Simultaneous Biparametric Determination of Total Calcium and Potassium in Biological Fluidsby Flow Injection Analysis──Use of Powell's Method in the System Optimization

Alberto N. Araujo, Shiao Jun, Jose L. F. C. Lima, Julian Alonso, Manel Poch, Manel del Valle

Chemical Research in Chinese Universities . 1994, (1): 5 -15 .