturing approaches in LIBS for multichannel spectrometers, highlighting the challenges of shot-to-shot variations in plasma morphology and their effect on calibration-free LIBS.

Researchers have developed a method for the simultaneous determination of cadmium and lead in water samples using microwave-induced plasma optical emission spectrometry with multiwalled carbon nanotubes pre-concentration and a discrete sample introduction system.

New research presents a fast and sensitive method for the simultaneous determination of zinc and iron in vegetables and plant material using HR-CS GF-AAS.

Scientists have demonstrated LIBS stratigraphy to identify the chemical composition and pigments of small fragments from two oil paintings by Bellini and Brughi, with the results providing important information for conservation and restoration purposes.

Scientists have developed a solution-based surface-enhanced Raman spectroscopy (SERS) protocol using polystyrene sulfonate modified gold nanobipyramids (PSS-Au BPs) for the detection of cationic dye molecules in aquaculture.

Chemometric modeling and near-infrared reflectance spectroscopy were successfully used to monitor the concentrations of eight elements in cultivated and fertilized Haplic Luvisol soils.

A new ICP-MS/MS method recently developed is an important step in detecting low levels of radioactive contamination in the environment.

The DeepRaman method proposed in the study is an accurate, universal, and ready-to-use method for component identification in various application scenarios.

Detecting inorganic chromium in water requires a more efficient approach than the current methods. In a recent study, researchers proposed a methodology for detecting inorganic chromium (Cr) in environmental water samples using direct immersion dual-drop microextraction (DIDDME) followed by graphite furnace atomic absorption spectrometry detection.