Comparação entre um trocador aniônico de sal de amônio quaternário de quitosana e um trocador comercial na extração de fósforo disponível em solos Comparison between an anionic exchanger of chitosan quaternary ammonium salt and a commercial exchanger in the extraction of available phosphorus in soils
oleh: Affonso Celso Gonçalves Junior, Herbert Nacke, Valfredo Tadeu de Fávere, Gilmar Divino Gomes
| Format: | Article |
|---|---|
| Diterbitkan: | Sociedade Brasileira de Química 2010-01-01 |
Deskripsi
<abstract language="eng">The present work aimed modify chemically the chitosan (QTS) surface to obtain a reticulate chitosan quaternary ammonium salt (SAQQR), and compare this anionic exchanger with an commercial ion exchanger in the extraction of available phosphorus in soils. The results showed that the two exchangers are identical, extracting similar and proportional quantities of available phosphorus in the studied soils, and the anionic exchanger of SAQQR provides a high chemical stability, not affected by the pH difference of soils.