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1551-1575 of 2239 Resource Library
1551-1575 of 2239 Resource Library
APPLICATION NOTE
Introduction The London Metal Exchange issues specifications for a number of different metals in several grades. This work focuses on the analysis of lead of different purities with PerkinElmer’s Avio® 550 Max ICP Optical Emission Spectrometer …
APPLICATION NOTE
Introduction The most common form of brines is sodium chloride (NaCl)-based. These are used primarily in the production of chlorine gas (Cl2) via electrolysis and the polymeric membrane cell process, in which brines are passed through an ion-exchange …
APPLICATION NOTE
Introduction Volatile Organic Compounds (VOCs) have been identified as a major source of air pollution, and as such, have been regulated as a cause of both primary and secondary pollution, such as photochemistry smog. The U.S. Environmental Protection …
APPLICATION NOTE
Introduction ATR chemical imaging has advanced the state of the art in chemical imaging of certain types of pharmaceutical tablets. It provides a very large improvement in achievable spatial resolution compared with NIR chemical imaging, and sharper, …
APPLICATION NOTE
Introduction The use of IR imaging expands the measurement possibilities by giving information about the individual types of materials present in the collected particles. The information from the IR imaging experiment is not only qualitative (i.e. …
APPLICATION NOTE
Introduction The analysis of soils for elemental contents presents challenges during the sample preparation step. A common method for preparing a soil sample for inorganic elemental analysis involves digesting the soil sample in an acid that is heated …
APPLICATION NOTE
Introduction The prevention and control of water pollution is of critical importance to protecting both human and environmental health, and as a result, water must be monitored for pollutants at various stages, starting from the discharge of wastes and …
APPLICATION NOTE
Introduction This study shows that DSC can be used to study the curing degree of the EVA resin by measuring the residual curing enthalpy. The data show that the residual curing enthalpy can be correlated to the curing time in a linear way. The DSC test …
APPLICATION NOTE
Introduction Food adulteration normally makes the news with cases like melamine in milk1. However, high-value products are often subjected to adulteration by lower-value materials and this can be difficult to detect. As a high-priced produce, a pint of …
APPLICATION BRIEF
Introduction Polycyclic aromatic hydrocarbons (PAHs) are a class of lipophilic and ubiquitous environmental pollutants, consisting of multiple fused rings. They can enter the environment through natural sources (e.g. forest fires and volcanoes) and …
APPLICATION NOTE
Introduction One of the major challenges in the mining industry occurs early on the in the exploration phase, when determining where to dig. To establish if an area as viable, drilling and sample collection ensues at high volumes, necessitating rapid, …
APPLICATION NOTE
Introduction Fortified breakfast cereals are an important source of nutrition for children, and consumers have come to expect high quality from a variety of cereals and continue to select fortified products over non-fortified products in the …
APPLICATION NOTE
Introduction Consumers select fruit juice because it is a tasty, convenient beverage and generally understood to be a more nutritious alternative to carbonated beverages. For 100% juice products, the nutrition content of the original fruit itself is …
APPLICATION NOTE
Introduction With an increased focus on healthy living and the consumption of healthy foods, interest in the nutritional quality of the fruit we consume has become more important. When fresh fruit is not available, dried fruit is often substituted, and …
APPLICATION NOTE
Introduction To meet the demands of complex petrochemical testing, our new Clarus® 590 and 690 gas chromatography (GC) instruments are preconfigured to provide a turnkey solution for a wide range of applications, including Simulated Distillation. We …
APPLICATION NOTE
Introduction Milk is an important source of nutrients, mainly for children. Because of its importance, milk is available in several different forms, most commonly as fresh, but it is also available in nonperishable forms (such as powdered and …
APPLICATION NOTE
Introduction Drugs of abuse, which can trigger the user’s central nervous system and induce an altered state of mind, can be divided into different types, including stimulants such as cocaine, psychoactive substances such as LSD (lysergic acid …
APPLICATION NOTE
Introduction Ginseng has been used as an herbal medicine in Asia for over two thousand years for its purported various health benefits, including antioxidant, anticarcinogenic, antiinflammatory, antihypertensive and anti-diabetic. The pharmacologically …
APPLICATION NOTE
Introduction This application note presents a fast and robust liquid chromatography method to simultaneously test nine widely used additives. Among the additives tested are: preservatives (benzoic acid, sorbic acid, dehydroacetic acid and …
APPLICATION NOTE
Introduction Validated worldwide industry standard and accepted method for detecting sprout damage in flour and meal of wheat, durum, rye, barley and other grains and malted cereals. Approved methods include: AACCI/No 56-81.03, ICC/No. 107/1, ISO/DIS …
APPLICATION NOTE
Introduction Mid-infrared (MIR) microscopy is a broadly employed chemical identification tool that is used to complement traditional light microscopy. In recent years we have seen an explosive growth in the applications of the FT-IR Imaging Microscope …
APPLICATION NOTE
Introduction Bottled water is marketed as being the clean and pure alternative to drinking tap water. However, there is increasing opposition to the use of single-use plastic bottles and the fact that they end up in the environment either as intact …
APPLICATION NOTE
Introduction Cavity-enhanced absorption spectroscopy (CEAS) has similarities with the better known cavity ringdown technique (CRDS) which measures the signal decay as a laser pulse emerges through one of the mirrors after successive reflections. By …
APPLICATION NOTE
Introduction Glycerol (or glycerin) is a colorless, odorless liquid that is generally safe for human exposure and consumption. It has many uses in the food, pharmaceutical and personal care industries due to its range of versatile properties allowing it …
APPLICATION NOTE
Introduction Olive oil is an increasingly popular food product worldwide, with global production exceeding 3.0 million tons in 2011 and showing steady annual growth. Despite these huge volumes, however, margins are relatively small in olive oil …