Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Natalia Elizabeth Llamas"'
Autor:
Petr Chocholouš, Hana Sklenářová, Luana Nussbaum, Petr Solich, Natalia Elizabeth Llamas, Carolina C. Acebal, Carolina V. Di Anibal, María Susana Rodríguez
Publikováno v:
J Food Sci Technol
Para Red (PR) and Sudan dyes have been illegally used as colorants to adulterate certain foods by enhancing their red/orange colour. In addition, they are toxic and carcinogenic. This work presents the development of a simple flow injection chromatog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2710ba88c9466edb4538507638907ce8
https://doi.org/10.1007/s13197-021-05299-8
https://doi.org/10.1007/s13197-021-05299-8
Autor:
Mónica B. Alvarez, Claudia E. Domini, Jorge Eduardo Marcovecchio, Natalia Elizabeth Llamas, Mariano Garrido, Silvana M. Álvarez
Publikováno v:
Journal of Soils and Sediments. 21:3692-3703
The aim of this study was to develop a new and rapid sample digestion procedure for metal extraction using ultrasonic energy together with a combination of an ionic liquid and mineral acids as extractants. A fixed mass of sediment (about 0.50 g) was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffa942872865b569a8170540dd4929f3
https://doi.org/10.1007/s11368-021-03042-6
https://doi.org/10.1007/s11368-021-03042-6
Autor:
Claudia E. Domini, Maite V. Aguinaga Martínez, Francisco David Avila Orozco, Carolina C. Acebal, Natalia Elizabeth Llamas
Publikováno v:
Microchimica Acta. 187
A solid-phase extraction method is presented for micro-extraction of three progestins (levonorgestrel, 19-norethisterone acetate and medroxyprogesterone acetate) from water samples. A mini-column was packed with 60 mg of oxidized multiwalled carbon n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc8dd6a7cce44c1526ceaddcd4384991
https://doi.org/10.1007/s00604-020-4116-z
https://doi.org/10.1007/s00604-020-4116-z
Autor:
Claudia E. Domini, Adriana G. Lista, Natalia Elizabeth Llamas, Mónica B. Alvarez, Silvana M. Álvarez
Publikováno v:
Ultrasonics Sonochemistry. 34:239-245
A new extraction method for metals from sediment samples was developed. In this procedure, the chelating agent EDTA was combined with a minimal amount of the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (Bmim[BF 4 ]), assisted by ultras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf7b5bf7ee7a829b2c2ec71ff9b94a19
https://doi.org/10.1016/j.ultsonch.2016.05.044
https://doi.org/10.1016/j.ultsonch.2016.05.044
Autor:
Maite V. Aguinaga, Claudia E. Domini, Mariano Garrido, Carolina C. Acebal, Natalia A. Gomez, Natalia Elizabeth Llamas
Publikováno v:
Advances in Microwave Chemistry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::021ea66d17f039d6c9dc474a4449052a
https://doi.org/10.1201/9781351240499-3
https://doi.org/10.1201/9781351240499-3
Autor:
Gastón Darío Pierini, M.S. Di Nezio, Sherlan G. Lemos, María Eugenia Centurión, Natalia Elizabeth Llamas, Wallace D. Fragoso
Publikováno v:
Microchemical Journal. 106:347-350
A simple and rapid method to determine acesulfame-K and aspartame simultaneously in power sweeteners, without pretreatment was proposed. This method employs linear sweep voltammetry assisted with multivariate calibration tools, in order to resolve th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd2db58f81121c88e96b5bafab62a86e
https://doi.org/10.1016/j.microc.2012.09.006
https://doi.org/10.1016/j.microc.2012.09.006
Autor:
Beatriz Susana Fernández Band, Petr Solich, Natalia Elizabeth Llamas, Marcos Grunhut, Carolina C. Acebal, Matías Insausti, Lucie Zelená, Hana Sklenářová
Trace amounts of two sulfonylurea herbicides widely used for crops protection, metsulfuron methyl (MSM) and chlorsulfuron (CSF) were simultaneously determined taking into account the different kinetic photodegradation behavior of their photoproducts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d03f21c80ba311b9ade2cdde90eaf5c
https://www.sciencedirect.com/science/article/pii/S0026265X16300923
https://www.sciencedirect.com/science/article/pii/S0026265X16300923
Autor:
Mariano Garrido, Beatriz Susana Fernández Band, Maria Susana Di Nezio, Natalia Elizabeth Llamas
Publikováno v:
Analytica Chimica Acta. 655:38-42
A direct spectrophotometric method for the determination of three artificial colors - amaranth, sunset yellow FCF and tartrazine - in beverages samples is proposed. The spectra were recorded between 359 and 600 nm. The spectra of the samples (just fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5acee5845cf01990ecc9ecb1d543cc38
https://doi.org/10.1016/j.aca.2009.10.001
https://doi.org/10.1016/j.aca.2009.10.001
Autor:
Maria Susana Di Nezio, Miriam E. Palomeque, Natalia Elizabeth Llamas, Beatriz Susana Fernández Band
Publikováno v:
Food Analytical Methods. 1:43-48
A simple and rapid analytical procedure for determination of saccharin (SAC) and acesulfame-K (AC-K) based on UV-vis measurements and partial least squares (PLS) was proposed. Thus, an experimental design at levels 2 and 15 mg l−1 for SAC and 2 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d09b497ede8601747266b0a8a9ea6b3
https://doi.org/10.1007/s12161-007-9006-z
https://doi.org/10.1007/s12161-007-9006-z
Autor:
Miriam E. Palomeque, Beatriz Susana Fernández Band, Natalia Elizabeth Llamas, Maria Susana Di Nezio
Publikováno v:
Analytica Chimica Acta. 539:301-304
A flow injection turbidimetric method for determination of cyclamate in low calorie soft drinks and sweeteners without pre-treatment is proposed. It was based on the oxidation of the sulphamic group of cyclamate, to sulphate by addition of nitrite. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d287ab4e6bb19cf7f7db5f35a87ec83
https://doi.org/10.1016/j.aca.2005.03.044
https://doi.org/10.1016/j.aca.2005.03.044