1826-1850 of 2030 Resource Library
1826-1850 of 2030 Resource Library
APPLICATION NOTE
Introduction Per- and polyfluoroalkyl substances (PFASs), or Per- and polyfluorinated compounds (PFCs), represent a group of anthropogenic chemicals that have been produced and widely used in industrial applications and consumer products since the …
APPLICATION NOTE
Introduction Air pollution is a global concern. Ground-level ozone has become an increasingly important issue in developed nations, as the health effects of smog are more clearly understood. The monitoring of VOC ozone precursor compounds will continue …
APPLICATION NOTE
Introduction Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partially halogenated paraffin hydrocarbons. CFCs, in the form of polyether polyol mixtures, have been widely used as blowing agents in the manufacture of rigid …
APPLICATION NOTE
Introduction The analysis of geological materials poses a challenge due to their matrix composition and the sample preparation process required to convert the samples into solution. A commonly used sample preparation technique for geological samples is …
APPLICATION NOTE
Introduction Ethanol is an important blending component in fuels commonly used in gasoline/petrol. Because of its wide use, it is important to monitor the concentrations of impurities in the ethanol which can negatively impact the performance of the …
APPLICATION NOTE
Introduction Due to aluminum’s varied uses and popularity, there are many grades available. The London Metal Exchange (LME) lists specifications for two commonly-used aluminum (Al) purities: 99.5% and 99.7%1, with each having up to six inorganic …
APPLICATION NOTE
Analysis of Aluminum Alloys with the Avio 220 Max ICP-OES Following London Metal Exchange Guidelines
Introduction Due to its unique characteristics, aluminum (Al) is used in a wide variety of commercial and industrial applications. Its utility can be further enhanced by combining it with other metals to create aluminum-based alloys, where the …
APPLICATION NOTE
Introduction Gold (Au) is one of the most precious and useful metals, due to a unique combination of characteristics: resistance to tarnish/corrosion, ability to conduct electricity, and ability to be easily formed into a variety of shapes. And because …
APPLICATION NOTE
Introduction Although considered pharmacologically inert, pharmaceutical excipients have been shown to interact with active drug substances to affect the safety and efficacy of drug products. One of the areas of major concern is the potential chemical …
APPLICATION NOTE
Introduction Thymopentin (TP5), a 5-amino-acid polypeptide, is a safe and effective immunostimulant utilized in the treatment of a variety of immune disorders. Several residual solvents are used in the manufacture of TP5, including the "universal …
APPLICATION NOTE
Introduction A typical FT-IR spectrometer will scan down to the long wavelength limit of approximately 400 cm-1 limited by the optical components such as the beamsplitter and detector which contain potassium bromide (KBr). However, there are a growing …
APPLICATION NOTE
Introduction Infrared Spectroscopy has become a ubiquitous tool in the analysis of pharmaceutical raw materials, with both Mid- and Near-infrared spectroscopy functioning as commonplace techniques for the investigation of both excipients and active …
APPLICATION NOTE
Introduction Testing for harmful metal(loid)s that may be included in raw materials, processes, paints and additives used in the manufacturing processes of children's toys has been mandated by the regulation EN 71-3. This regulation recommends specific …
APPLICATION NOTE
Introduction With the increased use of nanoparticles (NPs) in various products and processes, the need to characterize them has also increased. Single Particle ICP-MS (SP-ICP-MS) was developed for rapid analysis of nanoparticles, measuring thousands of …
APPLICATION NOTE
Introduction Per- and polyfluoroalkyl substances (PFAS) are a diverse group of synthetic organic compounds which have been utilized as aqueous film forming foams (AFFF) for firefighting purposes, and as stain and water resistant coatings on a number of …
APPLICATION NOTE
Introduction Biodiesel is seldom used neat (B100), typically being blended with fossil diesel at ratios from 5% v/v (B5) to 30% v/v (B30). Verifying the FAME content of diesel-fuel blends is an important aspect of quality control and auditing of …
APPLICATION NOTE
Introduction Biodiesel fuels are often blended compositions of diesel fuel and esterified soybean oils, rapeseed oils, or other potential vegetable oils as well as fats. The physical and combustion properties of these biofuels have allowed them to …
APPLICATION NOTE
Introduction Isoflavones are water-soluble compounds found in many plant and food sources. Designated as phytoestrogens, isoflavones are structurally similar to to the female hormone estrogen, and have been shown to exhibit a number of beneficial …
APPLICATION NOTE
Introduction Aflatoxins are a group of naturally occurring mycotoxins produced by molds such as Aspergillus flavus and Apsergillus parasiticus, which have detrimental effects on humans, animals, and crops resulting in illness and economic losses. …
APPLICATION NOTE
Introduction The most significant challenge in trace element analysis of drinking water is ensuring detection capability that complies with the regulatory framework at the same time as maximizing sample throughput. The NexION® 1100 ICP-MS solves the …
APPLICATION NOTE
Introduction Gold nanoparticles (AuNPs) are widely used in industrial and medical applications. They are known to form naturally during the weathering of Au-bearing mineral deposits, as well as the transformation of gold nuggets and particles. In …
APPLICATION NOTE
Introduction Accurate monitoring of moisture, protein, ash and starch content of dry peas is important for quality control and cost monitoring. Since dry peas are a bulk commodity, there is a need to analyze many samples quickly. Reference methods of …
APPLICATION NOTE
Introduction Haloacetic acids (HAAs) are a class of undesired by-products resulting from the reaction of chlorinated disinfectants with natural organic matter in water, Which is known to be carcinogenic. The Japan Ministry of Health revised the …
APPLICATION NOTE
Introduction Similar to Sweetened condensed milk (SCM), monitoring butterfat and total solids in ice cream bases can enable consistent quality and safeguard producer profitability. Historically, NIR instrumentation had limited success in the …
APPLICATION NOTE
Introduction Since 2003 the usage of azo and non-azo dyes for food coloring has been declared as illegal by many of the food international authorities across the globe. That is because these substances such as Sudan I,II,III,IV and Rhodamine B, are …