When testing the pH for oil-in-water (O/W) type cosmetics, it's essential to use reliable reference materials that mimic the characteristics of these products. FirstStandard® reference materials are specifically formulated to mimic the properties of O/W type cosmetics. These materials are...
A variety of veterinary drugs are needed in livestock and fish breeding, and hundreds of veterinary drugs are commonly used in the market. These veterinary drugs have certain residues in animal foods that can harm our health long-term, therefore supervision...
To ensure the safety of agricultural products, there is a routine monitoring system set up to perform multiple analyses of pesticides in vegetables, fruits and other agricultural products. Among the 70 pesticides specified for the annual routine monitoring, 51 of them...
Perfluorinated alkyl substances (PFAS), is a class of chemicals containing more than 4,000 congeners, refers to perfluoroalkyl and polyfluoroalkyl substances containing at least one perfluorocarbon atom. The most commonly used are perfluorocarboxylic acids (PFCAs) and perfluorosulfonic acids (PFSAs). Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid...
Chlorinated paraffins are a series of polychlorinated alkanes used in many industrial and commercial processes, generally containing 40% to 70% chlorine. Chlorinated paraffins are new pollutants that are of great concern today, with high production, use and emissions around the...
Short-Chain Chlorinated Paraffins (SCCPs) are a mixture of chlorinated hydrocarbons with a chain length of 10 to 13 carbon atoms, and a chlorine content of 40-70%. SCCPs are primarily used in metalworking applications, PVC processing and are also used as plasticizers and...
Pharmaceutical and Personal Care Products (PPCPs) are a new series of pollutants with multiple sources, such as: antibiotics, synthetic musk, pain relievers, antihypertensive drugs, contraceptives, hypnotics, obesity drugs, hair gel, hair dye, fungicide, etc. Many PPCPs have high bioactivity, optical...
Mix Standard Solutions - Far more than just mixing and dissolving Mix standard solutions consist of a wide variety of components (analytes) and can range from just two to hundreds of components. These commonly used reagents are used in analytical...
This method includes 181 common veterinary drugs of 17 classes, such as steroid hormones, sulfonamides, nitroimidazoles, β-adrenergic receptors, quinolones, and mycotoxins. It has been tested in samples of chicken, beef and pork, and proved to be effective for screening and quantitative analysis of multiple...
