Use of liquid chromatography for the determination of interactions between bioactive compounds

Abstract

Molecular interactions can be easily determined both by thin-layer and high performance liquid chromatography. The theory and practice of the determination of molecular interactions and the various methods for the calculation of complex stability are presented. Examples of the application of liquid chromatographic methods for the measurements of molecular interactions are also discussed.

Capillary electrophoresis and herbicide analysis: Present and future perspectives

“…Separation of herbicides between them, from their degradation products and other matrix components makes most times necessary to use high‐resolution separation techniques such as LC , GC , or CE . Among these separation techniques, GC is not suitable for nonvolatile, thermolabile, or polar compounds, as is the case for most herbicides.…”

“…Berrada et al discussed in their review in 2003 the applicability of LC and CE to determine phenylurea herbicides as sulfonylureas and benzoylureas ; while the review by Fangshi and Juan (2005), only for phenylureas, shows that the suitability of using one or the other technique mainly depends on the physicochemical characteristics of the analytes to be determined . Comparison of different techniques (micellar electrokinetic chromatography, CE, LC, and GC) for separation of phenoxyacetic acids and dichlorprop was made by Cserháti et al in 1998 . The results showed a better performance of LC and CE with shorter development time and less user involvement.…”

“…The most used analytical techniques for individual separation of herbicides between them or from other sample components have been LC , which is the oldest; then, CE . LC and CE both allow separation of herbicides and their metabolites without derivatization, in most cases.…”

Pesticides

“…The sorption and sorption kinetics of the diphenyl ether herbicide acifluorfen in soils were investigated (299). Benfluralin, ethafluralin, and trifluralin were chromatographed using alumina sorbent with hexane as the mobile phase (300). The metabolism of [ 14 C]quizalofop-ethyl in soybean and cotton plants was examined (301).…”

Determination of Starane (Fluroxypyr) Herbicide Using Flow Injection Spectrophotometry

“…Chromatographic methods, most often gas chromatography and liquid chromatography, are used for the determination of starane herbicides [2][3][4][5][6] in environmental samples. However, environmental samples must be subjected to treatment before undergoing chromatographic analysis.…”