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Table 9: Results of calcinated samples analysis using EDXRF Spectrophotometer

From: Brette Pearl Spar Mable (BPSM): a potential recoverable catalyst as a renewable source of biodiesel from Thevetia peruviana seed oil for the benefit of sustainable development in West Africa

Calcinated samples A(pre-soaked) B C D(pre-soaked) E(pre-soaked) F G H(pre-soaked)
Duration (hrs) 4 4 5 5 6 6 7 7
% Potassium 56.19 54.73 58.14 58.48 56.94 57.89 55.16 56.08