Complexing porous polymer monoliths for online solid-phase extraction of metals in sequential injection analysis with electrochemical detection

Talanta
Luiz F Ribeiro, Jorge Cesar Masini

Abstract

A monolithic column affording complexing groups was synthesized for automated solid-phase extraction of potentially toxic metal ions in a low-pressure sequential injection analyzer. Poly(glycidyl methacrylate-co-ethylene dimethacrylate) monoliths were synthesized by free-radical polymerization in the coffins of fused silica-lined stainless-steel tubes (2.10 mm i.d. × 5-6 cm length). High permeability (4.33 × 10-13 m2) was achieved for monoliths polymerized for 24 h at 60 °C from a mixture of 30 wt% glycidyl methacrylate, 10 wt% ethylene glycol dimethacrylate, 35 wt% n-propanol, 20 wt% 1,4 butanediol and 5 wt% water. Azobisisobutyronitrile (1 wt% with respect to the monomers) initiated the free-radical polymerization. These generic columns were modified with iminodiacetate to create complexing functionalities on the polymer surface, being further used for online solid-phase extraction of Cu2+, Pb2+ and Cd2+ from natural, tap and drinking waters prior to their determination by stripping chronopotentiometry. The high permeability of the column allowed the loading, washing, eluting and reconditioning steps to be made at flow rate of 10 µL s-1. The limits of detection and quantification achieved by processing 1500 µL of sample were ...Continue Reading

References

May 11, 2006·Analytical and Bioanalytical Chemistry·Tomonari UmemuraHiroki Haraguchi
Jun 24, 2006·Analytical Chemistry·Frantisek Svec, Christian G Huber
Jul 21, 2007·Journal of Chromatography. a·Georges Guiochon
Oct 31, 2008·Talanta·Claudete Fernandes PereiraJurandir Rodrigues Souzade
Oct 20, 2009·Talanta·Katarzyna Bielicka-Daszkiewicz, Adam Voelkel
Mar 12, 2011·Journal of Separation Science·Akira NameraShota Miyazaki
May 1, 2012·Journal of Chromatography. a·Yongqin LvFrantisek Svec
Feb 25, 2014·Analytica Chimica Acta·Jialiang PanGongke Li
Apr 22, 2014·Journal of Chromatography. a·Hongxia WangTianwei Tan
Jan 17, 2016·Analytica Chimica Acta·M Fernández-AmadoD Prada-Rodríguez
Mar 20, 2016·Talanta·Adnívia Santos Costa MonteiroJosé Paulo Pinheiro
May 27, 2016·Journal of Separation Science·Yongqin LvFrantisek Svec
Sep 28, 2016·Journal of Separation Science·Zuzana Zajickova
Mar 30, 2017·Analytica Chimica Acta·Jorge C Masini, Frantisek Svec

❮ Previous
Next ❯

Citations

Oct 6, 2018·Journal of Separation Science·Edvaldo Vasconcelos Soares MacielFernando Mauro Lanças
Sep 14, 2019·Talanta·Fábio R P Rocha, Elias A G Zagatto
Jun 16, 2021·Journal of Separation Science·Renan VitekJorge C Masini

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.