Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Sergiane Souza Caldas"'
Autor:
Luiz Fernando Dias Martini, Sergiane Souza Caldas, Catia Marian Bolzan, Angela Da Cas Bundt, Ednei Gilberto Primel, Luis Antonio de Avila
Publikováno v:
Ciência Rural, Vol 42, Iss 10, Pp 1715-1721 (2012)
A produção agrícola geralmente está associada ao uso de agrotóxicos. Suas características físico-químicas, condições do solo e do ambiente determinam seu destino, assim como o seu potencial de contaminação dos mananciais hídricos. Com o
Externí odkaz:
https://doaj.org/article/69c645e50f64495ab59fff95bfe77257
Autor:
Sergiane Souza Caldas, Fábio Ferreira Gonçalves, Ednei Gilberto Primel, Osmar Damian Prestes, Manoel Leonardo Martins, Renato Zanella
Publikováno v:
Química Nova, Vol 34, Iss 9, Pp 1604-1617 (2011)
The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits. The Solid Phase Ex
Externí odkaz:
https://doaj.org/article/d14edfa64c1145ca8744371adbdb2a64
Autor:
Sherol Acosta Rodrigues, Sergiane Souza Caldas, Eliana Badiale Furlong, Ednei Gilberto Primel, Renato Zanella
Publikováno v:
Química Nova, Vol 34, Iss 5, Pp 780-786 (2011)
An evaluation of the pesticides extraction from onion using a modern sample preparation method (QuEChERS) and determination by liquid chromatography tandem mass spectrometry was carried out. All the calibration curves showed r>0.99. The recoveries ra
Externí odkaz:
https://doaj.org/article/ee369e71468e4b3db3cd3a54f3dd8b02
Autor:
Diecson Ruy Orsolin da Silva, Luis Antonio de Avila, Dirceu Agostinetto, Angela Da Cas Bundt, Ednei Gilberto Primel, Sergiane Souza Caldas
Publikováno v:
Química Nova, Vol 34, Iss 5, Pp 748-752 (2011)
The objective this study was to monitor pesticide residues in groundwater at three different times and in seven regions producing rice in southern Brazil, in the 2007/08 season. Imazethapyr and fipronil were found in all regions studied. All groundwa
Externí odkaz:
https://doaj.org/article/8e0c2674af0e4806a3cb55c67783e753
Autor:
Maristela Barnes Rodrigues Cerqueira, Adriana Neves Dias, Sergiane Souza Caldas, Fabrício Butierres Santana, Marcelo Gonçalves Montes D'Oca, Ednei Gilberto Primel
Publikováno v:
Química Nova, Vol 34, Iss 1, Pp 156-159 (2011)
This work deals with the method validation for the determination of acetic, propionic and butyric acids (VFAs) in wastewaters from anaerobic reactors by HPLC-DAD. Separation was performed using a C18 column and the mobile phase composition were water
Externí odkaz:
https://doaj.org/article/322fbb2ac2414017a5a13f33d9e55008
Autor:
Loraine André Isoldi, Sérgio Renato Noguez Piedras, Juliana Guerra Vieira, Sergiane Souza Caldas
Publikováno v:
Vetor, Vol 16, Iss 1 (2007)
A indústria de óleos vegetais da cidade de Pelotas foi pioneira e é a maior indústria de arroz do Brasil, tendo capacidade de processamento de 60.000 t/ano de farelo de arroz. A geração de efluentes líquidos industriais é um problema bastant
Externí odkaz:
https://doaj.org/article/a387961db08a4af2a3656bc82067a3e9
Publikováno v:
Microchemical Journal. 148:102-107
A new green method using water as the extraction solvent and golden mussel shell as the solid support in vortex-assisted matrix solid phase dispersion (VA-MSPD) has been developed for the determination of acetylisalicylic acid (ASA) and salicylic aci
Autor:
Lucas Degang, Larine Kupski, Ednei Gilberto Primel, Sergiane Souza Caldas, Liziane Cardoso Marube, Gabriela M. Salcedo
Publikováno v:
Microchemical Journal. 146:722-728
This work proposes for the first time a dispersive liquid-liquid microextraction (DLLME) method for the simultaneous extraction of 15 phenols (including isomers) from refinery wastewater with identification by liquid chromatography coupled to photodi
Autor:
Adalto Bianchini, Wagner Ezequiel Risso, Sergiane Souza Caldas, Maria Eduarda Tesser, Cláudia B.R. Martinez, Carlos Eduardo Delfino Vieira, Patrícia Gomes Costa, Ana Laura Venquiaruti Escarrone, Ednei Gilberto Primel
Publikováno v:
Science of The Total Environment. 666:508-524
Aquatic contamination in agricultural areas is a global problem, characterized by a complex mixture of organic and inorganic pollutants whose effects on biota are unpredictable and poorly investigated. In this context, in the present study, the Neotr
Autor:
Larine Kupski, Sergiane Souza Caldas, Ednei Gilberto Primel, Ronan Adler Tavella, Augusto A. Vieira
Publikováno v:
Microchemical Journal. 143:92-98
This paper reports the development and optimization of a method based on vortex assisted matrix solid-phase extraction (VA-MSPD) and gas chromatography with electron capture detection for the evaluation of booster biocides in fish tissues. Some param