title: An overview of liquid phase microextraction approaches combined with UV-Vis spectrophotometry.
abstract: Ultraviolet and visible spectrophotometer has become a popular analytical instrument in the modern day laboratories. However, the low concentrations of many analytes in samples make it difficult to directly measure them by UV-Vis spectrophotometry. This overview focuses on the combinations of microvolume UV-Vis spectrophotometry with miniaturized approaches to sample preparation, namely, single drop microextraction (SDME), dispersive liquid-liquid microextraction (DLLME), cold induced aggregation microextraction (CIAME), in situ solvent formation microextraction (ISSFME), ultrasound assisted emulsification microextraction (USAEME), solidified floating organic drop microextraction (SFODME), and hollow fiber based liquid phase microextraction (HF-LPME) to improve both the selectivity and sensitivity. Integration of these techniques provides unique advantages which include availability, simplicity of operation, low cost, speed, precision and accuracy; hence making them a powerful tool in chemical analysis.
authors.affiliation: Department of Chemistry, Faculty of sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Malihe
authors.initials: M
authors.lastname: Dehghani Mohammad Abadi
authors.forename: Narges
authors.initials: N
authors.lastname: Ashraf
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Chamsaz
authors.forename: Farzaneh
authors.initials: F
authors.lastname: Shemirani
mesh_terms: D003080:Cold Temperature; D059627:Liquid Phase Microextraction / Q000379:methods*; D012997:Solvents / Q000737:chemistry; D013010:Sonication; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D018511:Systems Integration
chemical_list: D012997:Solvents