Table 3 Value of estimated effects of experimental parameters for SCCP determination
Term | Effect | t | p |
|---|---|---|---|
Constant | 21,97 | 0.000 | |
Sample amount | 3,025,444 | 4.63 | 0.006 |
Extractant volume | 2,127,211 | 3.26 | 0.023 |
Boiling time | 848,386 | 1.30 | 0.251 |
Rinsing time | 2,377,142 | 3.64 | 0.015 |
Alumina amount | 101,924 | 0.16 | 0.882 |
Acid silica amount | − 1,763,039 | − 2.70 | 0.043 |
Elution volume | − 489,850 | − 0.75 | 0.487 |
Ct Pt | − 7.47 | 0.001 |