Table 2 Results of Mann Whitney U test of ion release after different times of AgCuLi NRs and AgCu NRs
Metal measured | Release time (hrs.) | Type of metallic NRs | Na | Sum of ranks | Mean rank | Mann–Whitney U | Asymp. Sig. (2-tailed) |
|---|---|---|---|---|---|---|---|
Cu | 2 | Tri | 32 | 796 | 24.8 | 268.00 | 0.00 |
Bi | 36 | 1550 | 43.0 | ||||
24 | Tri | 32 | 765.5 | 23.9 | 237.50 | 0.00 | |
Bi | 36 | 1580.5 | 43.9 | ||||
Ag | 2 | Tri | 32 | 992.0 | 31.0 | 464.00 | 0.169 |
Bi | 36 | 1354.0 | 37.6 | ||||
24 | Tri | 32 | 1050.0 | 32.8 | 522.00 | 0.50 | |
Bi | 36 | 1296.0 | 36.0 |