Comparison of analyte identification criteria and other aspects in triple quadrupole tandem mass spectrometry: Case study using UHPLC-MS/MS for regulatory analysis of veterinary drug residues in liquid and powdered eggs
Sign Up to like & getrecommendations! Published in 2021 at "Analytical and Bioanalytical Chemistry"
DOI: 10.1007/s00216-021-03380-x
Abstract: Ultrahigh-performance liquid chromatography (UHPLC) coupled with triple quadrupole tandem mass spectrometry (MS/MS) is one of the most powerful tools for the multiclass, multiresidue analysis of veterinary drugs, pesticides, mycotoxins, and other chemical contaminants in foods… read more here.
Keywords: analysis; analyte; identification criteria; drug ... See more keywords
Extended internal standard method for quantitative 1H NMR assisted by chromatography (EIC) for analyte overlapping impurity on 1H NMR spectra.
Sign Up to like & getrecommendations! Published in 2018 at "Talanta"
DOI: 10.1016/j.talanta.2018.03.003
Abstract: We devised a novel extended internal standard method of quantitative 1H NMR (qNMR) assisted by chromatography (EIC) that accurately quantifies 1H signal areas of analytes, even when the chemical shifts of the impurity and analyte… read more here.
Keywords: chromatography; eic; nmr; internal standard ... See more keywords
Comparing Strategies in the Design of Responsive Contrast Agents for Magnetic Resonance Imaging: A Case Study with Copper and Zinc.
Sign Up to like & getrecommendations! Published in 2018 at "Accounts of chemical research"
DOI: 10.1021/acs.accounts.7b00301
Abstract: Magnetic resonance imaging (MRI) has emerged over the years as one of the preferred modalities for medical diagnostic and biomedical research. It has the advantage over other imaging modalities such as positron emission tomography and… read more here.
Keywords: contrast agents; resonance imaging; contrast; design responsive ... See more keywords
What Digital Immunoassays Can Learn from Ambient Analyte Theory: A Perspective.
Sign Up to like & getrecommendations! Published in 2022 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.1c05591
Abstract: Immunoassays are important tools for clinical diagnosis as well as environmental and food analysis because they enable highly sensitive and quantitative measurements of analyte concentrations. In the 1980s, Roger Ekins suggested to improve the sensitivity… read more here.
Keywords: analyte; learn ambient; immunoassays learn; analyte theory ... See more keywords
Efficient pKa Determination in a Nonaqueous Solvent Using Chemical Shift Imaging
Sign Up to like & getrecommendations! Published in 2022 at "Analytical Chemistry"
DOI: 10.1021/acs.analchem.2c00200
Abstract: pKa is an important property of a molecule which impacts many fields, such as drug design, catalysis, reactivity, and environmental toxicity. It is often necessary to measure pKa in nonaqueous media due to the poor… read more here.
Keywords: analyte; chemical shift; pka; solvent ... See more keywords
Effect of sample storage on the quantitative determination of 29 PFAS - observation of analyte interconversions during storage.
Sign Up to like & getrecommendations! Published in 2019 at "Environmental science & technology"
DOI: 10.1021/acs.est.9b03859
Abstract: In this study, we measured the effects of sample type and storage temperature on the stability of 29 per- and polyfluorinated alkyl substances (PFAS) in water. Spiked bottled water, surface water, and two types of… read more here.
Keywords: storage; sample storage; pfas; water ... See more keywords
Enhanced Photoelectrochemical Detection of an Analyte Triggered by Its Concentration by a Singlet Oxygen-Generating Fluoro Photosensitizer.
Sign Up to like & getrecommendations! Published in 2020 at "ACS sensors"
DOI: 10.1021/acssensors.0c01609
Abstract: The use of a photocatalyst (photosensitizer) which produces singlet oxygen instead of enzymes for oxidizing analytes creates opportunities for designing cost-efficient and sensitive photoelectrochemical sensors. We report that perfluoroisopropyl-substituted zinc phthalocyanine (F64PcZn) interacts specifically with… read more here.
Keywords: singlet oxygen; photoelectrochemical detection; analyte; photosensitizer ... See more keywords
Electrically Controlled Enrichment of Analyte for Ultrasensitive SERS-Based Plasmonic Sensors
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12050844
Abstract: Recently, sensors using surface-enhanced Raman scattering (SERS) detectors combined with superhydrophobic/superhydrophilic analyte concentration systems showed the ability to reach detection limits below the femto-molar level. However, a further increase in the sensitivity of these sensors… read more here.
Keywords: plasmonic sensors; controlled enrichment; analyte; analyte ultrasensitive ... See more keywords