Alfa Chemistry Blog

The market demand for certified reference materials and standards has increased in the past decade. In order to make such chemicals easily obtainable for researchers, Alfa Chemistry recently announced to offer a wide range of pharmaceuticals, illicit drugs & alcohol standards that can be used in the analytical testing of many pharmaceuticals and illicit drugs.   “While conducting research on pharmaceuticals, diagnostic biomarkers, and illicit drugs that are of abuse, researchers may need a series of reference materials such as their standards, metabolites, impurities, and degradants in a wide variety of chromatographic and mass spectrometry-based testing scenarios,” says a spokesperson from Alfa Chemistry. The diverse pharmaceuticals, illicit drugs & alcohol standards can be widely applied for a string of purposes, to name just a few here: clinical toxicology testing, forensic analysis, pharmaceutical testing and research, clinical diagnostic testing, cannabis profilin...

After the launch of a series of household and apparel testing services, Alfa Chemistry Testing Lab recently releases footwear testing, providing comprehensive shoe product inspection solutions according to customer’s needs and in compliance with international and local regulations. With a professional analysis team and advanced instruments, the most accurate testing results can be obtained within the shortest timeframe possible. A wide range of footwear can be tested at Alfa Chemistry Testing Lab, including boots, shoes, sandals, indoor footwear, socks, sports footwear as well as footwear materials and components. “Despite there are many types of footwear, all need to be practical, comfortable and durable. This makes it necessary to conduct relevant research and testing on footwear so as to ensure its quality and safety,” says the Marketing Chief of Alfa Chemistry Testing Lab. In general, a complete footwear testing project should cover the following aspects: Chemical testing...

As a newly arising supplier of graphene-related products and solutions, Alfa Chemistry recently announces to start to provide mechanically exfoliated single crystal graphenes for customers worldwide. Mechanical exfoliation is a method universally used by manufacturers to achieve large-scale production of graphene . “ In the past two decades, mechanical exfoliation has been a unique enabler of the exploration of emergent 2D materials. Graphene is one type of these materials,” says a senior scientist from Alfa Chemistry. “ With mechanical exfoliation, high-quality two-dimensional graphene materials can be easily obtained and many of them can be typically used to create optoelectronic and electronic devices .   The mechanically exfoliated single crystal graphenes available at Alfa Chemistry include: Mechanically Exfoliated Single Crystal Graphene on SiO 2 /Si (SiO 2 : 300 nm thick) With SiO 2 /Si as the substrate and a graphene area exceeding 5000 µm 2 , Alfa Chemistry off...

Metal organic frameworks (MOFs) are a type of crystalline porous material with a periodic network structure formed by connecting and bridging inorganic metal centers (metal ions or metal clusters) with organic ligands. Because MOFs have many properties such as porosity, large specific surface area, strong designability, multi-metal sites, etc. , they have been extensively studied and used in the fields of gas storage, molecular separation, catalysis, and sustained drug release during the past 20 years. Today, electrocatalytic technology plays an important role in the conversion of clean energy and contributes to the development of sustainable technologies in the future. Among them, single atom catalysts (SACs) based on MOF chemicals are emerging unconventional materials in electrochemical catalysis applications. It has unique electronic structure, quantum size effect and other advantages, and is expected to improve electrocatalytic activity, stability and selectivity in the field of...

After the release of amphoteric surfactants, this month Alfa Chemistry announced to enrich its supply of surfactants by adding anionic surfactants , which are surface actives that ionize negative charges in water. In the production of surfactants, anionic surfactants are most frequently used, making up almost 41% of all consumed surfactants. “Commonly found in laundry detergents, handwashes, kitchen cleaners, body washes, anionic surfactants are very effective at removing oily residue,” says one of the senior scientists from Alfa Chemistry. “According to compositions and structures, anionic surfactants can fall into three categories, that is, soap surfactants, sulfate surfactant as well as sulfonate surfactants.” In addition to applications in household cleaning detergents and personal-care products, anionic surfactants also found many other uses in textiles, paints, polymers, pesticides, pharmaceuticals, mining, oil recovery, and the pulp and paper industries, agriculture, cosmet...

The charm of quantum dot nanotechnology has been noticed by many electronic and biomedical industries. Earlier this year, Alfa Chemistry announces that now CdS/ZnS quantum dots are readily available for customers worldwide. Among the many types of II-VI group semiconductor quantum dots including CdS, ZnS, CdSe, ZnSe and so on, CdS/ZnS quantum dots have been most intensively studied for its light-emitting potential application in recent years. “This is because they can absorb excitation light to produce fluorescence, and the wavelength of fluorescence emission can be adjusted by changing the size of the quantum dots. Moreover, in order to enhance the luminescence stability of CdS quantum dots, wideband gap semiconductor particle ZnS is used as the shell to coat narrowband gap semiconductor particle CdS. Through such a way, a core-shell CdS/ZnS quantum dots is fabricated and enjoys not only enhanced fluorescence quantum yield but also decreased cytotoxicity, making it possible to be...