Both the NaOH and Chelex 100 and the HCl‐NaOH‐Chelex produced satisfactory results and the later procedure by far the best resolved spectra.doi:10.1002/pauz.19990280514PachalyWILEY‐VCH VerlagPharmazie in Unserer Zeit
The bulk density measure using the Archimedes principle according to ASTM B962 - 13 and porosity measure based on B963 – 13.doi:10.1002/zamm.19560360325BurmeisterH.‐LInternational Postgraduate Conference on Engineering & Management