Stacking techniques | Stacking mechanism | Sample diluent | Sample clean-up | SEF |
Sweeping-MSS | Association between analytes and micelle, collapse initiated by organic solvent in BGE | Same kind of buffer as BGE without micelle | Need sample clean-up process | 12 - 60 [14] [15] [29] [30] [31] |
MSS-FASS | Micelle collapse initiated by organic solvent in TS, high electric field created by organic solvent in the TS | Micelle solution | Need sample clean-up process | 301 ? 329 [16] |
FASS-MSS | The conductivity difference between low conductivity sample and the TS, micelle collapse initiated by organic solvent in TS | Micelle solution | Need sample clean-up process | 200 [17] |
FASI-MSS | High electric field created by organic solvent in the sample solution, micelle collapse initiated by organic solvent in sample diluent | Low conductivity sample diluent containing large amount of organic solvent | Need sample clean-up process and the sample amount is vulnerable to sample ionic strength changes | 200 - 2534 [18] [19] [20] [21] [22] |