Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Rejane M. Frizzarin"'
Autor:
Gemma Turnes Palomino, Carlos Palomino Cabello, Víctor Cerdà, Fernando Maya, Rejane M. Frizzarin, José Manuel Estela
Publikováno v:
TrAC Trends in Analytical Chemistry. 90:142-152
Magnetic solid-phase extraction (MSPE) is a useful sample preparation technique, enabling the dispersion of solid sorbents in liquid sample matrices followed by the magnetic retrieval of the sorbent. MSPE can be implemented using any kind of magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff0012aa43c2eb4001b73afeed86a1ed
https://doi.org/10.1016/j.trac.2017.03.004
https://doi.org/10.1016/j.trac.2017.03.004
Publikováno v:
Food Chemistry. 212:759-767
A novel fully-automated magnetic stirring-assisted lab-in-syringe analytical procedure has been developed for the fast and efficient dispersive liquid-liquid microextraction (DLLME) of caffeine in coffee beverages. The procedure is based on the micro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df534748c566ff341a61e997496a812d
https://doi.org/10.1016/j.foodchem.2016.06.032
https://doi.org/10.1016/j.foodchem.2016.06.032
Publikováno v:
Journal of Chromatography A. 1453:1-9
Herein we report the use of cobalt porous coordination polymers (PCP) as intermediates to prepare advanced extraction media based on layered double hydroxides (LDH) supported on melamine polymer foam. The obtained dissolvable Ni-Co LDH composite spon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f92f29bfefffc596e6296b8ac36dae93
https://doi.org/10.1016/j.chroma.2016.05.023
https://doi.org/10.1016/j.chroma.2016.05.023
Autor:
Rejane M. Frizzarin, Claudineia R. Silva, Camelia Henríquez, Víctor Cerdà, Elias A.G. Zagatto
Publikováno v:
Talanta. 148:596-601
Considering the beneficial aspects arising from the implementation of pulsed flows in flow analysis, and the relevance of in-line gas diffusion as an analyte separation/concentration step, influence of flow pattern in flow systems with in-line gas di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c0db43c0c8a5c704dc3f4535fb72b6e
https://doi.org/10.1016/j.talanta.2015.09.064
https://doi.org/10.1016/j.talanta.2015.09.064
Autor:
Enrique Aguado, Daniel Moreno, José Manuel Estela, Lindomar A. Portugal, Víctor Cerdà, Fábio R.P. Rocha, Rejane M. Frizzarin
Publikováno v:
Talanta. 144:1155-1162
A miniaturized analyzer encompassing a poly(methyl methacrylate) chip with integrated spectrofluorimetric detection and solutions propelling by a multi-syringe module is proposed. Iodide was determined through its catalytic effect on the reaction bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11faa3b495ffdfe648108726fbc99074
https://doi.org/10.1016/j.talanta.2015.07.069
https://doi.org/10.1016/j.talanta.2015.07.069
Autor:
Rejane M. Frizzarin, Fábio R.P. Rocha
Publikováno v:
Analytica Chimica Acta. 820:69-75
Novel strategies are proposed to circumvent the main drawbacks of flow-based cloud point extraction (CPE). The surfactant-rich phase (SRP) was directly retained into the optical path of the spectrophotometric cell, thus avoiding its dilution previous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0468defc88be33d96bbc89f26306dc90
https://doi.org/10.1016/j.aca.2014.02.035
https://doi.org/10.1016/j.aca.2014.02.035
Autor:
Rejane M. Frizzarin, Fábio R.P. Rocha
Publikováno v:
Analytica Chimica Acta. 758:108-113
An analytical procedure with improved sensitivity was developed for cyanide determination in natural waters, exploiting the reaction with the complex of Cu(I) with 2,2′-biquinoline 4,4′-dicarboxylic acid (BCA). The flow system was based on the mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e816380aaab4bbf343d4dc520718898
https://doi.org/10.1016/j.aca.2012.10.059
https://doi.org/10.1016/j.aca.2012.10.059
Autor:
Maria del Mar Bauzà, Rejane M. Frizzarin, Lindomar A. Portugal, José Manuel Estela, Fernando Maya, Víctor Cerdà, Gemma Turnes Palomino, Carlos Palomino Cabello
Publikováno v:
Analytical chemistry. 88(14)
We present the first application of submicrometric magnetic nanoporous carbons (μMNPCs) as sorbents for automated solid-phase extraction (SPE). Small zeolitic imidazolate framework-67 crystals are obtained at room temperature and directly carbonized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e358bf7b70288f3b1d5b035cec68672
https://pubmed.ncbi.nlm.nih.gov/27336802
https://pubmed.ncbi.nlm.nih.gov/27336802
Autor:
Fábio R.P. Rocha, Víctor Cerdà, Lindomar A. Portugal, Rejane M. Frizzarin, José Manuel Estela
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Most of the procedures for antimony determination require time-consuming sample preparation (e.g. liquid-liquid extraction with organic solvents), which are harmful to the environment. Because of the high antimony toxicity, a rapid, sensitive and gre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db7168ac138a4f455a0281fbd6d0a5b4
https://pubmed.ncbi.nlm.nih.gov/26653503
https://pubmed.ncbi.nlm.nih.gov/26653503
Publikováno v:
Analytical and Bioanalytical Chemistry. 385:197-202
An automatic reagentless photometric procedure for the determination of ethanol in red wine is described. The procedure was based on a falling drop system that was implemented by employing a flow injection analysis manifold. The detection system comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2636fe156a3f5291be30f2934ba346c
https://doi.org/10.1007/s00216-006-0377-6
https://doi.org/10.1007/s00216-006-0377-6