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Characterization of Cuban and Brazilian natural zeolites by photoacoustic spectroscopy and electron paramagnetic resonance.

This report describes the photoacoustic and electron paramagnetic resonance investigations of Brazilian and Cuban zeolites. Photoacoustic optical absorption measurements indicate the presence of iron... ...

Repository: BDPA     Publication year: 2022

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Estudo comparativo de duas zeólitas naturais visando ao controle da concentração de nitrogênio disponível no solo para plantas sob adubação.

O uso indiscriminado de fertilizantes nitrogenados pode causar danos ambientais. O uso rotineiro de espalhamento de fertilizantes na superfície do solo causa a per da de nutrientes nitrogenados, como... ...

Repository: BDPA     Publication year: 2008

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Nutrient release by a Brazilian sedimentary zeolite.

This report describes the characterization of a sedimentary occurrence from the Parnaíba Basin, Brazil, containing the zeolite stilbite intertwined with smectitic clay mineral. The head samples from d... ...

Repository: BDPA     Publication year: 2009

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