analytical-chemistry

Scientific Reports, Published online: 22 August 2026; doi:10.1038/s41598-026-65358-y A density functional theory study of an S N 2 reaction mechanism for hydrolysis of Al-O-Si linkages: implications for dissolution of aluminosilicates under acidic and basic conditions

People who want to avoid certain chemicals often spend extra time reading labels on cosmetics, baby products and household cleaners. New research suggests that even careful shoppers may not always be able to tell what chemicals are actually present in the products they buy. Scientists tested 113 everyday products and found unlisted chemicals in 98% […] The post Your Shampoo Label May Not Tell the…

Nature Communications, Published online: 20 August 2026; doi:10.1038/s41467-026-76850-4 Accurate gas sensing remains challenging because conventional semiconductor sensors often struggle with selectivity and interference from complex gas mixtures. Here, the authors use a single-atom catalyst strategy to stabilize isolated Pt atoms on regionalized SnO₂ surfaces, enabling selective and antiinterfer…

We reach for brighter, better lighting for sharper pictures, whether we’re photographing a puppy or a microscopic cell. In most cases, the light comes from outside the object being photographed. A recent study explored a different approach, using the cells’ own chemical glow to illuminate their internal structures. This new experimental framework, called REID, lets […]

dc.title: Exploring environment-sensitive fluorescent turn-on probes for Zn²⁺-containing metalloenzymes dc.description.abstract: Zinc is an essential micronutrient that is widely integrated into many cellular processes, serving structural, catalytic, and regulatory roles. In cells, it exists largely in two tightly regulated pools: labile and sequestered zinc. To date, most methods for studying ce…

Salt and MSG are two well-known food additives. Both contain sodium, but there are plenty of differences you can use to your benefit.

I vividly remember attending the 14th International Meeting on Organic Geochemistry in 1989 in Paris. I witnessed a presentation by John Hayes during which he introduced both a conceptual framework for interpretation of stable carbon isotopic compositions (?13C values) of biologically-derived compounds (biomarkers), as well as a novel analytical approach to measure ?13C values of individual compo…

IntroductionThe flower of Camellia petelotii (Merr.) Sealy is highly valued in Traditional Chinese Medicine, making it susceptible to adulteration with its leaves or other lower-cost adulterants. This study aims to develop a robust authentication approach to distinguish different plant parts and identify adulterated mixtures using ATR-FTIR spectroscopy integrated with chemometrics and artificial …

What is Chromatography? Chromatography Definition Chromatography is a technique used to separate and analyze the components of a mixture based on their properties and interactions with a stationary and mobile phase. What is a stationary phase? What is the mobile phase? Types of Chromatography Here is the Types of Chromatography; Type of Chromatography Description Gas ... Read more

Ingredient labels may not tell consumers everything that is inside their shampoo, sunscreen or baby lotion. A new laboratory study found that almost every personal care and cleaning product tested contained at least one chemical that was not listed on its label. Even more concerning, many products contained an unlisted chemical that researchers described as […] The post What Is Really Hiding in E…

Disulfide-rich peptide therapeutics often exhibit compact cystine knot-like architectures that endow them with high conformational rigidity, proteolytic stability, and target specificity. Yet their intrinsic polymorphism and structural heterogeneity are difficult to resolve with conventional analytical methods, which lack sufficient power to distinguish subtle structural variants within highly co…

Nature Communications, Published online: 17 August 2026; doi:10.1038/s41467-026-76934-1 High-resolution fluorescence microscopy reveals cellular structures but provides limited chemical information. Here, authors develop Chem-SIM to map molecular composition and dynamics in bacteria and living cells with improved resolution and reduced water background.

How can molecular recognition improve vanillin detection? Our study develops a Co₃O₄/TiO₂ molecularly imprinted electrochemical sensor, combining enhanced charge transfer with selective recognition and DFT-guided mechanistic insights.

Standardized sample preparation is essential to ensure a time-saving, easy-to-use workflow. In AOX, AOF, and EOF analysis in particular, there are many obstacles that can distort the analysis results. This is where APU sim from Analytik Jena comes into play. APU sim offers fast and simultaneous enri...

Ultraviolet (UV) filters are essential ingredients in sunscreens and personal care products, and understanding their physicochemical properties is important for evaluating their performance and applicability. In this study, selected degree-based topological indices and their corresponding graph-energy descriptors were investigated as molecular descriptors for a set of commercially relevant UV-fil…