analytical-chemistry

[Analytical Chemistry] The chemical characterization of scarce or heterogeneous solid samples remains a significant analytical challenge due to the high material quantities required by conventional techniques. Here, a microsampling approach […] The post Analytical Platform (Microsampling, Catapulting, Trapping, and LIBS) for the Characterization of Discrete Domains in Samples of Astrochemical Int…

I have the following chemical equation in Chemfigs: \documentclass[border=1mm]{standalone} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage[french]{babel} \usepackage{chemfig} \...

Abstract The presence of pharmaceuticals in the environment has become a significant analytical and ecological concern because of their continuous release, persistence, and potential adverse effects. Their occurrence at trace levels, combined with the complexity of environmental matrixes, necessitates efficient extraction and preconcentration prior to instrumental determination. This review criti…

Chemistry found the marker compound treated as diagnostic of ambergris in nine of the eleven samples, a different nine from the nine museum specimens, while sperm whale DNA turned up in seven, and the authors recommend both methods while ranking the chemistry first.

A new electrochemical sensor detects trace aluminium in soil and food, offering rapid, sensitive measurements for environmental monitoring and routine analysis across diverse sample types. Researchers have developed an electrochemical aluminium sensor that can detect trace levels of the metal in soil and food samples, offering a simpler approach to environmental and food monitoring. The […]

Metrohm introduces OMNIS IC, the next-generation ion chromatography system designed to combine maximum flexibility, automation, and reliability on a single analytical platform.

IntroductionBiomonitoring of commercial endocrine-disrupting chemicals (EDCs) increasingly underpins exposure assessment and risk evaluation, yet most large-scale studies still rely on indirect, enzymatic hydrolysis–based methods whose quantitative performance has not been systematically verified. Here, we describe the development and rigorous validation of a direct liquid chromatography-tandem m…

A new spectrometry technique could help companies better understand what happens when antigens and antibodies bind. Its developers hope it could help with applications including choosing formulation buffers during manufacturing. The post New Spectrometry Technique Could Aid Formulation Development appeared first on GEN - Genetic Engineering and Biotechnology News .

Organophosphorus pesticides (OPs) are persistent environmental contaminants requiring monitoring in aquatic ecosystems. In this study, four novel mineral–carbon composites (K-HNT, K-C-HNT, D-HNT, and D-C-HNT) were synthesized via thermal treatment at 800 °C from halloysite nanotubes, casein, dextrin, and pyrolyzed sawdust. Moreover, these materials were characterized (BET, FT-IR, Raman, SEM/EDS),…

Some time ago I posted this Raspberry PI DIY Mass Spec using Raman Scattering . It's was something of a cumbersome project though, needing a 3D printer and special heat-resistant plastic giving of carcinogenic fumes during printing. To be blunt it was also not very mobile and interpreting... Read more

Scientific Reports, Published online: 01 September 2026; doi:10.1038/s41598-025-30463-x Preparation and characterization of a Syrian pumice-based ion exchanger for copper (II) ion adsorption

[x-mol.net] This work demonstrates a surface-enhanced raman spectroscopy (SERS) approach based on laser deposition of Au plasmonic nanoparticles onto several relevant mineral surfaces. A pulsed 1064 nm wavelength laser is […] The post Surface Enhanced Raman Spectroscopy of Planetary Materials Using Laser Deposited Plasmonic Gold Nanoparticles appeared first on Astrobiology .

Rapid and sensitive determination of nitrate (NO3−) is crucial as NO3− contamination in aquatic environments poses increasing risks to ecosystem stability and drinking water safety. Herein, an electrochemical NO3− sensor was reported based on cuprous oxide (Cu2O) nanoparticles integrated with carboxylated multiwalled carbon nanotubes (cMWCNTs) on indium tin oxide (ITO) electrode. The sensing inte…

IntroductionGlucose in tobacco leaves acts as a vital chemical precursor that thermally degrades and reacts with amino acids during combustion and curing to enrich aldehydes, ketones, and nitrogen‐containing heterocyclic aroma compounds, thereby shaping flavor and masking harshness. However, current analytical methods for glucose quantification are limitations of high complexity, poor portability…