TTAB tetradecyltrimethyl

TEP TL TLC TMB TMP TMP TMPG TNS TPB TRIS TRITC TTAB UA USDA-FSIS Triethylphosphine Total luminescence Thin layer chromatography T etramethylbenzidine 2,4,6,8-Tetrathiomorpholinopyrimido [5,4-d] pyrimidine Trimethylphosphine S S -Trimethoxyphenylglyoxal Potassium 2-p-toluidinylnaphthalene-6-sulfonate Tetradecylpyridine bromide Tris (hydroxymethyl) aminomethane Tetramethylrhodamine isothiocyanate Tetradecyltrimethyl ammonium bromide Uric acid U.S. Department of Agriculture-Food Safety and Inspection Service... 

Cetyltrimethyl ammonium bromide (CTAB) dodecyltrimethyl ammonium bromide (DTAB) tetradecyltrimethyl ammonium bromide (TTAB) trioctyl-methyl ammonium chloride (TOMAC) N-benzyl-N-dodecyl-hf-bis(2-hy-droxy ethyl) ammonium chloride (BDBAC) cetyl pyridinimn chloride (CPC) quaternary ammonium salt with carbon atoms of R ranging from 8-10 (CHj Rj N+ CL) (Aliquat 336)... 

FIGURE 52.8 Three most common ionic surfactants used for coating microfluidic devices. From left to right sodium dodecyl sulfate (SDS), cetyltrimethyl ammonium bromide (CTAB), and tetradecyltrimethyl ammonium bromide (TTAB). 

Figure 20.21. A mixture of an ionic surfactant and an oppositely charged polyelectrolyte typically gives an associative phase separation, as exemplified here by tetradecyltrimethyl-ammonium bromide (TTAB) and sodium hyaluronate (NaHy). (Redrawn from B. Lindman and K. Thalberg, in Interactions of Surfactants with Polymers and Proteins, E. D. Goddard and K. P. Ananthapadmanabhan (Eds), CRC Press, Boca Raton, FL, 1993, p. 252)...

Cationic sm-factants such as tetradecyltrimethyl-ammonium bromide (TTAB), cetyltrimethylammoni-um bromide (CTAB), and cetyltrimethylammonium chloride (CTAC) have also been useful for MEKC analysis. Most cationic sm-factants have an alkyltri-methylammonium group, and their counterions are halides. The addition of cationic surfactants to the backgroimd electrolytes (BGE) caused the reversal of electroosmotic flow (EOF) owing to a positively charged capillary wall on account of the adsorption of cationic sm-factants. As a result of the reversed EOF, the polarity of the electrodes has to be reversed in order to detect the analytes. 

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