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651-675 of 2477 Resource Library
651-675 of 2477 Resource Library
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 Isoflavones are water-soluble compounds found in many plant and food sources. Designated as phytoestrogens, isoflavones are structurally similar to to the female hormone estrogen, and have been shown to exhibit a number of beneficial …
APPLICATION NOTE
Introduction Aflatoxins are a group of naturally occurring mycotoxins produced by molds such as Aspergillus flavus and Apsergillus parasiticus, which have detrimental effects on humans, animals, and crops resulting in illness and economic losses. …
APPLICATION NOTE
Introduction Customer complaints and costly product waste are common when erroneous amounts of seasoning are delivered in the process. The Perten DA 7440 On-line NIR instrument uses modern diode array technology to provide real-time and continuous …
APPLICATION NOTE
Summary The mechanical properties of pasta are very important. In its dried form, it is very brittle and quite stiff. If introduced into a humid environment and heated, the properties of the pasta change dramatically. This application note will …
APPLICATION NOTE
Introduction Learn how to detect whisky and spirits adulteration using a field-portable GC/MS through this note. … Method Development for Identification of Adulterated Spirits using Field Portable …
APPLICATION NOTE
Introduction Pesticides are employed in the growing of crops to prevent damage from a number of pests and fungi. When crops are grown to produce feed for livestock, there is a potential for pesticides residues to remain on the feeding stuffs, posing a …
WEBINAR
Introduction To HPLC Column Selection … Introduction One of the key features in developing a HPLC chromatographic method is the selection HPLC column. It is the focus of this presentation to review the key factors that go into HPLC column selection. These …
APPLICATION NOTE
Introduction Owing to the toxicity of heavy metals, it is increasingly important to test cannabis flowers and other cannabis derivatives so that patient and consumer safety is maintained as the use of cannabis becomes more common. This need has …
APPLICATION NOTE
Although apple juice is a healthy, and often preferred, alternative to artificially flavored and carbonated drinks for many parents to give to children, concern has been raised over the presence of arsenic within. This work demonstrates a reversed-phase …
APPLICATION NOTE
Introduction Traditional analysis by chromatography and mass spectrometry often requires sample cleanup to minimize matrix effects and to avoid contamination of the ion source in the mass spectrometer. However, sample preparation is usually labor …
APPLICATION NOTE
Introduction The production of cannabis extracts and oils for medicinal and recreational products has increased significantly in North America. This growth has been driven by both market demand in newly legalized states and patient demand for a greater …
APPLICATION NOTE
Introduction Crude Palm Oil (CPO) is a raw material used in the production of margarine and other vegetable oil based food products. CPO is traded and there are quality specifications based on free fatty acids (FFAs) as well as moisture and impurities. …
APPLICATION NOTE
Introduction The DA 7250 NIR analyzer is used in the rice industry to test for moisture, protein, starch and amylose as quality parameters to determine the value. … Analysis of Moisture, Protein, Starch and Amylose in Rice Using the DA 7250 …
APPLICATION NOTE
Introduction For soybean processors it is important to have full knowledge of the quality of the soybean they purchase, as its value to a high degree depends on the composition of, for example, oil and protein. For seed breeders, the fatty acid profile …
APPLICATION NOTE
Introduction For sunflower seed processors and feed manufacturers alike, rapid and accurate quality control of sunflower seed meal is important to ensure nutritional specification on the meal is correct. DA 7250 accurately can analyze moisture, protein, …
APPLICATION NOTE
Introduction The Grape crop is one of the most important fruit crops consumed in the world. Grapes are consumed both as fresh and as processed products, such as wine, jam, juice, jelly, grape seed extract, raisins, vinegar and grape seed oil. A large …
APPLICATION NOTE
Introduction Agricultural growing of hemp products for the purposes of cannabidiol (CBD) extraction was legalized in the United States with the passing of the Agricultural Improvement Act of 2018. Since the act passed, heightened concern over the use of …
WEBINAR
Introducing Enlightened UV-Vis … Introduction Scientists, QA/QC analysts, and lab technicians in a wide variety of fields need to analyze samples quickly, accurately, and easily through their UV-Vis systems. They need better turnaround times and …