Spectrophotometric determination of aluminum with m-carboxyphenylfluorone, a novel chemical probe, and its application.
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.
Kamino
Shinichiro
S
Osaka University of Pharmaceutical Sciences, 4-20-1, Nasahara, Takatsuki, Osaka, Japan. d05001@gly.oups.ac.jp
Yamaguchi
Takako
T
Mori
Terumi
T
Miyamoto
Mika
M
Kusumi
Yukimi
Y
Fujita
Yoshikazu
Y