Sunscreens are classified as over-the-counter (OTC) drug products in the USA. Zinc oxide is one of the active ingredients approved (up to 25%) by the U.S. Food and Drug Administration (FDA) for use in sunscreens. Zinc oxide is a powdered mineral that sits on the outermost layer of the skin scattering, reflecting, and absorbing ultraviolet […]
Sports doping is a substances that have the capability to improve performance in humans. In sports, those substances are sometimes referred to as endogenic aids and one highly popular reference is anabolic steroids or their precursors with the colloquial term “steroids.” Steroids are very common hormones in our bodies, steroids help build muscle tissue and […]
Ion chromatography (IC) is a widely used analytical technique for the determination of anionic and cationic analytes in various sample matrices. In modern IC systems, high purity acid, base, or salt eluents are generated electrolytically using deionized water as the carrier. The Reagent-Free Ion Chromatography (RFIC) systems with electrolytic eluent generation make it possible to […]
Worldwide there are many regulatory organizations safeguarding the environment by the issuance of health and environmental standards, such as the United States (U.S.) Environmental Protection Agency (EPA) and the European Committee for Standardization (CEN). These standards include many standardized guidelines for the analysis of hazardous environmental contaminants. The challenge for today’s laboratories is to correctly […]
Analyses of organic pollutants are becoming increasingly important, and often with the need to isolate and analyze trace organic compounds from a variety of matrices such as soil, sediment, fruits, and vegetables. In this regard, sample pretreatment constitutes an important step prior to analysis. The purpose of the sample pretreatment step is to selectively isolate […]