title: Determination of gaseous acidic compounds by measuring fluorescence after their reaction with tetra-substituted amino aluminum phthalocyanine.
abstract: Based on the fluorescence enhancement of a red-region fluorescent dye, tetrasubstituted amino aluminum phthalocyanine (TAAlPc), in strongly acidic medium, a new method was developed for the detection of four strong acids (HCl, HBr, HNO(3) and H(2)SO(4)). Under optimal conditions the linear ranges of the calibration curves were 0.04-0.67 mol/l (HCl), 0.04-0.67 mol/l (HBr), 0.04-0.80 mol/l (HNO(3)) and 0.02-0.80 mol/l (H(2)SO(4)), respectively. The detection limits were 0.007 mol/l for HCl, 0.006 mol/l for HBr, 0.005 mol/l for HNO(3) and 0.007 mol/l H(2)SO(4.) This method has been applied to the analyses of four artificial samples with satisfactory results.
authors.affiliation: The Research Laboratory of SEDC of Analytical Science for Material and Life Chemistry, Department of Chemistry, Xiamen University, Xiamen, China.
authors.forename: D H
authors.initials: DH
authors.lastname: Li
authors.forename: Q Y
authors.initials: QY
authors.lastname: Chen
authors.forename: Q Z
authors.initials: QZ
authors.lastname: Zhu
authors.forename: F
authors.initials: F
authors.lastname: Li
authors.forename: H
authors.initials: H
authors.lastname: Zheng
authors.forename: S Y
authors.initials: SY
authors.lastname: Yang
authors.forename: J G
authors.initials: JG
authors.lastname: Xu