Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Magdalena Alesso"'
Autor:
Verónica S. Wills, Liliana Patricia Fernandez, María Carolina Talio, Magdalena Alesso, Mariano Acosta
Publikováno v:
Talanta. 174:221-227
In this work, a new procedure was developed for separation and preconcentration of nickel(II) and cadmium(II) in several and varied tobacco samples. Tobacco samples were selected considering the main products consumed by segments of the population, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::110c76dd8dc3731fb08dbb29af397c6d
https://doi.org/10.1016/j.talanta.2017.06.015
https://doi.org/10.1016/j.talanta.2017.06.015
Publikováno v:
Talanta. 160:431-436
A new simple methodology is proposed for chlorsufuron (CS) traces quantification based upon enhancement of rhodamine B (RhB) fluorescent signal. Experimental variables that influence fluorimetric sensitivity have been studied and optimized. The zerot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20c3c92e9d19f855f20303f64f5374d7
https://doi.org/10.1016/j.talanta.2016.07.053
https://doi.org/10.1016/j.talanta.2016.07.053
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
A new environmental friendly methodology for metsulfuron-methyl quantification based on the fluorescent signal enhancement of rhodamine B dye has been developed. A cationic surfactant (cetyltrimethylammonium bromide, CTAB) and an anionic one (sodium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2796fad7a9c5c3c3338c40d91c9648f8
https://www.sciencedirect.com/science/article/pii/S0026265X17313024
https://www.sciencedirect.com/science/article/pii/S0026265X17313024
A new method for pre-concentration/separation and determination of 2,4-dichlorophenoxyacetic acid (2,4-D) by solid-surface fluorescence (SSF) is proposed. The herbicide was complexed with Rhodamine B at pH 7.0 in the presence of phosphate buffer and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de2de6c834f9af671ec885c852b0cad9
http://linkinghub.elsevier.com/retrieve/pii/S0026265X17305908
http://linkinghub.elsevier.com/retrieve/pii/S0026265X17305908
Autor:
Magdalena Alesso, Mariano Acosta, María Carolina Talio, Liliana Patricia Fernandez, Maria Gimena Acosta
Publikováno v:
Talanta. 127:244-249
In this work, a new procedure was developed for the separation and preconcentration of lead(II) and cobalt(II) in several water and foods samples. Complexes of metal ions with 8-hydroxyquinolein (8-HQ) were formed in aqueous solution. The proposed me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::582ddfca4f110cefd57f54fd4b9dc893
https://doi.org/10.1016/j.talanta.2014.04.020
https://doi.org/10.1016/j.talanta.2014.04.020
Autor:
Liliana Patricia Fernandez, Marta Olga Luconi, Maria Gimena Acosta, Magdalena Alesso, María Carolina Talio
Publikováno v:
Food Additives & Contaminants: Part A. 31:1367-1374
A new method for the determination of caffeine, a non-fluorescent analyte, based on the enhancement of the fluorescence of Rhodamine B dye on a membrane filter modified with multi-walled carbon nanotubes is proposed. The method comprises the preconce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c92f4b596d61c98650bebed4843da50c
https://doi.org/10.1080/19440049.2014.928831
https://doi.org/10.1080/19440049.2014.928831
A new methodology for caffeine determination was developed based on the quenching effect on fluorescent emission of the molecule of Bovine Serum Albumin at λem = 338 nm (λex = 280). A flow injection disposition was designed improving significantly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca6043d319b7635d7803658e5e9b0552
https://www.sciencedirect.com/science/article/pii/S0026265X16300017
https://www.sciencedirect.com/science/article/pii/S0026265X16300017
Autor:
María Carolina Talio, Gabriel Bondioli, Magdalena Alesso, Marta Olga Luconi, Liliana Patricia Fernandez
Publikováno v:
Food Chemistry. 134:513-517
Dye Rhodamine B (RhB) has been widely used in textile industry and foodstuffs but due to its proved carcinogenicity and toxicity on human, many countries have forbidden its use in foods. A new methodology is proposed for Rhodamine B (RhB) fluorimetri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::678ea5b512f2276b270c4b3bf4764680
https://doi.org/10.1016/j.foodchem.2012.02.110
https://doi.org/10.1016/j.foodchem.2012.02.110
Autor:
María Carolina Talio, Liliana Patricia Fernandez, Mariano Acosta, Maria Gimena Acosta, Marta Olga Luconi, Magdalena Alesso
Publikováno v:
Clinica chimica acta; international journal of clinical chemistry. 425
Background In this work, a new methodology based upon enhancement of rhodamine B fluorescent signal is proposed for the quantification of caffeine traces. Methods Membrane filters treated with multiple wall carbon nanotubes were employed as solid sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a223ff5de03268d573a966bf65275eb
https://pubmed.ncbi.nlm.nih.gov/23872170
https://pubmed.ncbi.nlm.nih.gov/23872170
Autor:
Mariano Acosta, María Carolina Talio, Magdalena Alesso, Liliana Patricia Fernandez, Roberto A. Olsina
A new methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55f5b5c698a0657612bc039aa2b79a5
https://www.sciencedirect.com/science/article/pii/S003991401201082X
https://www.sciencedirect.com/science/article/pii/S003991401201082X