With the rapid development of the chemical industry and the increasing utilization of natural compounds, environmental pollution has become a growing concern. According to recent reports, over 350 types of substances have been identified as environmental pollutants, which can be found in air, soil, water, fish, and poultry. Some of these pollutants are not easily degradable and can accumulate through the food chain, further contaminating meat, eggs, fruits, vegetables, and other essential food sources.
Environmental monitoring and detection became a key research area in analytical chemistry as early as the beginning of the last century. High-performance liquid chromatography (HPLC) is one of the most advanced separation and analytical techniques developed based on classical liquid and gas chromatography. It utilizes high-pressure pumps, sensitive detectors, efficient stationary phases, and intelligent software, offering higher efficiency, faster analysis, and better resolution than traditional methods.
In recent years, HPLC technology has seen significant advancements, especially in environmental monitoring. In many developed countries, including the United States, HPLC is widely used for environmental testing. For example, the EPA has established several standard methods, such as EPA 531 for detecting methyl carbamate insecticides in drinking water, EPA 547 for measuring glyphosate using fluorescence, and EPA 550 for analyzing polycyclic aromatic hydrocarbons (PAHs) in water samples.
Other EPA methods include EPA 605 for determining benzidine compounds in wastewater, EPA 610 for PAHs in wastewater, EPA 6610 for carbamate pesticides using post-column derivatization fluorimetry, and EPA 6651 for glyphosate herbicides in wastewater. Additionally, EPA 8310 outlines the use of LC/fluorescence to analyze PAHs in solid waste, and even some harmful organic compounds in gases can be detected using HPLC.
HPLC is extensively applied in environmental monitoring, particularly for the separation and analysis of complex organic pollutants that are large in molecular weight, low in volatility, and thermally unstable. These include polycyclic aromatic hydrocarbons, phenols, biphenyls, phthalates, benzidines, anionic surfactants, and various organic pesticides and herbicides.
Beijing Huasheng Spectrum Instrument Co., Ltd. specializes in manufacturing and selling professional chromatographs and related accessories. If you're looking for reliable and high-quality equipment for your lab or research, feel free to contact us for more information and to place your order today.
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