9 documents found, page 1 of 1
Strontium mono-chloride — A new molecule for the determination of chlorine usin...
Pereira, Éderson R.; Welz, Bernhard; Lopez, Alfredo H. D.; Gois, Jefferson S. de; Caramori, Giovanni Finoto; Borges, Daniel L. G.; Carasek, EduardoTexto completo: acesso restrito. p.1–6; Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2015-03-24T13:02:32Z No. of bitstreams: 1 Éderson R. Pereira.pdf: 520174 bytes, checksum: 30d4ae7e4ceb45fd3b3cb2ea2430b63f (MD5); Made available in DSpace on 2015-03-24T13:02:32Z (GMT). No. of bitstreams: 1 Éderson R. Pereira.pdf: 520174 bytes, checksum: 30d4ae7e4ceb45fd3b3cb2ea2430b63f (MD5) Previous issue date: 201...
Use of Al2O3 in an automated on-line pre-concentration system for determination...
Souza, Érica Silva; Martins, Amarildo Otavio; Fajardo, Humberto Vieira; Probst, Luiz Fernando Dias; Carasek, EduardoThis paper presents the development of an on-line pre-concentration system to determine cadmium(II) in aqueous samples. The analyte was trapped in a mini-column filled with Al2O3 in the form of macro-spheres obtained by the mixture of Al(NO3)3•9H2Oaq and chitosan dissolved in acetic acid. The mixture was dropped into an NH4OH aqueous solution under rigorous agitation using a peristaltic pump, the macro-spheres ...
Cloud point extraction for the determination of lead and cadmium in urine by gr...
Maranhão, Tatiane de A.; Martendal, Edmar; Borges, Daniel L. G.; Carasek, Eduardo; Welz, Bernhard; Curtius, Adilson José; Maranhão, Tatiane de A.Texto completo: acesso restrito. p. 1019-1027; Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-01-20T15:48:11Z No. of bitstreams: 1 1-s2.0-S0584854707001589-main.pdf: 1436145 bytes, checksum: 55eecc502bb546dd9f82f25a8512606e (MD5); Made available in DSpace on 2014-01-20T15:48:11Z (GMT). No. of bitstreams: 1 1-s2.0-S0584854707001589-main.pdf: 1436145 bytes, checksum: 55eecc502bb546dd9f82f25a8512606e (MD...
Method development and optimization for the determination of selenium in bean a...
Welz, Bernhard; Shaltout, Abdallah A.; Castilho, Ivan N. B.; Carasek, Eduardo; Gonzaga Martens, Irland B.; Martens, Andreas; Cozzolino, Silvia M.F.Texto completo: acesso restrito. p. 1350–1356; Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-02-25T11:01:32Z No. of bitstreams: 1 Bernhard Welz.pdf: 877260 bytes, checksum: 2323a5993edc1be1cfd913a07e05ac56 (MD5); Made available in DSpace on 2014-02-25T11:01:32Z (GMT). No. of bitstreams: 1 Bernhard Welz.pdf: 877260 bytes, checksum: 2323a5993edc1be1cfd913a07e05ac56 (MD5) Previous issue date: 2011; ...
Comparison of three different sample preparation procedures for the determinati...
Castilho, Ivan N. B.; Welz, Bernhard; Andrade, Jailson Bittencourt de; Smichowski, Patricia; Shaltout, Abdallah A.; Colares, Lígia; Carasek, EduardoTexto completo: acesso restrito. p. 689–695; Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-08-26T13:18:20Z No. of bitstreams: 1 Ivan N. B. Castilho.pdf: 640964 bytes, checksum: edb31b9272154c687c42d94bf6df5120 (MD5); Made available in DSpace on 2014-08-26T13:18:20Z (GMT). No. of bitstreams: 1 Ivan N. B. Castilho.pdf: 640964 bytes, checksum: edb31b9272154c687c42d94bf6df5120 (MD5) Previous issue da...
Determination of sulfur in coal using direct solid sampling and high-resolution...
Mior, Renata; Morés, Silvane; Welz, Bernhard; Carasek, Eduardo; Andrade, Jailson Bittencourt de; Mior, Renata; Morés, Silvane; Welz, BernhardTexto completo: acesso restrito. p. 368–374; Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-12-17T12:36:14Z No. of bitstreams: 1 Renata Mior.pdf: 601957 bytes, checksum: 1dec8ac65854df78eaa59c1ea468ec75 (MD5); Made available in DSpace on 2014-12-17T12:36:14Z (GMT). No. of bitstreams: 1 Renata Mior.pdf: 601957 bytes, checksum: 1dec8ac65854df78eaa59c1ea468ec75 (MD5) Previous issue date: 2013; An ana...
Effect of magnesium acetylacetonate on the signal of organic forms of vanadium ...
Kowalewska, Zofia; Welz, Bernhard; Castilho, Ivan N. B.; Carasek, Eduardo; Kowalewska, Zofia; Welz, Bernhard; Castilho, Ivan N. B.; Carasek, EduardoTexto completo. Acesso restrito. p. 66–74; Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-07-08T13:25:48Z No. of bitstreams: 1 66666666666.pdf: 728201 bytes, checksum: c25bb0b751dbb4d1235f2e9c70b0650d (MD5); Made available in DSpace on 2013-07-08T13:25:48Z (GMT). No. of bitstreams: 1 66666666666.pdf: 728201 bytes, checksum: c25bb0b751dbb4d1235f2e9c70b0650d (MD5) Previous issue date: 2013; The...
Determination of fluorine in tea using highresolution molecular absorption spec...
Morés, Silvane; Monteiro, Gustavo C.; Santos, Flaviane da Silva; Carasek, Eduardo; Welz, Bernhard; Morés, Silvane; Monteiro, Gustavo C.texto completo: acesso restrito. p. 2681– 2685.; Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2012-02-07T18:49:19Z No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S0039914011007636-main.pdf: 228442 bytes, checksum: 5115211d6b635c51dff98f018f273a32 (MD5); Made available in DSpace on 2012-02-07T18:49:19Z (GMT). No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S0039914011007636-main...
Single drop micro-extraction with O,O-diethyl dithiophosphate for the determina...
Maltez, Heloísa França; Borges, Daniel L. G.; Carasek, Eduardo; Welz, Bernhard; Curtius, Adilson José; Maltez, Heloísa França; Borges, Daniel L. G.Acesso restrito: Texto completo. p. 800-805.; Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-07-13T15:15:46Z No. of bitstreams: 1 __ac.els-cdn.com_S003991...3ac309156ed4875365388d5e3d746.pdf: 120165 bytes, checksum: 29eaccc83659dd35438bff9c5c46b82a (MD5); Made available in DSpace on 2012-07-13T15:15:46Z (GMT). No. of bitstreams: 1 __ac.els-cdn.com_S003991...3ac309156ed4875365388d5e3d746.pdf: ...