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MEKC-sweeping technique

Cation- and anion-selective exhaustive injection sweeping (CSEI-sweep and ASEI-sweep) techniques are also available in MEKC. CSEI-sweep and ASEI-sweep are combinations of two online preconcentration techniques, sample stacking with electrokinetic injection and sweeping, that can provide more than 100,000-fold enhancements in detection sensitivity. An electropherograms of tap water analysis by CSEI-sweep-MEKC is illustrated in Figure 7. The results of this study suggest that CSEI-sweep-MEKC can be used for the analysis of quaternary ammonium herbicides in drinking water. [Pg.3023]

Senkirkine, senecionine, retrorsine, seneciphylline Kuan donghua MEKC 20 mM borate (pH 9.1), 30 mM SDS, and 20 % methanol analysis using dynamic pH junction-sweeping technique UVat220nm [131]... [Pg.1162]

See other pages where MEKC-sweeping technique is mentioned: [Pg.122]    [Pg.122]    [Pg.685]    [Pg.1162]    [Pg.131]    [Pg.252]    [Pg.184]    [Pg.118]    [Pg.3022]    [Pg.4373]    [Pg.484]   


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MEKC (

Sweep

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