Rapid determination of trace semicarbazide in flour products by high-performance liquid chromatography based on a nucleophilic substitution reaction.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of separation science"
DOI: 10.1002/jssc.201700045
Abstract: Semicarbazide, a toxic food contaminant, widely exists in food products and it originates from the thermal degradation of a food additive of azodicarbonamide or a metabolite of nitrofurazone abused in meat specimens. Many previous methods… read more here.
Keywords: determination; trace semicarbazide; determination trace; high performance ... See more keywords
Rapid and accurate determination of trace volatile sulfur compounds in human halitosis by an adaptable active sampling system coupling with gas chromatography.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of separation science"
DOI: 10.1002/jssc.201901191
Abstract: Halitosis with the main components of trace volatile sulfur compounds widely affects the quality of life. In this study, an adaptable active sampling system with two sample-collection modes of direct injection and solid phase microextraction… read more here.
Keywords: volatile sulfur; trace volatile; trace; determination trace ... See more keywords
Synthesis of cellulose nanofibers functionalized by dithiooxamide for preconcentration and determination of trace amounts of Cd(II) ions in water samples
Sign Up to like & getrecommendations! Published in 2020 at "Cellulose"
DOI: 10.1007/s10570-020-03388-z
Abstract: A highly efficient natural adsorbent was provided by the synthesis of modified cellulose nanofibers (CNFs) for preconcentration and determination of trace amounts of Cd(II) ions. CNFs were prepared by hydrolysis of wood pulp with strong… read more here.
Keywords: preconcentration determination; determination; cellulose nanofibers; determination trace ... See more keywords
Graphitic Carbon Nitride as a New Sensitive Material for Electrochemical Determination of Trace Amounts of Tartrazine in Food Samples
Sign Up to like & getrecommendations! Published in 2018 at "Food Analytical Methods"
DOI: 10.1007/s12161-018-1264-4
Abstract: AbstractIn this work, g-C3N4 was successfully fabricated by direct pyrolysis of the melamine, and then without any modification, was used to prepare g-C3N4/graphite pencil electrode. The maximum current at this working electrode was depended significantly… read more here.
Keywords: determination trace; trace amounts; food; amounts tartrazine ... See more keywords
Advanced functional materials in solid phase extraction for ICP-MS determination of trace elements and their species - A review.
Sign Up to like & getrecommendations! Published in 2017 at "Analytica chimica acta"
DOI: 10.1016/j.aca.2017.03.047
Abstract: For the determination of trace elements and their species in various real samples by inductively coupled plasma mass spectrometry (ICP-MS), solid phase extraction (SPE) is a commonly used sample pretreatment technique to remove complex matrix,… read more here.
Keywords: elements species; adsorption; trace elements; determination trace ... See more keywords
Switchable hydrophilicity solvent-based preconcentration for ICP-OES determination of trace lead in environmental samples
Sign Up to like & getrecommendations! Published in 2021 at "Microchemical Journal"
DOI: 10.1016/j.microc.2021.106529
Abstract: Abstract In this work, switchable hydrophilicity solvent-based extraction (SHSE) was combined with inductively coupled plasma-optical emission spectrometry (ICP-OES) for the determination of trace lead (Pb) in environmental water and soil samples. During the phase transformation… read more here.
Keywords: icp; environmental samples; icp oes; determination trace ... See more keywords
Novel metal nanoparticle-enhanced fluorescence for determination of trace amounts of fluoroquinolone in aqueous solutions.
Sign Up to like & getrecommendations! Published in 2017 at "Talanta"
DOI: 10.1016/j.talanta.2017.05.053
Abstract: Metal-enhanced fluorescence of fluoroquinolones (FQs) was first observed in aqueous solutions. In addition, a new type of silver nanoparticles (AgNP) was synthesized with simple and easy synthetic processes and environmentally friendly compounds. The effects of… read more here.
Keywords: enhanced fluorescence; fluorescence; aqueous solutions; nanoparticle enhanced ... See more keywords
A simple dilution method for the direct determination of trace nickel in crude oil with a miniaturized electrothermal atomic absorption spectrometer
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Analytical Atomic Spectrometry"
DOI: 10.1039/d0ja00081g
Abstract: A simple procedure for the direct determination of trace nickel in crude oil samples has been proposed using a miniaturized electrothermal atomic absorption spectrometer (ETAAS). Prior to the analysis, crude oil in cyclohexane without any… read more here.
Keywords: determination trace; direct determination; crude oil; oil ... See more keywords
Determination of Trace Elements in Dendrobium Officinale Cultivated in Various Conditions
Sign Up to like & getrecommendations! Published in 2018 at "Analytical Letters"
DOI: 10.1080/00032719.2017.1345931
Abstract: ABSTRACT Dendrobium officinale is an important medicinal plant in traditional Chinese medicine. The consumption of D. officinale has increased rapidly in recent years due to the health awareness among Chinese people. The present study aimed… read more here.
Keywords: cultivation; trace elements; dendrobium officinale; determination trace ... See more keywords
Air-assisted liquid–liquid microextraction combined with flame atomic absorption spectrometry for determination of trace Pb in biological and aqueous samples
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Environmental Analytical Chemistry"
DOI: 10.1080/03067319.2019.1672672
Abstract: ABSTRACT A fast, inexpensive, environmental-friendly and efficient sample preparation method for determination of trace amounts of Pb2+ ions in aqueous samples and humane urine is presented. Lead was extracted using the air-assisted liquid–liquid microextraction (AALLME)… read more here.
Keywords: assisted liquid; air assisted; aqueous samples; determination trace ... See more keywords
SERS Determination of Trace Phosphate in Aquaculture Water Based on a Rhodamine 6G Molecular Probe Association Reaction
Sign Up to like & getrecommendations! Published in 2022 at "Biosensors"
DOI: 10.3390/bios12050319
Abstract: Although phosphate (Pi) is a necessary nutrient for the growth of aquatic organisms, the presence of excess Pi leads to water eutrophication; thus, it is necessary to accurately determine the content of Pi in water.… read more here.
Keywords: r6g; water; determination trace; aquaculture water ... See more keywords