Improvement of Advanced Sample Preparation Systems for the Determination of Trace Ni in Seawater by Electro-Membranes

Autor: Juan J. Pinto, Carolina Mendiguchía, José A. López-López, Mabel Martín-Barata, Macarena Silva, Carlos Moreno

Publikováno v: Membranes, Vol 13, Iss 2, p 152 (2023)

Due to its important environmental role, the analysis of trace metals in natural waters is attracting increasing attention; consequently, faster and more accurate analytical methods are now needed to reach even lower limits of detection. In this work

Externí odkaz: https://doaj.org/article/85412c8183ed428ba14e95ec3167d807

Selective solvent bar micro-extraction as a single-step approach for the measurement of Cu fractions in seawater

Autor: Juan J. Pinto, Carolina Mendiguchía, Rafael Jesús González-Álvarez, José A. López-López, Carlos Moreno

Publikováno v: Analytical and Bioanalytical Chemistry. 412:1863-1870

Hollow fibre-supported liquid membrane was used for Cu fractionation in marine waters, using di-2-pyridylketone benzoylhydrazone (dPKBH) as a carrier due to its capacity to transport dissolved inorganic Cu at natural seawater pH. Optimized conditions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd2b0fe6baca1c49e8bc122f4cdc2a0d
https://doi.org/10.1007/s00216-020-02433-x

A Critical Study of the Effect of Polymeric Fibers on the Performance of Supported Liquid Membranes in Sample Microextraction for Metals Analysis

Autor: Carlos Moreno, Rafael Jesús González-Álvarez, José A. López-López, Juan J. Pinto

Publikováno v: Membranes 2020, 10(10), 275
RODIN: Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz
Universidad de Cádiz
RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz
instname
Membranes
Membranes, Vol 10, Iss 275, p 275 (2020)
Volume 10
Issue 10

Popularity of hollow fiber-supported liquid membranes (HF-SLM) for liquid-phase microextraction (HF-LPME) has increased in the last decades. In particular, HF-SLM are applied for sample treatment in the determination and speciation of metals. Up to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61f90cbfa6e73fa859651d1a95d44dca
http://hdl.handle.net/10498/24080

Solid sampling graphite furnace atomic absorption spectrometry for the direct analysis of microextraction solvent bars used for metal ultra-trace pre-concentration

Autor: Juan J. Pinto, Carlos Moreno, Rafael Jesús González-Álvarez, Dolores Bellido-Milla

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 135:1-5

The potential applicability of the continuum source solid sampling graphite furnace atomic absorption spectroscopy (CS SS-GF AAS) technique has been studied to carry out the direct analysis of microextraction solvent bars used for metal ultra-trace p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b3290d24dab0c4cfdd044e60e0da447
https://doi.org/10.1016/j.sab.2017.06.013

Miniaturized and direct spectrophotometric multi-sample analysis of trace metals in natural waters

Autor: José A. López-López, Gemma Albendín, Juan J. Pinto

Publikováno v: Analytical Biochemistry. 497:18-23

Trends in the analysis of trace metals in natural waters are mainly based on the development of sample treatment methods to isolate and pre-concentrate the metal from the matrix in a simpler extract for further instrumental analysis. However, direct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87b8dcf51d0c8973fb9c354407c7ec7c
https://doi.org/10.1016/j.ab.2015.11.025