Dispersive liquid-liquid microextraction for the analysis of three organophosphorus pesticides in real samples by high performance liquid chromatography-ultraviolet detection and its optimization by experimental design

Recent advances in dispersive liquid-liquid microextraction for pesticide analysis

“…Mostly toxic in nature, their presence in water is a threat to humans and wild-life. DLLME seems to be the most promising method for pre-concentration of OPPs because of their presence in trace concentrations [46][47][48][49], so it is analyzed in various matrices, including an UA-DLLME-SFOD for the determination of organophosphorus pesticides in environmental water [46]. The EFs were 215-557.…”

pH-sensitive hydrogel for coacervative cloud point extraction and spectrophotometric determination of Cu (II): optimization by central composite design

“…Essential regression and experimental design for chemists and engineers (EREGRESS), as a MS Excel Add-in software [32,33] was used to design the experiments and to model and analyze the results. (1 mol L −1 ) was added into the tube.…”

Separation and Preconcentration by Dispersive Liquid–Liquid Microextraction Procedure: Recent Applications

“…UV at fixed wavelength was used for determination of a grand variety of organic compound such as chlorophenols [65], drugs [66,71,77,82,84], insecticides [69,70], aromatic amines [72,73], pesticides [74,75], UV filters [81], additive flame retardant [64,67,68,85], antioxidants [86], etc.…”