COMBINING MATHEMATICAL-MODELING AND THE POWELL ALGORITHM FOR THE OPTIMIZATION OF LOW-INJECTION SANDWICH SYSTEMS

• Type: Article in International Scientific Journal
• Date: 1992

Authors

POCH, M (Author) Other; MONTESINOS, JL (Author) Other; DELVALLE, M (Author) Other; ALONSO, J (Author) Other; ARAUJO, AN (Author) FFUP; LIMA, JLFC (Author) FFUP

Journal

Title: Analusis

Vol. 20

Pages: 319-324

ISSN: 0365-4877

Publisher: EDP Sciences

Indexing

ISI Web of Knowledge - 5 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-001-PFY

Abstract (EN): Results obtained in the optimization of a flow-injection sandwich system are presented. An adaptation of the Powell algorithm for the optimization procedure is used which includes the constraints involved. The function that predicts the response of the system to the changes of different manifold parameter values (injection volume, flow rate, and coil length) is obtained using a mathematical model which considers the injection of the sample as a combination of two opposing steps, one for the leading portion of the sample and another for the trailing portion. With this combination the optimal conditions of a sandwich system may be computed reducing the experimentation (only for determinations of dispersion coefficients and kinetic constants). This approach has been applied to a sandwich system considering standard values of these parameters. The evolution of the system variables and the form of the peaks for different steps along the optimization procedure are presented. It is concluded that the proposed approach is useful as an approximation step towards optimization.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6