The Flexar Series 200/200a EP Photo Diode Array Detector provides true UV/VIS detection and high resolution spectral data. The excellent signal-to-noise characteristics make it ideally suited for low-volume or low concentration samples.
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Over time, exposure to ultra violet (UV) ,radiation from the sun or tanning beds can ,damage the skin’s cellular DNA, resulting in ,mutations that cause 3.5 million cases of skin ,cancers and about 11,500 deaths in the U.S. ,each year, for a total cost of nearly $2 billion. ,There are three types o ...
Biocides are chemical substances that are used to kill or inhibit harmful organisms. Biocides have a wide range of applications in consumer and industrial products.
This application will focus on the solid phase extraction (SPE) and HPLC analysis of chlorophenols in three tap water samples.
Dyes are used to intensify the color of food products and make them look tempting. They are also used to minimize color variation, and to prolong color stability on shelf. This application note presents a fast and robust HPLC method for the determination of dyes in beverages. Method conditions and p ...
Phenolic antioxidants and ascorbyl palmitate are commonly used in food to prevent the oxidation of oils. Oxidized oils cause foul odor and rancidity in food products.
The misuse of cold remedies can be prevented by appropriate medical indications and accurate label claims. To that end, the U.S. Food and Drug Administration and the pharmaceutical industry have made it a standard procedure to routinely test drug products to ensure the accuracy of the amount of a ...
In 2009, the United States Pharmacopeial Convention introduced the USP Dietary Supplements Compendium (DSC) – an industry directed resource featuring regulatory guidance, documents, supplemental information, and reference tools.
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 active compounds behind the claims of ginseng’s efficacy are ...
The goal of this work was to develop a simpler, faster and reliable LC method for the analysis of the six most widely-used isoflavones in soy products.
Foods from plants are complex mixtures of chemicals including both essential nutrients and biologically active non-essential nutrients, referred to as phytochemicals.
With the focus on possible vanilla extract adulteration, this application focuses on the HPLC separation and quantitation of vanillin, ethyl vanillin, and coumarin in three store-bought vanilla extracts.
Patulin is produced by various molds, which primarily infect the moldy part of apples. Removing the moldy and damaged parts of the fruit may not eliminate all the patulin because some of it may migrate into sound parts of the flesh.
This application describes the sample preparation and analytical method for the chromatographic separation and quantitative monitoring of twelve primary cannabinoids in the extracts of several food matrices by HPLC, using photodiode array (PDA) detection. The method provides exceptional chromatograp ...
One essential aspect of the quality control in beer brewing is making sure that the type and amount of a-acids are the same from batch to batch, and that their transformation into the bitter iso-a-acids during the brewing process gives individual brand its recognizable taste consistently . This appl ...
Sweeteners are low or zero-calorie sugar substitutes that are added in drinks, processed foods and pharmaceutical products to provide the sweet taste of table sugar, which is also called sucrose.
Polycyclic aromatic hydrocarbons (PAHs) are prevalent in a number of environmental matrices, and are created as a result of the combustion of fossil fuels. PAHs are water soluble and toxic to invertebrate aquatic organisms. They have also been shown to bioaccumulate in the environment, and their ...
Presented is an alternative technique to quantitate benzodiazepines in plasma using a rapid protein precipitation method with a fast LC separation method in combination with TOF-MS.
This application note will present a fast, sensitive and reliable UHPLC analysis of six common parabens. A 爱游戏平台注册登录 Flexar FX-15 UHPLC system fitted with a Flexar FX PDA photodiode array detector was used. The separation was achieved using a 爱游戏平台注册登录 Brownlee Analytical C18, 1.9 µm 50 mm x 2.1 ...
Water polluted by herbicides leach and runoff can cause human health problems including cancer tumors, reproduction deformity, disruption of the endocrine system and DNA damage. This application presents a sensitive and robust liquid chromatography method to test nine widely used herbicides (Figure ...
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 methylparaben); artificial sweeteners (acesulfame potassium, saccharin ...
Cosmetics utilized to prevent skin damage from the sun’s radiation often include ingredients which can pose a risk to human health at high enough concentrations. Oxybenzone, for example, can contribute to melanoma associated with the production of DNA-attacking free radicals upon UV exposure. Par ...
Alpha acids (a-acids) are a class of chemical compounds of primary importance in the production of beer. They are found in the resin glands of the flowers of the hop plant (Humulus lupulus) and are normally added to the boil after mashing the grains, providing beers with their aroma and bitter taste ...
Whether you’re a lab manager or a bench chemist, you know firsthand how things are changing quickly in food and environmental analysis. And your lab needs to change to keep pace.
For labs looking to expand their analytical portfolio to include HPLC-ICP-MS, 爱游戏平台注册登录 's NexSAR HPLC-ICP-MS brings together the inert NexSAR speciation analysis ready HPLC system and the revolutionary NexION ICP-MS in a seamless platform, integrated using Clarity chromatography software.
Product Certificate for the Flexar Solvent Manager
Product Certificate for the LC Flexar PDA Plus Detector, Photodiode Array Detector LC 300, and Multi-Wavelength UV/VIS Detector LC 300