Ratiometric fluorescence response of N-methylacridone for methanesulfonic acid. |
| |
| Authors: | Toshinobu Masuda Sadatake Uda Yasuko Kamochi Akira Takadate |
| |
| Affiliation: | Daiichi College of Pharmaceutical Sciences, Tamagawa-cho, Minami-ku, Fukuoka 815-8511, Japan. tmasuda@daiichi-cps.ac.jp |
| |
| Abstract: | A new method for the sensitive and selective determination of stronger acids, such as methanesulfonic acid, based on an acid-base interaction with N-methylacridone fluorophore (1), is proposed. The fluorescence spectrum of 1 was changed drastically by the addition of methanesulfonic acid in methanol. A ratiometric analysis of methanesulfonic acid by measuring the fluorescence intensities of 1 both at 426 nm and 473 nm showed good linearity with a correlation coefficient of 0.9995. |
| |
| Keywords: | |
|
|
