1826-1850 of 2047 Resource Library
1826-1850 of 2047 Resource Library
APPLICATION NOTE
Introduction The use of cannabis concentrates and CBD products (edibles, topicals, vape products, etc.) has increased in popularity as new regulation has been passed legalizing medicinal and recreational use in a number of states and provinces. Testing …
APPLICATION NOTE
Introduction Due to rising concerns over the carcinogenic properties of hexavalent chromium (Cr6+) in drinking water, many national and regional water standards are looking to lower the maximum allowable levels of total chromium and hexavalent chromium …
APPLICATION NOTE
Introduction Toxic cyanobacterial blooms were reported worldwide in various aquatic systems, including freshwater rivers, lakes, reservoirs, and eutrophied coastal marine habitats. Cyanobacterial blooms might be caused by a combination of multiple …
APPLICATION NOTE
Introduction This application note presents a high throughput method evaluating 27 analytes in drinking water following U.S. EPA 200.8 with a 3-5 fold reduction in sample analysis time through the use of the HTS high throughput sample introduction …
APPLICATION NOTE
Introduction Single Particle (SP) ICP-MS is an analytical technique that has demonstrated tremendous potential for the measurement and characterization of metal-containing nanoparticles (NPs) in a wide range of sample types, including environmental. One …
APPLICATION NOTE
Introduction Knowing the concentration of hexavalent chromium in environmental systems and samples which will be consumed is more important than knowing the total chromium concentration. This is especially true for drinking water. This work describes …
APPLICATION NOTE
Introduction Estrogen plays an important role in the human body, but excess concentrations of endogenous estrogens, a known endocrine disrupting compound (EDC), in urine have been linked to the development and growth of breast cancer and tumors in …
APPLICATION NOTE
Introduction EU water policies are reevaluated on a consistent basis to ensure water sources do not contain contaminants at levels above regulatory levels. As regulations are reviewed, regulatory limits are often lowered, and analytical techniques must …
APPLICATION NOTE
Introduction The heavy metal contamination of soil is one of the most widespread and severe environmental problems. This pollution not only decreases crop production, but also affects the health of people consuming the resulting food. With the increased …
APPLICATION NOTE
Introduction Several directives throughout the EU provide guidance on environmental quality standards for water, and define more than 30 priority substances as significant risk to humans. Many of the monitoring limits within these directives are set at …
APPLICATION NOTE
Introduction Endocrine disrupting chemicals (EDCs) have been found to have harmful effects on the health of both humans and wildlife. Of these EDCs, endogenous estrogens, such as estriol, 17ß-estriadiol, and estrone are of particular interest due to …
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 …