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. 2020 Dec 22;6(1):188–196. doi: 10.1021/acsomega.0c04132

Table 2. Predicted vs Experimental Extraction Values.

      Sm
 Co
acid conc., % v/v temp, °C time, h expt. predicted expt. predicted
10 80 3 88.91 88.68 92.29 94.82
10 85 1 93.50 95.13 88.50 90.85
5 70 2 46.19 43.73 41.89 43.97
15 70 3 98.5 100.00a 99.00 100.00a
a

The predicted result, that is, calculated values were beyond 100%, may be because acid concentration was well beyond the factorial level value; hence, it is taken as 100%.