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Bulletin of the National Research Centre

Table 4 FFD predicted optimum setting for the preparation of MTSPAC

From: Screening of factors that influence the preparation of Dialium guineense pods active carbon for use in methylene blue adsorption: a full factorial experimental design

Variable

Setting

  

[Activating agent] M

5

Composite desirability

0.377082

Activation time (min)

30

Activating agent

NaOH

Response

Fit

SE Fit

95% Confidence interval

95% Prediction interval

Experimental values

Adsorption capacity

9.6514

0.0763

(9.3233, 9.9796)

(9.1674, 10.1355)

9.3350

Yield

26.45

1.45

(22.90, 30.01)

(20.18, 32.73)

21.25

  1. SE Fit, standard error of the fit
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