Use of a database of plots of pesticide retention (R
F) against mobile-phase composition.Part I. Correlation of pesticide retention data in normal- and reversed-phase systems and their use to separate a mixture of ten pesticides by 2D TLC |
| |
| Authors: | T Tuzimski E Soczewinski |
| |
| Institution: | (1) Department of Inorganic and Analytical Chemistry, Medical University, Staszica 6, 20-081 Lublin, Poland |
| |
| Abstract: | Summary Ten pesticides have been completely separated by two-dimensional (2D) development on TLC plates coated with coupled layers
of octadecyl silica (reversed-phase, RP) and plain silica (normal-phase, NP). The binary mobile phases, aqueous-organic for
RP chromatography and nonaqueous for NP chromatography, were chosen from plots ofR
F against mobile-phase composition and graphicalR
F(RP)-R
F(NP) correlations. The different selectivity of the RP and NP systems enabled dispersion of spots over the plate area and good
separation. |
| |
| Keywords: | Thin-layer chromatography Reversed-phase and normal-phase systems Retention-mobile phase composition relationships Pesticides Environmental analysis |
| 本文献已被 SpringerLink 等数据库收录！ |
