Capillary electrophoresis of cationic surfactants with tetrazolium violet and of anionic surfactants with adenosine monophosphate and indirect photometric detection
1996; Elsevier BV; Volume: 739; Issue: 1-2 Linguagem: Inglês
10.1016/0021-9673(96)00216-6
ISSN1873-3778
AutoresShahab A. Shamsi, Neil D. Danielson,
Tópico(s)Innovative Microfluidic and Catalytic Techniques Innovation
ResumoThe compounds tetrazolium violet (TZV) and adenosine monophosphate (AMP) are characterized as electrolyte components for the respective capillary electrophoresis (CE) separations of quaternary ammonium compounds and sulfonated or carboxylated surfactants with indirect photometric detection (IPD). TZV is particularly effective for the visualization of C12-C18 dialkyldimethyl quaternary ammonium compounds and cis/trans adamantane isomers. Detection limits are in the 0.25-1 mg/l range at 300 nm. Improved IPD of C6-C18 sarcoine-type surfactants is found with AMP as compared to naphthalene monosulfonate. Detection limits for alkane sulfates and alkane sulfonates are in the 0.5-3 mg/l range. Both TZV and AMP are deemed particularly well suited for CE with IPD detection of long chain (>C12) nonchromorphoric surfactants.
Referência(s)