ABSTRACT
This chapter provides a comprehensive review of ultra-performance liquid chromatography (UPLC) as a technique of identification and quantification of environmental bioindicators residues in food, environmental, and biological samples from different points of view based on the current state of knowledge. UPLC is one of the most frequently applied chromatographic techniques in analyzing food components. The UPLC technique has been shown to provide the analysts with superior chromatographic resolution, reduced analysis time, reduced solvent consumption, and increased sensitivity when employed for tea-related analysis. The exponential growth of human activity and also fast industrialization has been implicated in a broad range of chemical pollution all over the world. Many kinds of xenobiotic substances like pharmaceuticals, synthetic fragrances, pesticides, drugs, and other contaminants are increasing concentrations as residues in different environmental samples during industrial processing and other human activities.
