T. Takeuchi et T. Miwa, Indirect fluorimetric detection of cyclodextrins via postcolumn mixing with 2-p-toluidinyl-6-naphthalenesulfonate in liquid chromatography, HRC-J HIGH, 22(11), 1999, pp. 609-612
Cyclodextrins (CD's) were visualized by postcolumn mixing with 2-p-toluidin
ylnaphthalene sulfonate (TNS) in liquid chromatography. The indirect detect
ion is based on fluorescence enhancement due to the formation of an inclusi
on complex between TNS and CD's. beta-CD gave larger signal intensity than
alpha- and gamma-CD. Different selectivities were observed for alkyl-bonded
silica stationary phases with different chain length.