Showing papers in "Analytica Chimica Acta in 2018"

TL;DR: Last decade's advances and modern aspects of near infrared spectroscopy are critically examined and reviewed in order to understand why the technique has found intensive application in the most diverse and modern areas of analytical importance during the last ten years.

TL;DR: This review encompasses the mechanisms of electrochemical glucose detection and recent advances in non-enzymatic glucose sensors based on a variety of materials ranging from platinum, gold, metal alloys/adatom, non-precious transition metal/metal oxides to glucose-specific organic materials to demonstrate the possibility of direct detection in whole blood or interstitial fluids.

TL;DR: The numerous issues associated with the analysis of microplastics, and to a less extent of nanoplastics, in environmental samples, from their sampling and sample handling to their identification and quantification are discussed.

TL;DR: The present review for the first time introduces the state of the art in the progress of the IFE-based fluorescent sensing systems, including sensing strategy, essential conditions, materials option, and their applications for the detection of various target analytes, e.g., ionic species, small molecules, and macromolecules.

TL;DR: This review gives a general overview on the fabrication techniques reported to date, revealing and discussing their weak points as well as the newest approaches in order to overtake current mass production limitations and therefore commercialisation.

TL;DR: This review focuses on the synthesis and chemical sensing characterization of metal oxide heterostructures reported since 2012, showing strong interactions between closely packed interfaces, showing superior performances compared to single structures.

TL;DR: This current review article focuses on recent contributions to on-site forensic investigations and presents and critically discussed about (bio)chemical trace analysis and studies performed outside the controlled laboratory environment to rapidly help in crime scene inquiries or forensic intelligence purposes.

TL;DR: Proposed 3D-printed sensor, which presented comparable electroanalytical performance with other carbon-based electrodes, demonstrated for the amperometric detection of tert-butylhydroquinone, dipyrone, dopamine and diclofenac by flow-injection analysis (FIA) and batch-injected analysis (BIA).

TL;DR: This review presents an overview of knowledge regarding sustainability of NADES-based extraction procedures, focused on reported literature within the timeframe spanning from 2011 up to date, and includes a critical analysis to clarify whether the use of NADes as extraction media is enough for greening an analytical methodology.

TL;DR: The purpose of this review is to bring the knowledge of the human fecal metabolome, and the methods to characterize it, to the same level as most other human biofluid metabolomes.

TL;DR: Experimental results verified that this novel, sensitive and label-free aptasensor possessed high stability, selectivity and sensitivity towards DA detection, over potential interferents.

TL;DR: The developed system demonstrates great potential for the detection of TCs in environmental and biological samples and was successfully applied to the determination of tetracycline in river water and milk samples.

TL;DR: The results demonstrate that the AC is very effective in the enhancement of the electrocatalytic properties of sensor and the recommended sensor offer the various advantageous such as facile preparation, fast response time, high selectivity and sensitivity.

TL;DR: This assay for the detection of alkaline phosphatase (ALP) activity was developed by employing copper-based metal-organic frameworks (Cu-MOFs) as peroxidase mimic and pyrophosphate (PPi) as recognition element, which not only allows highly sensitive analysis of ALP activity with a detection limit of 0.19 U/L, but also exhibits a good sensing performance in serum samples.

TL;DR: The findings suggest that QB-ICA using SA-biotin system as the signal output of control line is an excellent point-of-care platform for the rapid screening of mycotoxins.

TL;DR: This method is simple, high sensitive, and excellent selectivity, which provided a new insight on the potential applications of NBS-CDs to develop the biosensor in clinical diagnosis and other biologically related areas.

TL;DR: The electrochemical impedance spectroscopy (EIS) results confirmed that the modified CPE by calcined NiO at 200 °C has lower charge transfer resistance.

TL;DR: The reduced graphene oxide-based FET-type aptasensor showed bendable flexibility on the PMMA substrate and exhibited high sensitivity, selectivity, stability and reproducibility which offers great promise as a high performance and flexible Fet-typeaptasensor to detect CA125 and other cancer biomarkers in clinical samples and biological fluids.

TL;DR: A method based on solid phase extraction using MICOFs coupled to high performance liquid chromatography was established for the determination of cyano pyrethroids in plant samples and exhibited high selectivity toward four structurally similar cyano fireworks.

TL;DR: The statTarget is a streamlined tool with an easy-to-use graphical user interface and an integrated suite of algorithms specifically developed for the evaluation of data quality and removal of unwanted variations for quantitative mass spectrometry-based omics data that allows user-friendly the improvement of the data precision.

TL;DR: The confocal fluorescent microscopic images of SMMC7721 cells were performed successfully, demonstrating that N-CDs possess exceptional cell membrane permeability and can implement as biosensing platform to monitor pH fluctuations in living cells.

TL;DR: A methodological approach to LOD estimation through linearized calibration models is proposed and is applied to the detection of low concentrations of carbon monoxide using MOX gas sensors in a scenario where the main source of error is the presence of uncontrolled levels of humidity.

TL;DR: The proposed SPME-HPLC method showed high extraction efficiency, good linearity, and good reproducibility for determination of three NSAIDs in aqueous solution and was successfully applied to detectNSAIDs in lake water and human plasma samples.

TL;DR: A highly sensitive urinary assay based on ultra-high performance liquid chromatography - tandem mass spectrometer (UHPLC-MS/MS) and 13C-labelled or deuterated internal standards covering the most relevant regulated and emerging mycotoxins for systematic investigation of low dose effects on human health.

TL;DR: Findings from comprehensive evaluation of untargeted metabolomics software would help guide future improvements of these widely used bioinformatics tools and enable users to properly interpret their metabolomics results.

TL;DR: A critical review of chromium speciation methods in which solid phase extraction was employed as sample pretreatment using graphene and carbon nanotubes (and their diverse oxidized, functionalized and magnetic derivatives) as sorbents as Sorbents is provided.

TL;DR: This tutorial review is a critical commentary on the combined use of two instrumental analytical techniques, namely GC-MS and PTR-MS, to elaborate on the concept of their combined use and to provide a tutorial for those considering taking such an approach.

TL;DR: This work evaluated the multi-omic capability of each lipid extraction method for plasma in an effort to provide a workflow capable of increasing analyte coverage in a single extraction, thus providing a more complete understanding of complex biological systems.

TL;DR: A sensitive ratiometric fluorescence aptasensor for the determination of ochratoxin A (OTA), a small molecular mycotoxin produced by Aspergillus and Penicillium strains, has been successfully constructed.

TL;DR: This work proposes a novel technique in which a lubricant is tethered to the surface of a 3D printed mold, which results in a smooth interface for casting polydimethylsiloxane chips, a widely-used polymer in prototyping microfluidic devices.