期刊
TALANTA
卷 99, 期 -, 页码 1-12出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2012.05.027
关键词
UV-Vis spectrophotometry; Liquid phase microextraction (LPME); Integration
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 (CAME), 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. (C) 2012 Elsevier B.V. All rights reserved.
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