Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Jessica Avivar"'
Publikováno v:
Talanta. 166:412-419
The development of automatic analyzers based on flow techniques involves the use and continuous innovation of fluidic devices. New trends tend toward miniaturization of sophisticated fluidic platforms requiring continuous advances in this field. The
Autor:
Tânia Moniz, Maria Rangel, Alba González, Raquel B. R. Mesquita, Jessica Avivar, António O. S. S. Rangel, Víctor Cerdà
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The determination of iron and copper exploiting a microsequential injection lab-on-valve system with online spectrophotometric detection is described. A new, environmental friendly 3-hydroxy-4-pyridinone chelator, functionalized with a polyethylene g
Publikováno v:
International Journal of Environmental Analytical Chemistry. 96:653-666
An automated spectrophotometric system is proposed for the determination of bismuth in well water samples, using multi-syringe flow injection analysis (MSFIA) and exploiting a liquid waveguide capillary cell (LWCC). This method is based on the colori
Publikováno v:
TrAC Trends in Analytical Chemistry. 76:145-152
Radionuclides monitoring is an issue of increasing concern due to their widespread use last years. Thus, efficient methods for radionuclides determination are required. Radionuclides extraction and preconcentration is usually required prior detection
Publikováno v:
Talanta. 148:589-595
An environmental friendly and fully automated method using in-syringe magnetic stirring assisted dispersive liquid-liquid microextraction coupled with high-performance liquid chromatography has been developed for the determination of UV filters in en
Publikováno v:
Journal of Chromatography A. 1413:1-8
A new procedure for the extraction, preconcentration and simultaneous determination of the estrogens most used in contraception pharmaceuticals (estrone, 17β-estradiol, estriol, and 17α-ethynylestradiol), cataloged as Contaminants of Emergent Conce
Publikováno v:
Analytical and Bioanalytical Chemistry. 407:5571-5578
A new approach exploiting in-syringe dispersive liquid-liquid microextraction (DLLME) for 99 Tc extraction and preconcentration from biological samples, i.e., urine and saliva, and liquid residues from treated patients is presented. 99 Tc is a beta e
Publikováno v:
TrAC Trends in Analytical Chemistry. 67:26-33
Flow techniques (FTs) are non-separative tools and high-performance separation techniques that require sample pretreatment. On-line combinations of flow sample-pretreatment units and discrete sample-introduction devices are very attractive, as they a
Publikováno v:
Talanta. 134:674-680
A fully automated in-syringe (IS) magnetic stirring assisted (MSA) liquid-liquid microextraction (LLME) method for uranium(VI) determination was developed, exploiting a long path-length liquid waveguide capillary cell (LWCC) with spectrophotometric d
Autor:
Laura Ferrer, Víctor Cerdà, Ariel García, Luz O. Leal, Silvia V. Miranda, Jessica Avivar, Rogelio Rodríguez
Publikováno v:
Talanta. 133:88-93
A new, fast, automated and inexpensive sample pre-treatment method for (99)Tc determination by inductively coupled plasma-mass spectrometry (ICP-MS) detection is presented. The miniaturized approach is based on a lab-on-valve (LOV) system, allowing a