Gaby Aprilia Kusumawati

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Questions related from Gaby Aprilia Kusumawati

Why was the nitrogen element in chitosan who modified tannic acid when tested by SEM-EDX not detected or decreased than pure chitosan?

I sythesis membran chitosan, membran chitosan/tripolifosfat, and membran chitosan/tannic acid/tripolifosfat. The reaction is, hydroxil (OH) of chitosan will banded with phenolik (OH) of tannic...

21 October 2020 5,553 3 View

I measured membrane chitosan who modified tannic-acid and absorb Cu(II) in UV-Vis spectrometer with wavelength 400-800nm, why the peak not smooth?

I synthesized a transparant membrane from chitosan which was modified with tannic acid ligands and cross-linked with tripolyphosphate to detect Cu (II) metal in solution. When I dip this membrane...

13 October 2020 7,713 7 View