Showing papers in "Analytica Chimica Acta in 2008"

TL;DR: This article reviews the recent progress in optical biosensors that use the label-free detection protocol, in which biomolecules are unlabeled or unmodified, and are detected in their natural forms, and focuses on the optical biosENSors that utilize the refractive index change as the sensing transduction signal.

TL;DR: The review covers main applications of conducting polymers in chemical sensors and biosensors, such as pH sensitivity, sensitivity to inorganic ions and organic molecules as well as sensitivity to gases, and induced receptor properties.

TL;DR: The potential applications of biomonitoring are proposed to mainly include evaluation of actual aquatic metal pollution, bioremediation, toxicology prediction and researches on toxicological mechanism.

TL;DR: Several of the most commonly used methods for in vitro determination of antioxidant capacity are reviewed and the advantages and shortcomings of each method are highlighted.

TL;DR: This review focuses on the application of ILs in electroanalytical sensors, which have been found to have good biocompatibility with enzymes, proteins and even living cells.

TL;DR: This review/tutorial summarizes current literature on reported contaminants and introduces a number of novel interferences that have been observed and identified in laboratories over the past decade, including both compounds of proteinaceous and non-proteinaceous nature.

TL;DR: This review covers recent advances in the development of new designs of electrochemical sensors and biosensors that make use of electrode surfaces modification with carbon nanotubes.

TL;DR: This review describes the application of MIPs to the determination of environmental pollutants in these different analytical approaches with a special emphasis on their potential as selective SPE sorbent for the selective extraction of target analytes from complex matrices.

TL;DR: Important applications of LPME are reviewed with special focus on bioanalytical and environmental chemistry, and a new possible direction is covered namely electromembrane extraction, where analytes are extracted through the SLM and into the acceptor phase by the application of electrical potentials.

TL;DR: These methods are critically compared for the determination of long-lived radionuclides important for radiation protection, decommissioning of nuclear facilities, repository of nuclear waste, tracer application in the environmental and biological researches.

TL;DR: This review is mainly focused on recent advanced developments in the design, synthesis, characterisation, properties and application of sol-gel in preparation of coatings for the SPME fibers.

TL;DR: The ecotoxicological assessment, by bioassays, of the environmental risks and the luminescent approaches are reported and comparison to other bioindicators and bioassay has been made.

TL;DR: The use of electrodeposition to modify SWNTs in order to facilitate applications in areas related to catalysis and sensing is presented in this manuscript.

TL;DR: In this review, a summary of the proposed SPME calibration methods was summarized and the characteristics of these methods were discussed.

TL;DR: A review of key aspects of resonance Raman spectroscopy (RRS) such as enhanced sensitivity and selectivity are briefly discussed in comparison with normal RS, and the analytical potential is outlined.

TL;DR: A novel method, dispersive liquid-liquid microextraction (DLLME) coupled with high-performance liquid chromatography-variable wavelength detector (HPLC-VWD), has been developed for the determination of three phthalate esters in water samples using lake water, tap water and bottled mineral water samples.

TL;DR: The ChOx/NanoZnO-CHIT/ITO bioelectrode exhibits linearity from 5 to 300 mg dl(-1) of cholesterol with detection limit, sensitivity and value as well as the value of Michaelis-Menten constant (K(m)) can be used to estimate cholesterol in serum samples.

TL;DR: Focusing on the most recent activity of worldwide researchers, the aim of the present review is to give the readers a critical overview of some important aspects that contribute in creating successful genosensing devices.

TL;DR: The proposed electroanalytical method using MWCNT-BPPGE is the most sensitive method for determination of paracetamol with lowest limit of detection to date and has also advantages such as easy handling, resistance against surface fouling, and low cost.

TL;DR: A sensitive method, using a unique on-line solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry system with peak focusing feature, to measure in human milk the concentrations of five parabens, triclosan, and six other environmental phenols, which appears to be the most prevalent in milk.

TL;DR: Theoretical aspects of C(4)D in both the capillary and microchip electrophoresis format have been comprehensively investigated and the method can be considered a mature detection technique.

TL;DR: The emerging microfludic immunosensor technology may be a promising prospect that can propel the improvement of clinical and medical diagnosis.

TL;DR: CIAME is a simple and rapid method for extraction and preconcentration of metal ions from water samples and can be applied for the sample solutions containing high concentration of salt and water miscible organic solvents and is much safer in comparison with the organic solvent extraction.

TL;DR: Both spot and passive sampling demonstrated that most of the target chemicals were frequently detected in sewage effluent and river waters, and that the daily changes in the pollutant concentrations were greater for pharmaceuticals than for EDCs.

TL;DR: To the authors' knowledge, this is the first HPLC-MS/MS method to determine TFA in water at sub-ng L(-1) concentrations, and is selective, simple, and robust, capable of measuring 29 PFAs in a single analysis.

TL;DR: This developed method produced relatively higher recoveries of the acid herbicides with a smaller range of variation and less susceptibility to matrix effects, than the original QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method.

TL;DR: Gold nanoparticles were deposited electrolessly on multiwalled carbon nanotubes (CNTs) via in situ reduction of HAuCl(4) by NaBH(4).

TL;DR: A high-performance liquid chromatography (HPLC) method was developed for the simultaneous determination of various classes phytohormones, including indole-3-acetic acid (IAA), indole -3-butyric acid (IBA), abscisic acid (ABA), gibberellic Acid (GA), zeatin (Z), N(6)-benzyladenine (BA) and 2,4-dichlorophenoxy

TL;DR: The reliability of prepared fiber to extraction of atrazine and other analogues in real samples has been investigated and proved by implementation of SPME in spiked samples such as tap water, onion and rice.

TL;DR: This review focuses on the technological advances in CE-ESI-MS as they relate to the key interface features for both sheath-flow and sheathless systems: delivery of the sheath liquid, shaping of the emitter tip, formation of electrical contact, and practicality in terms of ease of use and lifetime.