Blanco M, Coello J, Iturriaga H, Maspoch S, Riba J, Rovira E
Departamento de Química, Unidad de Química Analítica, Universidad Autónoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain.
Talanta. 1993 Feb;40(2):261-7. doi: 10.1016/0039-9140(93)80332-l.
A multivariate calibration method based on principal component regression analysis is applied to the resolution of mixtures by kinetic methodology. Gallium(III) and Al(III) were determined in mixtures on the basis of their different rate of reaction with 4-(2-pyridylazo)resorcinol in a slightly basic medium by using a stopped-flow injection procedure. Mixtures containing 1-5 mg/l. Ga(III) and 20-100 mg/l. Al(III) were successfully resolved with errors less than 10%.
一种基于主成分回归分析的多元校准方法被应用于通过动力学方法解析混合物。采用停流注射程序，基于镓（III）和铝（III）在微碱性介质中与4-（2-吡啶偶氮）间苯二酚的不同反应速率，对混合物中的镓（III）和铝（III）进行测定。成功解析了含有1 - 5毫克/升镓（III）和20 - 100毫克/升铝（III）的混合物，误差小于10%。
