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1751-1775 of 2269 Resource Library
1751-1775 of 2269 Resource Library
APPLICATION NOTE
Introduction When blending base oils and additives for use as lubricants, it is important to know and control the concentrations of certain elements for optimal performance and longer engine life. Because this process is so crucial, ASTM developed a …
APPLICATION NOTE
Introduction Aniline and aniline derivatives are widely used as raw materials and intermediates in the polymer, rubber, dye, pesticide and pharmaceutical industries. Unintended releases of aniliane or its derivatives into the environment pose a serious …
APPLICATION NOTE
Introduction Volatile organic compounds (VOCs) are a series of compounds with high vapor pressure and boiling points from 50 to 250 degrees centigrade. These characteristics lead to the tendency for large numbers of molecules to evaporate, or …
APPLICATION NOTE
Introduction Pharmaceutical and Personal Care Products (PPCPs) are an emerging environmental concern, and include human and veterinary prescription and over-the-counter medications, sunscreens, lotions, soaps, and insect repellants. These commonly …
APPLICATION NOTE
Introduction The production of fertilizer is a key industry for a country's agricultural sector, with the main benefit of increasing crop productivity. The primary elements of interest in fertilizers are categorized into four classes: primary nutrients, …
APPLICATION NOTE
Introduction Nitrite, occurs naturally in the environment as an intermediate of the nitrogen cycle through microbial decomposition of organic matter. However, nitrite contains nitrogen in a reasonably unstable oxidation state and readily oxidizes to …
APPLICATION NOTE
Introduction Normally, thermoplastic materials are utilized as the raw material of 3D printers, while more advanced and sophisticated prototype uses the precursor of thermoset materials (or a prepreg) as the feedstock sources. Due to the reaction nature …
APPLICATION NOTE
Introduction Microplastics are a major concern due to their impact on the environment. There is growing research into microplastics, typically submillimeter in size, and which often end up in waterways and oceans. They remain in a suspended state and …
APPLICATION NOTE
Introduction Contaminants in chemicals used during manufacturing processes have a direct impact on product yield and reliability of semiconductor devices. Within the whole process of integrated circuit manufacturing, wafers are sent for repeated …
APPLICATION NOTE
Introduction Development of recombinantly expressed therapeutic proteins as biopharmaceuticals hold the great advantage of biocompatibility and biodegradability. The success of such protein-based drug formulation relies on a deep understanding of the …
APPLICATION NOTE
Introduction All pharmaceutical packaging systems need to comply with performance requirements to guarantee the integrity and safety of the contained drug throughout its lifecycle, from manufacturing to distribution and ultimately to the end-user. …
APPLICATION NOTE
Introduction UV/Vis spectroscopy represents a powerful technique to study any analyte that is able to absorb light in the UV and Visible region of the electromagnetic spectrum. When proteins contain aromatic side chain amino acids and disulfide bonds,1 …
APPLICATION NOTE
Introduction Quantification of RNA can be easily carried out exploiting the Beer-Lambert’s Law which defines the direct proportion between the concentration of a sample and the quantity of light absorbed. Based on the presence of purine and pyridine …
APPLICATION NOTE
Introduction Emulsions are widely used across a variety of industries including agrochemicals, cosmetics and, importantly, pharmaceuticals. In recent years, emulsion-based adjuvants have been developed which have allowed for an improvement in …
APPLICATION NOTE
Introduction Cyanotoxins often exist intracellularly in cyanobacteria and are released into the water when cells die. Blooms caused by cyanobacteria can be harmful to the human health, animals, and the environment. Microcystin-LR (MC-LR) is one of the …
APPLICATION NOTE
Introduction This application note highlights the LC/MS/MS analysis of PFAS compounds according to the European Union Water Framework Directive 2020/2184. It demonstrates how the PerkinElmer QSight® 420 LC/MS/MS System using a large volume direct …
APPLICATION NOTE
Introduction To meet the growing demand for personal protective equipment following the beginning of the COVID-19 pandemic, face mask production from existing and new manufacturers increased drastically. Testing masks to confirm they do not contain …
APPLICATION NOTE
Introduction The polymer backsheet of a Photovoltaic (PV) module plays a vital role in maintaining the overall integrity of the system. Polyethylene Terephthalate (PET) is a common choice of PV backsheet material for both internal and external layers of …
APPLICATION NOTE
Introduction The requirements for melt analysis of alloys include accurate temperature and melt energy measurement and the ability to exclude oxygen – or if necessary, nitrogen – during the analysis. With the ability to provide microgram-level weight …
APPLICATION NOTE
Introduction Sodium-ion batteries (SiBs) are gaining interest as a cost-effective and sustainable alternative to lithium-ion batteries (LiBs) for large-scale energy storage. While LiBs have higher storage capacity, their widespread use is limited by the …
WEBINAR
Introduction Growing environmental and health concerns about Per- and Polyfluoroalkyl Substances (PFAS) have led to stricter and more extensive regulations of these substances in drinking water, ground water, soil and food over the past decade. PFASs are …
TECHNICAL BRIEF
Introduction For laboratories concerned with following regulated or validated methods, having reliable instrumentation that is easy to maintain is paramount. Often, these labs can be dealing with a spectrum of various sample matrices and require minimal …