Table 6 Comparison of observed and predicted values of different objective functions under optimal conditions
pH | Percent acetonitrile | Ionic strength | Responses | |
|---|---|---|---|---|
4.50 | 77.00 | 16.00 | Y1 | Y2 |
Experimental value | 4.15 | 5.45 | ||
Predicted value | 4.00 | 5.60 | ||
Average error % | + 3.75 | − 2.67 | ||