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451-475 of 2477 Resource Library
451-475 of 2477 Resource Library
APPLICATION NOTE
Introduction Isotope ratio measurements are used in many application fields, such as nuclear, geological, geochronological dating, clinical, and others. Depending on the industry, there is interest in measuring natural, depleted, or enriched isotope …
APPLICATION NOTE
Introduction With the development of optoelectronic communication technology, the demand for radio and television materials is increasing, especially that of high-purity rare earths. As such, rare earth elements (REEs) are often referred to as …
APPLICATION NOTE
Introduction Nickel-based superalloys are widely used in challenging environments because of their physical properties, which include, but are not limited to, toughness, high heat resistance, high strength-to-weight ratio, and low thermal conductivity. …
APPLICATION NOTE
Introduction To protect the health of allergic consumers from the inadvertent or intentional contamination by allergens, different analytical methods for the sensitive detection of allergens in food were developed over the years. In this work we present …
APPLICATION NOTE
Introduction a-chymotrypsinogen is a precursor, or zymogen, of chymotrypsin. Chymotrypsin fulfils the role of breaking down proteins into smaller peptides in the digestive tract. It also displays an interesting property in that, when it unfolds due to …
WEBINAR
Introduction Emerging contaminants, including perfluoroalkyl surfactants (PFAS) and Pharmaceuticals and Personal Care Products (PPCPs), have garnered increasing interest in recent years as their bioaccumulative nature and endocrine disrupting potential …
APPLICATION NOTE
Introduction Ammonia-nitrogen (NH3-N) occurs naturally in groundwaters at concentrations below 0.2 mg/L and up to 12 mg/L in surface waters, as a result of decomposition of organic matter. High concentrations of ammonia in surface waters are toxic to …
APPLICATION NOTE
Introduction In this application, the quantitative analysis of formaldehyde was successfully executed using the LAMBDA 265 UV/Vis spectrophotometer and Merck Spectroquant formaldehyde cell test kit. Principle Formaldehyde reacts with chromotropic acid …
APPLICATION NOTE
Introduction Chromium (VI) ions react with diphenylcarbazide in weakly phosphoric solution. The product, diphenylcarbazone, is a red-violet complex which can be detected photometrically at 550 nm. The chromate cell test kit is suitable for the …
APPLICATION NOTE
Introduction Iron is rarely found in its elemental form in nature due to the high tendency of its ions, Fe(II) and Fe(III), to form oxygen and sulphur containing compounds. Concentrations of iron found in surface waters are typically no greater than 1 …
APPLICATION NOTE
Introduction In surface waters, phosphorus commonly exists in its phosphate form. A high concentration of phosphate in water is indicative of domestic waste, industrial effluent, and agricultural runoff which can lead to eutrophication. Eutrophication …
APPLICATION NOTE
Introduction Iron is rarely found in its elemental form in nature due to the high tendency of its ions, Fe(II) and Fe(III), to form oxygen and sulphur containing compounds. Concentrations of iron found in surface waters are typically no greater than 1 …
APPLICATION NOTE
Introduction Principle Total phosphoric compounds in water sample is changed to phosphate (PO4 -) form by oxidation. After treatment with ammonium molybdate • ascorbic acid solution, blue color is created. This color is measured at 880 nm. In this …
APPLICATION NOTE
Introduction Paraffins and wax occur naturally in crude oil. There is a potential for wax deposition at every step from oil production to refining. The wax deposits reduce the internal diameter of tubular transportation pipelines, restrict or block …
WHITE PAPER
Relocation Strategies for Mission-Critical Lab Equipment in GLP/GMP Regulated Facilities … Relocation Strategies for Mission-Critical Lab Equipment in GLP/GMP Regulated Facilities … Introduction A complex relocation requires extensive planning and …
APPLICATION NOTE
Introduction The assembly and packaging phase of semiconductor manufacturing requires failure analysis and quality control processes which are of critical importance to final product quality and performance. Analytical measurements like Thermal Analysis …
APPLICATION NOTE
Introduction OIT is the abbreviation for oxidative induction time. It provides information about the oxidative stability of mainly polymer materials. This information is important because plastic parts age throughout their lifetime due to exposure to …
APPLICATION NOTE
Introduction PEEK (polyetheretherketone) is a common polymeric material used for a variety of applications. Normally it is supplied as an amorphous material. Normally it is supplied as an amorphous material. This material, when examined in a …
APPLICATION NOTE
Introduction This application note demonstrates the ability of Dynamic Mechanical Analysis (DMA) to investigate glass transitions in semisolid viscous materials using a PerkinElmer® DMA 8000. The sample chosen was honey, but the technique is suitable …
APPLICATION NOTE
Introduction LDPE (Low Density Poly Ethylene) is an important polymer used in the manufacture of plastic products. This application note details Dynamic Mechanical Analysis (DMA) experiments over a temperature and frequency range. The combination of …
APPLICATION NOTE
Introduction Ensure reliable UV protection compliance with EN 13758 standards using the LAMBDA 1050+ UV/Vis/NIR Spectrophotometer. This method accurately measures UVA and UVB transmittance in textiles, providing precise Ultraviolet Protection Factor …
APPLICATION NOTE
Introduction Accurately monitor nitrite levels in water with the LAMBDA 365+ UV/Vis Spectrometer and S23 Autosampler. This high-precision, automated method ensures compliance with EPA 354.1 standards, enabling fast, reliable detection of nitrite in …
APPLICATION NOTE
Introduction Plant-based foods using ingredients derived from fruits, nuts, vegetables, grains, and legumes, have gained increased attention for a variety of reasons, including but not limited to nutritional, environmental, sustainability, and ethical …
APPLICATION NOTE
Introduction While plant-based foods offer many benefits, they carry some challenges associated with their formulation, nutritional content, and safety. Nutritional and toxic elements need to be routinely monitored in incoming raw materials and finished …
APPLICATION NOTE
Introduction Concentrations of toxic elements in foods are present at trace to ultra-trace levels, requiring sensitive and reliable analytical techniques for accurate measurement. ICP-MS is a powerful technique with multi-element detection capabilities, …