1901-1925 of 2061 Resource Library
1901-1925 of 2061 Resource Library
APPLICATION NOTE
Introduction In the “Early Drug Discovery Phase” of pharmaceutical development when there is a minimum amount of synthesized drug candidate, quick thermal analysis using a small amount of sample is the norm. The sample amount could be less than 3 mg. …
APPLICATION NOTE
Introduction Increasing the sensitivity and throughput of Differential Scanning Calorimetry (DSC) analysis has always been a challenge for thermal analysts in research and development. DSC analysis becomes difficult for small sample sizes, high …
APPLICATION NOTE
Introduction Compliance with California’s Proposition 65 for the monitoring of lead (Pb) in calcium-based antacid medications and dietary supplements requires the analytical methodology to demonstrate detection limits below 0.05 µg/g in the solid …
APPLICATION NOTE
Introduction Counterfeiting of pharmaceuticals and the proliferation of substandard drugs constitute a serious health risk for the world population, including both industrialized and developing countries. It is estimated that five to eight percent of …
APPLICATION NOTE
Introduction Urine is the matrix of choice as it can be collected easily and in large volumes. The variations within the urine matrix can adversely impact chromatographic separation and LC-MS/MS signal. The present study demonstrates that a simple …
APPLICATION NOTE
Introduction Measurement of metanephrines and normetanephrine in plasma is challenging due to the low physiological concentrations, their hydrophilic nature1, and time consuming traditional sample preparation. With use of the PerkinElmer QSight® 220 …
APPLICATION BRIEF
Introduction Inductively coupled plasma mass spectrometry (ICP-MS) is the technique of choice for the analysis of food materials. This is thanks to its ultratrace detection capabilities, ideal for the determination of low-level contaminants, such as Pb, …
APPLICATION BRIEF
Introduction Compositional analysis of liquid animal feed is an important step in verifying proper nutritional value at the mixer and prior to shipment to customers. Nutritional information is vital to farmers when formulating feeding strategies. The DA …
APPLICATION NOTE
Introduction Explosive materials are composed of energy-rich substances that release stored energy through a series of violent chemical processes upon ignition. The chemicals responsible for these explosive reactions are typically unstable without the …
APPLICATION NOTE
Introduction Wallpaper is widely used throughout the world as an interior design choice that offers bright colors, rich designs and durability, all at an affordable price. Vinyl wallpaper has emerged as an especially durable choice over paper and …
APPLICATION NOTE
Introduction Volatile organic compounds (VOCs) are a series of compounds with boiling points from 50 to 250 degrees centigrade and are widely used as industrial chemicals/ solvents. Low concentrations of VOCs can have a significant impact on human …
APPLICATION NOTE
Introduction A common QC test in plastic production is the analysis of residual monomers in the final polymer material. This analysis is well suited for headspace sampling because headspace eliminates the sample preparation. The sample is analyzed …
APPLICATION NOTE
Introduction This note describes the test method for the quantitative analysis of aerosol oil and liquid oil typically present in the air discharged from compressors and compressed air systems. The method is rapid, sensitive and cost effective and shows …
APPLICATION NOTE
Introduction Transformers aid in the delivery of electricity, and issues with transformers can result in an interruption of power supply to consumers. To prevent such interruptions, transformers must be properly maintained and monitored. An effective …
APPLICATION NOTE
Introduction doughLAB uses standard or custom test configuration to determine water absorption, and dough mixing profile of wheat, durum, rye, and composite flours for milling. This method indicates when dough will reach its optimum viscous and elastic …
APPLICATION NOTE
Introduction Lactose is a very important pharmaceutical excipient used in tablet and inhalation products. It is prone toforming amorphous regions on processing however, and it can be problematical to characterize amorphic material in a sample. … The …
APPLICATION NOTE
This work highlights the characterization of epoxy materials by Thermo-Gravimetric Analysis (TGA) and shows that the materials could exhibit considerable weight loss after curing. These weight losses can be characterized by hyphenated methods like …
APPLICATION NOTE
Introduction A commonly studied sample by Differential Scanning Calorimetry (DSC) is thermoset epoxy materials where the sample is heated to an elevated temperature, at which point it starts to cross-link. When studying these types of materials, …
APPLICATION NOTE
Introduction Dynamic Mechanical Analysis (DMA) is one of the most appropriate methods to investigate relaxation events. The glass transition (Tg) is a key process in any material but is especially important for paint materials. The mechanical properties …
APPLICATION NOTE
Introduction Understanding the health of the soil in which crops grow is fundamental in ensuring healthy yields. Two elements that are essential to this are Carbon and Nitrogen, especially in their proportion to each other. This relationship is called …
APPLICATION NOTE
Introduction EPA 8015C is a gas chromatographic method used to establish concentrations of a variety of non-halogenated volatile organic compounds, semivolatile organic compounds, and petroleum hydrocarbons. For the purpose of this application, a …
APPLICATION NOTE
Introduction This analysis focuses on the detection of trace level semi-volatile organic compounds in extracts from solid waste matrices, soils, air sampling media and water samples. The method lists over 200 compounds however a majority of laboratories …
APPLICATION NOTE
Introduction There is a growing demand for the analysis of trace levels of volatile and semi-volatile organic compounds in air, water and solid matrix samples under harsh conditions in remote, field-based locations. This study has demonstrated that it …
APPLICATION NOTE
Introduction This method uses the RVA 4800 to rapidly determine rice quality and compare different rice varieties. … Rice Method 10.05 using …
APPLICATION NOTE
Introduction In this application brief, a thirteen-minute pasting profile utilizing grated cheese is presented utilizing a Rapid Visco Analyser (RVA) to assess melt characteristics in processed food. Combining speed, precision, flexibility and …