Spectrophotometric determination of aluminum with m-carboxyphenylfluorone, a novel chemical probe, and its application. |
| |
| Authors: | Shinichiro Kamino Takako Yamaguchi Terumi Mori Mika Miyamoto Yukimi Kusumi Yoshikazu Fujita |
| |
| Institution: | Osaka University of Pharmaceutical Sciences, 4-20-1, Nasahara, Takatsuki, Osaka, Japan. d05001@gly.oups.ac.jp |
| |
| Abstract: | A highly spectrophotometric method for the determination of aluminum was developed. This method used the color reaction between m-carboxyphenylfluorone (MCPF) as a novel chemical probe and aluminum in the presence of a surfactant, poly(N-vinylpyrrolidone) (PVP, K-90) (0.03 - 1.40 microg of aluminum in a final volume of 10 ml at 561 nm). The proposed method showed excellent sensitivity (molar absorptibity of 1.70 x 10(5) l mol(-1) cm(-1)) and reproducibility (within-day precision: RSD = 0.35% n = 6, between-day precision: RSD = 0.44% n = 6). Linearity was achieved over the range 3 - 140 microg L(-1) with a correlation coefficient of 0.9999, and the effects of foreign substances were low. |
| |
| Keywords: | |
|
|
