Made available in DSpace on 2021-06-25T11:02:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01. Added 1 bitstream(s) on 2021-07-15T15:05:33Z : No. of bitstreams: 1 S0103-50532021000701345.pdf: 218304 bytes, checksum: f5923ddcc0d3db563816f2d9ef31113a (MD5); Agência Nacional do Petróleo, Gás Natural e Biocombustíveis; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Naci...
Made available in DSpace on 2020-12-12T01:51:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01. Added 1 bitstream(s) on 2021-07-15T15:07:22Z : No. of bitstreams: 1 S0103-50532020000100201.pdf: 802994 bytes, checksum: 3466162bdcdee7f288db8220b1b96ce2 (MD5); This study shows a preparation and evaluation of a new non-expensive TiO2 based photocatalyst built over sand grains surfaces as an alternative...
Made available in DSpace on 2019-10-06T16:43:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2021-07-15T15:05:22Z : No. of bitstreams: 1 S0103-50532019000701534.pdf: 308786 bytes, checksum: aec80720526c0a3fe4fbfa95c1bafbf9 (MD5); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); The present work aims at studying the preconcentration of Cu2+ ions by so...
Made available in DSpace on 2018-12-11T17:19:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-06-01. Added 1 bitstream(s) on 2021-07-15T15:03:36Z : No. of bitstreams: 1 S0103-50532018000601225.pdf: 1538003 bytes, checksum: ad1452f805cfd4fc916d0ac7c3019c08 (MD5); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); A new online solid phase preconcentration method using the new SiO2/Al2O...