Research Article

Selectivity of Brij-35 in Micellar Liquid Chromatographic Separation of Positional Isomers

Table 2

LSER system constants for various stationary and mobile phases reported in the literature.

ColumnMobile phaseSystem parametersRef.
e s a b

ODS 50% ACN0.181 1.492 [13]
Polar Endcapped50% ACN0.173 −0.444 −0.396 −1.261 1.323
Polar embedded50% ACN0.146 −0.339 −0.079 −1.581 1.320
TAG20% ACN0.345 −0.001 −0.315 −1.202 1.349 [14]
TAG25% MeOH0.4780.267 −0.493 1.496
Monolith C-1850% ACN0.07 −0.52 −1.55 1.49 [15]
Monolith C-1850% MeOH0.30 −0.41 −1.77 2.10
Monolith C-1810% MeOH0 −0.51 −0.26 −2.18 3.83
Monolith C-180.04 M Brij-35* −0.165 −0.087 −0.191 −1.284 1.080[16]

*Mobile phase is 0.04 M Brij-35 with 0.01 M sodium dihydrogen phosphate at pH 7.4 adjusted with NaOH at 40°C.